1. api 570 bench mark quiz (1-55)

8/12/2019 1. API 570 Bench Mark Quiz (1-55)

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API 570 – DAY 1 BOOK



Southern Inspection Services

BENCH MARK QUIZ

Note: Encircle the letter of only one alternative, which you think is mostappropriate.

1. For 8” D Sch !0 "n# 8” D Sch 80 pipes$a. OD for both pipes will be sameb. IDs and ODs for both pipes will be differentc. Average pipe diameters for both will be samed. ID for both pipes will be same

%. &ot t"ppin' is (est #escri(e# () st"te*ent+

a. It is technique of heating the pipe to specified temperature andgently tapping with 1 lb. rounded hammer to detect thinning of pipe

wallb. It is technique of providing a tapping connection while pipe system

is in operationc. It is technique of fixing a water tap on hot water lines for use during

winterd. It is act of using the tap and die for threading the pipe when the

pipe is hot

,. -hich o the o//oin' #eines the ter* ho/# point

a. The point at which a pipe hanger is attached to a pipe.b. A point at which a !clamp is fixed on the pipe.

c. A point at pipe beyond which wor" may not proceed untilinspections have been performed and documented

d. A trunnion# or sliding shoe used for piping support systems

!. -hich o the o//oin' st"te*ents is truea. $lange rating indicates flange diameter.b. Other factors remaining same# %&' pipes can withstand higher

pressure than seamless pipes.c. Deadlegs means pipes with bro"en supports.d. A(I )*+ is applicable for metallic pipes only.

5. Post e/# he"t tre"t*ent is c"rrie# outa. To increase ,ardnessb. To increase Tensile strengthc. To release loc"ed!up stresses in the weldd. -one of above.

A(I )*+ DA 1 (age /




1%.ASI9 AS6: B ,1., co#e is *e"nt or+

a. 0team piping in (ower stationsb. (iping in &efinery and process plantsc. 4ross!country pipingd. 6as transmission piping

1,.he ter* ;PS 10 pipe” *e"ns+

a. A pipe with -ational (ressure 0tandard of 1+ barb. A pipe whose minimum thic"ness is 1+ mmc. A pipe whose outside diameter is 1+=d. A pipe whose -ominal diameter is 1+=

1!.6ost o the /ui#s nor*"//) covere# () B ,1., co#e "// un#er h"tc"te'or)

a. 4ategory 3b. 4ategory >c. 4ategory Dd. -ormal

15.he re3uire*ents o the /"test e#ition o AS6: o#e Section B ,1.,"n# "n) su(se3uent A##en#" (eco*e eective+

a. As soon as the latest edition is issuedb. Immediately from date of issue and all piping installed per earlier

editions must be upgraded to latest edition?addendac. After 9 months from date of issued. After 1 year from date of issue

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!%nd!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

A(I )*+ DA 1 (age 8




BENCH MARK QUIZ

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17 D

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A(I )*+ DA 1 (age )




API 570

Pr"ctice =uestions >/ose# Boo?@

1. API 570 covers inspection$ rep"ir "/ter"tion$ "n# rer"tin' proce#ures or*et"//ic pipin' s)ste*s th"t.

a. are being fabricatedb. does not fall under A0T3 <71.7c. have been in!serviced. has not been tested

%. API 570 "s #eve/ope# or the petro/eu* reinin' "n# che*ic"/ processin#ustries

a. It shall be used for all piping systems.b. It may be used# where practical# for any piping systemc. It can be used# where necessary# for steam pipingd. It may not be used unless agreed to by all parties

,. API 570 (e use# "s " su(stitute or the ori'in"/ constructionre3uire*ents 'overnin' " pipin' s)ste* (eore it is p/"ce# inservice.

a. shall notb. shouldc. mayd. can

!. API 570 "pp/ies to pipin' s)ste*s or process /ui#s$ h)#roc"r(ons$ "n#si*i/"r /"**"(/e or toCic /ui# services. -hich o the o//oin' services is notspeciic"//) "pp/ic"(/e

a. &aw# intermediate and finished petroleum productsb. 'ater# steam condensate# boiler feed water c. &aw# intermediate# and finished chemical productsd. ,ydrogen# natural gas# fuel gas# and flare systems

5. So*e o the c/"sses o pipin' s)ste*s th"t "re eCc/u#e# or option"/ orcover"'e un#er API 570 "re /iste# (e//o. -hich one is " *"n#"tor) inc/u#e#c/"ss

a. 'ater b. 4atalyst lines

c. 0teamd. <oiler feed water

A(I )*+ DA 1 (age 9




2. he sh"// (e responsi(/e to the oneruser or #eter*inin' th"tthe re3uire*ents o API 570 or inspection$ eC"*in"tion "n# testin' "re *et.

a. piping %ngineer b. Inspector c. &epair OrganiBationd. Operating (ersonal

7. -ho is responsi(/e or the contro/ o pipin' s)ste* inspection pro'r"*s$inspection re3uencies "n# *"inten"nce o pipin'

a. AuthoriBed piping Inspector b. Owner!ser c. Curisdictiond. 4ontractor

8. An "uthorie# pipin' inspector sh"// h"ve the o//oin' 3u"/iic"tions. Pic? theone th"t #oes not (e/on' to this /ista. $our years of experience inspecting in!service piping systemsb. ,igh school education plus 7 years of experience in the design# construction#

repair# operation# or inspection of piping system.c. Two year certificate in engineering or technology plus / years of experience

in the design# construction# repair# operation or inspection of piping systemsd. Degree in engineering plus one year experience in the design# construction#

repair# operation or inspection of piping. A55 0,O5D ,A% 3I-I33 O-% %A& I- T,% I-0(%4TIO- $I%5D

4. <is? ("se# inspections inc/u#e hich o the o//oin'+a. 5i"elihood assessmentb. 4onsequence analysisc. Operating and inspection historiesd. All of the above

10. An <BI "ssess*ent c"n (e use# to "/ter the inspection str"te') provi#e#+a. The degradation methods are identifiedb. The &<I is fully documentedc. A third party conducts the &<Id. <oth A and < above

11. -hich one o the o//oin' is not " speciic t)pe o "n "re" o #eterior"tiona. &ectifier performanceb. Inection pointsc. Deadlegsd. %nvironmental crac"ing

A(I )*+ DA 1 (age *




1%. InEection points su(Eect to "cce/er"te# or /oc"/ise# corrosion *") (e tre"te# "s

a. The focal point of an inspection circuitb. 0eparate inspection circuitsc. (iping that must be renewed on a regular scheduled. 5ocations where corrosion inhibitors must be used

1,. he reco**en#e# upstre"* /i*it o inspection o "n inEection point is "*ini*u* o

a. 1/ feet of 7 pipe lengths whichever is smaller b. 1/ inches or 7 pipes diameters whichever is smaller c. 1/ inches or 7 pipe diameters whichever is greater d. 1/ feet or 7 pipe length which is greater

1!. he reco**en#e# #onstre"* /i*it o inspection o "n inEection point is "*ini*u* oa. second change in flow direction past the inection point# or /) feet beyond the

first change in flow direction whichever is lessb. second change in flow direction past the inection point# or /) feet beyond the

first change in flow direction whichever is greater c. second change in flow direction past the inection point# or /) inches beyond

the first change in flow direction whichever is lessd. second change in flow direction past the inection point# or /) inches beyond

the first change in flow direction whichever is greater

15. Se/ect thic?ness *e"sure*ent /oc"tion >6s@ ithin inEection point circuitssu(Eecte# to /oc"/ise# corrosion "ccor#in' to the o//oin' 'ui#e/ines. Se/ectthe one th"t #oes not (e/on'

a. %stablish T35s on appropriate fittings within the inection point circuitb. %stablish atleast one T35 at a location atleast /) feet beyond the

downstream limit of the inection pointc. %stablish T35s on the pipe wall at the location of the expected pipe wall

impingement or inected fluidd. %stablish T35s at both the upstream and downstream limits of the inection

point circuit < 6ives /) feet beyond the down stream limit of the inection point. 0o it is wrong.(lease not it is not given as /) feet beyond the Down stream inection point. The word5I3IT ma"es the entire difference

12. -h"t "re the preerre# *etho#s o inspectin' inEection points a. &adiography and? or ultrasonicsb. ,ammer test and? or radiographc. ltrasonics and ? or liquid penetrantd. 5iquid (enetrant and ? or eddy current

In 'ener"/ G is 6ore or thic?ness 6e"sure*ent $ But << "/so c"n (e use# ors*"// sies here G is not possi(/e > Proi/e r"#io'r"ph) @ But For #eect#etection < is Better

A(I )*+ DA 1 (age @




17. Durin' perio#ic sche#u/e# inspections$ *ore eCtensive inspection shou/# (e"pp/ie# to "n "re" (e'innin' upstre"* o the inEection

no/e "n# continuin' or "t/e"st pipe #i"*eters #onstre"* othe inEection pointa. 1+ inches# /+b. 1/ feet# 1+c. 1/ inches# 1+d. 1+ feet# 1+

Inection (oint Inspection upstream 1/ inch or 7 times dia which ever is moreInection point Downstream 0econd change in flow direction or /) feet beyond thee firstchange in flow direction which ever is less3ore extensive inspection up steam 1/ inch# Down stream 1+ times Dia

18. -h) shou/# #e"#/e's in pipin' (e inspecte#a. A(I )1+ mandates the inspection of deadlegsb. Acid products and debris build up in deadlegsc. The corrosion rate in deadlegs can vary significantly from adacent active

pipingd. 4austic products and debris build up in deadlegs

14. Both the st"'n"nt en# "n# the connection to "n "ctive /ine o " #e"#/e' shou/#(e *onitore#. In " hot pipin' s)ste*$ h) #oes the hi'h point o " #e"# /e'corro#e "n# nee# to (e inspecte#

a. 4orrosion occurs due to directed currents set up in the deadlegb. %rosion occurs due to convective currents setup in the deadlegc. 4orrosion occurs due to convective currents setup in deadlegd. %rosion occurs due to directed currents set up in the deadleg

%0. -h"t is the (est thin' to #o ith #e"# /e's th"t "re no /on'er in servicea. ltrasonically inspect oftenb. &adiograph oftenc. Inspect oftend. &emove them

%1. -h"t "re the *ost co**on or*s o corrosion un#er insu/"tion >GI@a. 5ocalised corrosion of non!ferrous metals and chloride stress corrosion

crac"ing of carbon steelb. 5ocalised corrosion of chrome!moly steel and chloride stress corrosion

crac"ing of ferritic stainless steelc. 5ocalised corrosion of carbon steel and chloride stress corrosion of crac"ing

of austenitic stainless steeld. 5ocalised corrosion of nic"el!silicon alloy and caustic stress corrosion of

austenitic stainless steel

A(I )*+ DA 1 (age




%%. -h"t c/i*"tic "re" *") re3uire " ver) "ctive pro'r"* or corrosion un#erinsu/"tion

a. 4ooler northern continent locations.b. 4ooler direr# mid!continent locationsc. 'armer# marine locationsd. 'armer drier# desert locations

%,. ert"in "re"s "n# t)pes o pipin' s)ste*s "re potenti"//) *ore suscepti(/e tocorrosion un#er insu/"tion. -hich o the ite*s /iste# is not suscepti(/e to GI

a. Areas exposed to mist over!spray from cooling water towers.b. 4arbon steel a pipings system that normally operates in!service above /)+

degrees but are in intermittent service.c. Deadlegs and attachments that protrude from insulated piping and operate at

a different temperature than the temperature of the active line.

d. 4arbon steel piping systems operating between /)+ degrees $ and 9++degree $.

%!. -h"t /oc"tion is su(Eect to p"rticu/"r "ttention re/"te# to corrosion un#erinsu/"tion "n# inspection contri(utes to it

a. 5ocation where pipe hangers and other supports exist.b. 5ocations where insulators has been stripped to permit inspection of the

piping.c. 5ocations where insulation plugs have been removed to permit piping

thic"ness measurements.d. 5ocations where there is damaged or missing insulation ac"eting.

%5. Soi/toAir >S9A@ inter"ces o (urie# pipin' "re " /oc"tion here /oc"/ie#corrosion *") t"?e p/"ce. I the (urie# p"rt is eCc"v"te# or inspection$ ho#eep shou/# the eCc"v"tion (e to #eter*ine i there is hi##en #"*"'e

a. 1/ to 1@ inchesb. 9 to 1/ inchesc. 1/ to 18 inchesd. 9 to 1@ inches

%2. At concreteto"ir "n# "sph"/tto"ir inter"ces o (urie# pipin' ithoutc"tho#e protection$ the inspector /oo? or evi#ence th"t the c"u/?in' or se"/ "tthe inter"ce h"s #eterior"te# "n# "//oe# *oisture in'ress. I such "con#ition eCists on pipin' s)ste* over )e"rs o/#$ it *") (enecess"r) to inspect or corrosion (ene"th the sur"ce (eore rese"/in' the

Eoint.a. @b. )c. 1)d. 1+

A(I )*+ DA 1 (age 1+




%7. An eC"*p/e o service speciic "n# /oc"/ie# corrosion is+a. 4orrosion under insulation in areas exposed to steam vents

b. nanticipated acid or caustic carryover from process into non!alloyed pipingc. 4orrosion in Deadlegsd. 4orrosion of underground piping at soil!to!air interface where it ingresses or

egresses

%8. :rosion c"n (e #eine# "s+a. 6alvanic corrosion of material where uniform losses occur.b. &emoval of surface material by action of numerous impacts of solid or liquid

particlesc. 6radual loss of material by a corrosive medium acting uniformly on the

material surfaced. (itting on the surface of the material to the extend that a rough uniform loss

occurs

%4. A co*(in"tion o corrosion "n# erosion resu/ts in si'niic"nt/) 're"ter *et"//oss th"t c"n (e eCpecte# ro* corrosion or erosion "/one. his t)pe o /ossoccurs "t

a. ,igh velocity and high turbulence areasb. Areas where condensation or exposure to wet hydrogen sulphide or

carbonates occur c. 0urface!to!air interfaces of buried pipingd. Areas where gradual loss of material occurs because of a corrosive medium

,0. :nviron*ent"/ cr"c?in' o "ustenite st"in/ess stee/ is c"use# *"n) ti*es ()+a. %xposing areas to high!velocity and high!turbulence streamsb. %xcessive cyclic stresses that are often very lowc. %xposure to chlorides from salt water# was!up water# etcd. 4reep of the material by long time exposure to high temperature and stress

,1. -hen the inspector suspects or is "#vise# th"t speciic pipin' circuits *") (esuscepti(/e to environ*ent"/ cr"c?in'$ the inspector shou/#+

a. 4all in piping engineer for consultationb. Investigate the history of the piping circuitc. Obtain advise from a 3etallurgical %ngineer d. 0chedule supplemental inspection

A(I )*+ DA 1 (age 11




,%. I environ*ent"/ cr"c?in' is #etecte# #urin' intern"/ inspection o pressurevesse/s$ h"t shou/# the inspector #o

a. The inspector should designate appropriate piping spools upstream anddownstream of the vessel to be inspected if piping is susceptible toenvironmental crac"ing.

b. The inspector should consult with a metallurgical engineer to determineextent of the problems

c. The inspector should review history of adacent piping to determine if it hasever been affected

d. The inspector should consult with a piping engineer to determine the extendof the problem

,,. I eCtern"/ or intern"/ co"tin' or rer"ctor) /iners on " pipin' circuit "re not in'oo# con#ition$ h"t shou/# "n inspector #o

a. After inspection# select a portion of the liner for removalb. The entire liner should be removed for inspectionc. 0elected portions of the liner should be removed for inspectiond. After inspection# if any separation# brea"s# holes or blisters are found# it may

be necessary to remove portions of the lining to determine the conditionunder it.

,!. -h"t course o "ction shou/# (e o//oe# it " co"tin' o co?e is oun# on theinterior o " /"r'e pipe o " re"ctor on " /ui# c"t"/)tic cr"c?in' unit

a. Determine whether such deposits have active corrosion beneath them. Ifcorrosion is present# thorough inspection in selected areas may be required.

b. The co"e deposits should be removed from the area for inspection.c. The co"e deposits may be ignored ! the deposit may probably protect the line

from corrosion.d. 4onsult with a (rocess %ngineer and a 3etallurgist on the necessity of

removing the co"e deposit.

,5. F"ti'ue cr"c?in' o pipe s)ste* *") resu/t ro*a. %mbrittlement of the metal due to operating bellow its transition temperatureb. %rosion or corrosion ?erosion that thin the piping where it crac"sc. %xcessive cyclic stress that are often well below the static yield strength of

the materiald. %nvironmental crac"ing caused by stress corrosion due to the presence of

caustic# amine# or other substance.

,2. -here c"n "ti'ue cr"c?in' t)pic"//) (e irst #etecte#a. At points of low!stress intensification such as reinforced noBBlesb. At points of high!stress intensification such as branch connectionsc. At points where cyclic stresses are very lowd. At points where there are only bending or compressive stresses.

A(I )*+ DA 1 (age 1/




,7. -h"t "re the preerre# D: *etho#s or #etectin' "ti'ue cr"c?in'a. %ddy current testing# ultra sonic A!scan testing and ? or possibly hammer

testingb. 5iquid (enetrant testing# magnetic particle testing and ? or possibly acousticemission testing

c. isual testing# eddy current testing and? or possibly ultrasonic testingd. Acoustic emission testing# hydro!testing and ? or possibly ultrasonic testing

To detect fatigue crac" E 0urface in natureF usually 3T G (T Is used# &T G T are notpreferred

,8. reep is #epen#ent on+a. Time# temperature and stressb. 3aterial# product contained and stressc. Temperature# corrosive medium and load

d. Time# product contained and load

,4. An eC"*p/e o here creep cr"c?in' h"s (een eCperience# in the in#ustr) is inthe pro(/e*s eCperience# ith cr"c?in' o 1.%5H chro*e stee/s oper"tin' "tte*per"ture "(ove #e'ree F

a. )++b. ++c. 1+++d. 1/++

!0. Britt/e r"cture c"n occur in c"r(on$ /o"//o) "n# other erritic stee/s "t or(e//o te*per"ture.

a. 18+ degreeb. Ambientc. 1++ degreed. 7+ degree

!1. -"ter "n# "3ueous so/utions in pipin' s)ste*s *") reee "n# c"use "i/ure(ec"use o the

a. %xpansion of these materialsb. 4ontraction of these materialsc. 4onstruction of these materialsd. Decrease of these materials

!%. Dierent t)pes o inspection "n# survei//"nce "re "ppropri"te #epen#in' onthe circu*st"nces "n# the pipin' s)ste*. Pic? the one th"t #oes not (e/on' inthe o//oin' /ist+

a. Internal and external visual inspectionb. Thic"ness measurement inspectionc. ibrating piping inspectiond. 4hemical analysis inspection

A(I )*+ DA 1 (age 17




!,. Intern"/ visu"/ inspections "re on pipin' un/ess it is " /"r'e#i"*eter tr"nser /ine$ #uct$ c"t"/)st /ine or other /"r'e #i"*eter pipin' s)ste*

a. The most effective inspectionb. The most useful means of inspectionc. -ot normally performedd. The maor means of inspection

!!. "*e "n "##ition"/ opportunit) or " nor*"/ non#estructive intern"/inspection o pipin'

a. 'hen the piping fails and the interior is revealedb. 'hen maintenance as"s for an internal inspectionc. 'hen piping flanges are disconnectedd. 'hen a fire occurs and the pipe is in the fire

!5. -h) is the thic?ness *e"sure*ent inspection peror*e#a. To satisfy urisdictional requirementsb. To determine the internal condition and remaining thic"ness of the piping

componentsc. To determine the external condition and amount of deposits inside the pipingd. To satisfy heat transfer requirements of the piping

!2. -ho peror*s the thic?ness *e"sure*ent inspectiona. The operator or control manb. The inspector or examinec. The maintenance wor"ers or supervisorsd. The urisdiction or O0,A

!7. -hen corrosion pro#uct (ui/#up is note# #urin' "n eCtern"/ visu"/ inspection"t " pipe support cont"ct "re"$ /itin' o such supports *") (e re3uire# orinspection. -hen #oin' this$ c"re shou/# (e

a. exercised if the piping is in!serviceb. used when determining the course of actionc. practiced so as not to disturb the supportsd. ta"en that a complete record of the problem is made

!8. =u"/iie# oper"tin' or *"inten"nce personne/ "/so *") con#uct eCtern"/visu"/ inspection hen+

a. 0atisfactory to the owner!user b. Acceptable to the inspector c. Agreeable to the maintenance supervisor d. (ermissible to the operation supervisor ,ere it is not owner user# because it comes into the scope of authorisedinspector

A(I )*+ DA 1 (age 18




!4. -ho ou/# nor*"//) report vi(r"tin' or s")in' pipin' to en'ineerin' orinspection personne/

a. Operating personnelb. Curisdictional personnelc. 3aintenance personneld. O0,A personnel

50. her*o'r"ph) is use# to chec? or+a. ibrating sections of the pipe systemb. Detecting localiBed corrosion in the piping systemc. Abnormal thermal expansion of piping systemd. ,ot spots in refractory lined piping systems

51. hic?ness *e"sure*ent /oc"tions >6s@ "re speciic "/on'

the pipin' circuit here inspections "re to (e *"#ea. (ointsb. Areasc. Itemsd. Cunctures

5%. he *ini*u* thic?ness "t e"ch 6 c"n (e /oc"te# ()a. %lectromagnetic techniquesb. ltrasonic scanning or radiographyc. ,ammer testingd. 3T and ? or (T

5,. -here "ppropri"te$ thic?ness *e"sure*ents shou/# inc/u#e *e"sure*ents "te"ch o on pipe "n# ittin's

a. Two quadrantsb. Three locationsc. $our quadrantsd. 0ix points

5!. -here shou/# speci"/ "ttention (e p/"ce# hen t"?in' thic?ness*e"sure*ents o "n e/(o

a. The outlet endb. The inlet endc. The inside and outside radiusd. The sides

55. 6s shou/# (e *"r?e# on inspection #r"in's "n# to "//orepetitive *e"sure*ents

a. On the inspectors notesb. On a computer systemc. On the piping systemd. On maintenance department charts

A(I )*+ DA 1 (age 1)




52. -h"t is t"?en into "ccount () "n eCperience# inspector hen se/ectin' 6sa. The amount of corrosion expected

b. The patterns of corrosion that would be expectedc. The number and the cost of reading the T35sd. 'hether the T35s are easily accessed

57. In theor)$ " pipin' circuit su(Eect to perect/) unior* corrosion cou/# (e"#e3u"te/) *onitore# ith 6s

a. 1b. /c. 7d. 8

58. 6ore 6s shou/# (e se/ecte# or pipin' s)ste*s ith "n) o the o//oin'

ch"r"cteristicsa. 5ow potential for creating a safety or environmental emergency in the eventof a lea"

b. 3ore complexity in terms of fittings# branches# deadlegs# inection points# etcc. &elatively non!corrosive piping systemsd. 5ong# straight H run piping systems

54. Feer 6s c"n (e se/ecte# or pipin' s)ste*s ith "n) o the o//oin'ch"r"cteristics

a. 3ore complexity in terms of fittings# branches# deadlegs# inection points# etcb. ,igher expected or experienced corrosion ratesc. 5ong# straight!run piping systemsd. ,igher potential for localiBed corrosion

20. 6S c"n (e e/i*in"te# ro pipin' s)ste*s ith the o//oin' ch"r"cteristicsa. ,igher potential for creating a safety or environmental emergency in the

event of a lea"b. 5ow potential for creating a safety or environmental emergency in the event

of a lea"c. %xtremely low potential for creating a safety of environmental emergency in

the event of a lea"d. 3ore complexity in terms of fitting# branches# deadlegs# inection points# etc

21. -h"t is usu"//) the *ost "ccur"te *e"ns or o(t"ine# thic?ness*e"sure*ents on inst"//e# pipe /"r'er th"n PS

a. 3Tb. Tc. (Td. %T

A(I )*+ DA 1 (age 19




2%. -h"t thic?ness *e"surin' techni3ue #oes not re3uire the re*ov"/ o so*eeCtern"/ pipin' insu/"tion

a. A%b. Tc. %Td. &T

2,. -hen u/tr"sonic thic?ness *e"sure*ents "re t"?en "(ove #e'rees F$ instru*ents coup/"nts$ "n# proce#ures shou/# (e use# th"t i//resu/t in "ccur"te *e"sure*ents "t the hi'her te*per"ture

a. 1)+b. 1*)c. /++d. /)+

1)+ $ 0pecial (rocedure# /++$ H 1 J to )J error#1J error in thic"ness measurement for every 1++ $ above ambient temperature# Above 1+++ $ do not use delay line probe H se 0pecial probe

2!. )pic"/ #i'it"/ thic?ness '"'es *") h"ve trou(/e *e"surin' thic?ness /essth"n inches

a. +./1@@b. +.1@*)c. +.1)9/d. +.1/)+

25. -hen pressure testin' o pipin' s)ste*s "re con#ucte#$ the) sh"// (eperor*e# in "ccor#"nce ith the re3uire*ents o

a. A03% <71.7b. A03% <G( 4ode section IIIc. 0A < 19.)d. A(I )1+

22. I " /oer pressure test >/oer th"n prescri(e# () co#e@ is use# on/) orti'htness o pipin' s)ste*s$ the *") #esi'n"te the pressure

a. Owner!user b. Inspector c. Curisdictiond. 4ontractor

27. he preerre# *e#iu* or " pressure test is a. 0teamb. Air c. 'ater d. ,ydrocarbon

A(I )*+ DA 1 (age 1*




28. I " nontoCic h)#roc"r(on >/"**"(/e@ is use# "s the test *e#iu*$ the /i3ui#

/"sh point sh"// (e "t /e"st #e'rees F or 're"ter a. )b. 1++c. 11+d. 1/+

It is separate requirement. 0o 3ug it up. Any way temperature Dapa is asfollows.(T temp is from )+ Deg $ or 9+ Deg $ to 1/) Deg $#

5T tem is from 8+ Deg $ to 1/)#

$or 3T Dry it is above 9++ Deg $. $or wet usually 17) Deg $. <ut if the choice isgiven as by the manufacturer then prefer that$O& T1)+ $ 0pecial (rocedure# /++$ H 1 J to )J error#1J error in thic"ness measurement for every 1++ $ above ambient temperature# Above 1+++ $ do not use delay line probe H se 0pecial probe$lash (oint for (enetrant in the open tan" is 7 Deg 4#$lashpoint for -on toxic ,ydrocarbon test medium is 1/+ Deg $6eneral $lash (oint for (T is )* D%6 4. 4hec" with O( disc

24. Pipin' "(ric"te# o or h"vin' co*ponents o ,00 series st"in/ess stee/ shou/#(e teste# ith

a. 'ater with a p, of 8b. 'ater with a p, of 9c. 'ater with a chloride content of less than 8++ ppm chloridesd. 0team condensate

70. For sensitie# "ustenitic st"in/ess stee/$ pipin' su(Eect to po/)thionic stresscorrosion cr"c?in'$ consi#er"tion shou/# (e 'iven to usin' or pressure testin'

a. An acidic!water solutionb. An al"aline!water solutionc. A water with a p, of )d. A water with a p, of 8

00 7++ should be tested with (otable water or steam condensate. (otable watershould ,ave chlorine content less than /)+ ppm. If potable water or steamcondensate are not available use very low chloride or high (, water to reducethe ris" of pitting EacidF G 3I4$or 0ensitiBed A0 00 use al"aline solution

A(I )*+ DA 1 (age 1@




71. -hen " pipe re3uires post e/# he"t tre"t*ent$ hen shou/# the pressure test(e peror*e#

a. During heat treatmentb. <efore any heat treatmentc. After any heat treatmentd. -o test is required

7%. Durin' " pressure test$ here test pressure i// eCcee# the set pressure o thes"et) re/ieve v"/ve or v"/ves on " pipin' s)ste*$ the s"et) re/ie v"/ve orv"/ves shou/# (e hen c"rr)in' out the test

a. Altered by screwing down the adusting screwb. &eset to exceed the test pressurec. 4hec"ed or testedd. &emoved or blan"ed

Test pressure should never exceed set pressure of valves

7,. -hen usin' (/oc? v"/ves to iso/"te " pipin' s)ste* or pressure test$ h"tprec"ution shou/# (e t"?en

a. Do not use a globe valve during a testb. 3a"es sure the pac"ing gland of the valves is tightc. Do not exceed the permissible seat pressure of the valved. 4hec" the bonnet bolts to ma"e sure they are right

7!. Sever"/ *etho# *") (e use# to veri) th"t the correct "//o) pipin' is in "s)ste* pic? the incorrect *etho#s ro* the /ist (e/o

a. ,olographyb. Optical spectrographic analyBer c. 2!ray fluorescent analyBer d. 4hemical spot chec"ing

75. "*e " p"rt o " pipin' s)ste* th"t thic?ness *e"sure*ents "re not nor*"//)routine/) t"?en

a. %lbowsb. %xpansion loopsc. Teesd. alve

72. I environ*ent"/ cr"c?in' is oun# #urin' inservice inspection o e/#s$ ho"ssesses the pro(/e*

a. Owner!user b. Inspector c. (iping %ngineer d. 3etallurgistInspector will chec" and measure and inspect environmental crac"ing butassessing is to done only by the piping engineering

77. I "n inspector in#s "n i*perection in "n ori'in"/ "(ric"tion e/# "n#"n"/)sis is re3uire# to "ssess the i*p"ct o the e/# 3u"/it) on pipin'inte'rit)$ hich o the o//oin' *") peror* the "n"/)sis

A(I )*+ DA 1 (age 1




8%. A// process pipin' s)ste*s *ust (e c"te'orise# into #ierent c/"sses. Onh"t "re the c/"ssiic"tions se/ection ("se#

a. &equirements of urisdiction and the proximity of population areasb. (otential safety and environmental effects should a lea" occur c. 5iability to the owner!user and the requirements of the urisdictiond. Access to the systems for inspection and closeness to population areas

8%. >1@ Inspection str"te') ("se# on /i?e/ihoo# "n# conse3uence o "i/ure isc"//e#

a. &<Ib. $$0c. <I&d. 30O0

8%. >%@ An <BI "ssess*ent c"n (e use# to the inspection interv"/

/i*its in "(/e2.1 o API 570 or the eCtent o the inspection con#ucte#a. Increaseb. Decreasec. %ither a or b aboved. -one of the above

8%. >,@ -hen "n <BI "ssess*ent is use# to incre"se or #ecre"se inspectioninterv"/s$ the "ssess*ent sh"// (e con#ucte# on /"ss 1 s)ste* "t " *"Ci*u*interv"/ o )e"rs

a. )b. 1+c. 1)d. 7

8,. iste# (e/o "re sever"/ eC"*p/e o " ASS1 pipin' s)ste*. -hich one #oesnot (e/on'

a. Anhydrous hydrogen chlorideb. ,ydrofluoric acidc. (iping over or adacent to water and piping over public throughwaysd. Distillate and product lines to and from storage and loading

8!. O the three c/"ssiic"tion o pipin' s)ste*s$ hich inc/u#es the *"Eorit) ounit processes "n# se/ecte# osite pipin'

a. 4lass 7b. 4ombination of classes 1 and /c. 4lass 1d. 4lass /,/ gas# natural gas# fuel gas# catalyst# hydrocarbons which slowly vaporiBe

A(I )*+ DA 1 (age /1




85. /"ss , pipin' is #escri(e# "s (ein' in servicesa. 'ith the highest potential of resulting in an immediate emergency if a lea"

occursb. That are flammable but do not significant vaporise when they lea" and arenot located in high!activity areas

c. That are not flammable and pose no significant ris" to populated areasd. That are not classes 1 and /

82. -ho est"(/ishes inspection interv"/ or thic?ness *e"sure*ents$ eCtern"/visu"/ inspections "n# or intern"/ "n# supp/e*ent"/ inspection

a. (iping engineer b. Owner!user or the inspector c. 4hemical %ngineer d. (iping engineer and the urisdiction

87. hic?ness *e"sure*ent inspection shou/# (e sche#u/e# ("se# on thec"/cu/"tion o not *ore th"n

a. One half the remaining life determined from corrosion rates or the maximuminterval of ) years whichever is shorter

b. One half the remaining life determined from corrosion rates or the maximuminterval allowed by A(I )*+ in Table 9.1# whichever is shorter

c. One fourth the remaining life determined from corrosion rates or themaximum interval of 1+ years whichever is shorter

d. One quarter the remaining life determined from corrosion rates or themaximum interval allowed by A(I )*+ in Table L# whichever is shorter

88. For eCtern"/ inspection or potenti"/ corrosion un#er insu/"tion >GI@ on/"ss1 s)ste*s$ the eC"*in"tion shou/# inc/u#e "t /e"st percent o"// suspect "re"s "n# percent o "// "re"s o #"*"'e#insu/"tion

a. )+#*)b. )+#77c. *)#)+d. /)#1+

84. Pipin' s)ste* th"t "re ?non to h"ve " re*"inin' /ie o over )e"rs or th"t "re protecte# "'"inst eCtern"/ corrosion nee# not h"ve insu/"tionre*ove# or the perio#ic eCtern"/ inspection

a. 1+b. 1)c. )d. /+

A(I )*+ DA 1 (age //




40. For /"ss , pipin' s)ste*s$ the eC"*in"tion or corrosion un#er insu/"tion>GI@ shou/# inc/u#e "t /e"st percent o "// suspect "re"s

a. )+b. 7+c. 1+d. +

41. For /"ss % pipin'$ the eCtent o GI inspections on " s)ste* oper"tin' "t!5F i// (e

a. *)J of damaged areas# )+J of suspect areasb. )+J of suspect areas# 77J of damaged areasc. 77J of damaged areas# )+J of suspect areasd. -one of the above

4%. S*"// (ore pipin' >SBP@ th"t is /"ss I sh"// (e inspecte#a. 'here corrosion has been experiencedb. At the option of the inspector c. To the same requirement as primary process pipingd. Only if it has dead legs

4,. Inspection o s*"// (ore pipin' >SBP@ th"t is secon#"r) "n# "uCi/i"r)>"ssoci"te# ith instru*ents "n# *"chiner)@ is

a. Only required where corrosion has been experiencedb. Optionalc. Only if it has dead legsd. Only if it is threaded

4!. I "n inspector in#s thre"#e# s*"// (ore pipin' >SBP@ "ssoci"te# ith*"chiner) "n# su(Eecte# to "ti'ue #"*"'e$ (e shou/#

a. (lan periodically to assess it and consider it for possible renewal with athic"er wall or upgrade it to welded components

b. Inspect it only if it is corroded and the class of service requires an inspectionc. 4all for dismantling the threaded oints for close inspection to determine if any

crac"s are in the roots of the threadsd. have all the threaded piping renewed at each inspection period

45. An ei'htinch #i"*eter pipin' s)ste* is inst"//e# in Dece*(er 1474. heinst"//e# thic?ness i *e"sure# "s 0.,!”. he *ini*u* thic?ness o the pipe is0.%”. It is inspecte# 1%98, "n# the thic?ness is oun# to (e 0.,%”. An inspection1%987 reve"/s " /oss o 0.01” ro* the 1%985 inspections. Durin' 1%984 thethic?ness "s oun# to (e 0.%4”. he /"st inspection "s #urin' 1%945 "n# thethic?ness "s oun# to (e 0.%2”. -h"t is the /on'ter* corrosion r"te o thiss)ste*

a. +.++);?year b. +.++*);?year c. +.++7*);?year d. +.++/);?year

42. Gsin' the inor*"tion in 3uestion 45$ c"/cu/"te the shortter* corrosion r"te

A(I )*+ DA 1 (age /7




a. +.++);?year b. +.++*);?year

c. +.++7*);?year d. +.++/);?year

47. Gsin' the inor*"tion in 3uestion 45 "n# 42$ #eter*ine the re*"inin' /ie othe s)ste*

a. 1@yearsb. 1) yearsc. 1/ yearsd. 9 years

48. You h"ve " ne pipin' s)ste* th"t h"s Eust (een inst"//e#. It is co*p/ete/) ne"n# no inor*"tion eCists to est"(/ish " corrosion r"te. A/so$ inor*"tion is not

"v"i/"(/e on " si*i/"r s)ste*. You #eci#e to put the s)ste* in service "n# Dit /"ter to #eter*ine the corrosion r"te. &o /on' #o )ou "//o the s)ste* tost") in service (eore )ou t"?e )our irst thic?ness re"#in's

a. 1 monthb. 7 monthc. 9 monthd. 1/ month

44. Ater "n inspection interv"/ is co*p/ete# "n# i c"/cu/"tions in#ic"te th"t "nin"ccur"te r"te o corrosion h"s (een "ssu*e# in " pipin' s)ste*$ ho #o )ou#eter*ine the corrosion r"te or the neCt inspection perio#

a. 4hec" the original calculations to find out what the error is in the originalassumption

b. nless the corrosion rate is higher# the initial rates shall be usedc. The corrosion rate shall be adusted to agree with the actual rate foundd. If the corrosion rate is higher than originally assumed# call in a corrosion

specialist.

100. I " pipin' s)ste* is *"#e up o un?non *"teri"/s "n# co*put"tions*ust (e *"#e to #eter*ine the *ini*u* thic?ness o the pipe$ h"t c"n theinspector or the pipin' en'ineer #o est"(/ish the *ini*u* thic?ness

a. The lowest grade material and oint efficiency in the applicable code may beassumed for calculations

b. 0amples must be ta"en from the piping and testing for maximum tensilestress and yield strength will determine the allowable stress to be used

c. The piping made of the un"nown material must be removed from service andcurrent piping of "nown material must be installed

d. The piping of un"nown material may be subected to a hydrostatic stresstests while having strain gages on it to determine its yield strength and thusallowable stress

A(I )*+ DA 1 (age /8




101. A pipin' en'ineer is #esi'nin' " pipin' service ith hi'h potenti"/conse3uences i " "i/ure occurs$ i.e. " ,50psi n"tur"/ '"s /ine "#E"cent to "

hi'h #ensit) popu/"tion "re" h"t shou/# (e consi#er #oin' or un"nticip"te#situ"tionsa. ,ave all his calculations chec"ed twiceb. Increase the required minimum thic"nessc. -otify the owner!user and the urisdictiond. 0et up an emergency evacuation procedure

10%. -hen ev"/u"tin' /oc"//) thinne# "re"s$ the sur"ce o the e/# inc/u#es on either si#e o the e/# or ti*es the*ini*u* *e"sure# thic?ness on either si#e o the e/#$ hichever is 're"ter

a. +.);# 7b. 1;# /

c. /;# 1d. 1.);# 1.)

10,. An inspector in#s " thin "re" in " "(ric"te# %!” #i"*eter pipe. he thin"re" inc/u#es " /on'itu#in"/ e/# in the pipe "n# is 10 eet /on' "n# % ootcircu*erenti"//). "/cu/"tions sho th"t ith 0.85 Eoint "ctor$ the pipe *ust(e rep"ire#$ renee#$ etc. or the pressure in the pipe *ust (e /oere#. heoner #oes not "nt to #o "n) hot or? on the pipe "n# the #ose not ish to/oer the pressure h"t other course cou/# )ou o//o

a. 'rite the results of the inspection up and leave it with the owner b. &adiograph the weld 1++J and increased the oint factor to onec. Insist that the weld be repaired or renewed or that the pressure be loweredd. 4all in a regulator agency to force the owner to repair# renew# etc the line

Only for new pipes increasing the oint factors by additional &T is allowed $or inservicepipe is not allowed.

10!. Pipin' stress "n"/)sis is #one #urin' the s)ste*Js ori'in"/ #esi'n. &oc"n the inspector *"?e use o stress "n"/)sis inor*"tion9

a. An inspector cannot use this information. It is only meaningful to a pipingengineer

b. It can be used to ma"e sure the piping system was originally evaluated anddesigned correctly

c. It can be used to concentrate inspection efforts at locations most prone tofatigue or creep damage# and to solve vibration problems

d. The inspector should use this information t o evaluate the need forconducting additional piping stress analysis

A(I )*+ DA 1 (age /)




105. You "re inspectin' " pipin' s)ste*. You in# " si'niic"nt /oss o *"teri"/>" *"Eor incre"se o corrosion r"te@ in '"s oi/ pipin' >use# "s re(oi/er oi/$

te*per"ture 500 #e'rees F@ on " F/ui# "t"/)tic r"c?in' Gnit. -h"t is the (estcourse o "ction or )ou to t"?ea. The losses may be reported to your supervisor for corrective responseb. The losses should be recorded and reported in your final report after unit has

start!upc. It shall be reported to the owner!user for appropriate actiond. &eplace excessively thin piping and note replacement in the final report after

unit start!up

102. he sh"// *"int"in "ppropri"te per*"nent "n#pro'ressive recor#s o e"ch pipin' s)ste* covere# () API 570

a. Inspector

b. Owner!user c. Curisdictiond. %xaminer

107. -hen *"?in' rep"irs "n# "/ter"tions to pipin' s)ste*s$ the princip/es o or the co#e to hich the pipin' s)ste* "s (ui/t sh"// (eo//oe#

a. A03% <71.7b. A(I )*+c. A(I )*8d. A03% <G( code

108. <ep"ir "n# "/ter"tion or? *ust (e #one () " rep"ir or'"nis"tion "s#eine# in API 570 "n# *ust (e "uthorie# () the prior to itsco**ence*ent

a. Curisdictionb. Inspector c. Owner!user d. %xaminer &epair organiBation must be authoriBed by A(I Inspector. $or alteration wor"piping engineerMs approval is needed

104. Authori"tion or "/ter"tion or? to " pipin' s)ste* *") (e 'iven () theinspector "ter

a. -otifying the urisdiction and getting their approvalb. 4onsulting A(I )*+ and getting the approval of the owner!user c. 4onsultation with and approval by a piping engineer d. Discussing with and consent by an examiner

A(I )*+ DA 1 (age /9




110. A rep"ir proce#ure invo/vin' e/#in' re3uires th"t the root p"ss o thee/# (e inspecte# (eore continuin' the e/#. A ;ho/#” on the rep"ir is

re3uire# "t this point -ho #esi'n"tes this ;ho/#”a. A metallurgistb. The owner!user c. An A(I )*+ inspector d. The welder supervisor

111. -h"t t)pe o rep"irs "n# proce#ures *") the inspector 'ive prior 'ener"/"uthoris"tion to continue >provi#e# the inspector is s"tisie# ith theco*petenc) o the rep"ir or'"nis"tion@

a. 3aor repairs and minor proceduresb. 5imited or routine repairs and proceduresc. Alterations and re!rating

d. 3inor re!ratings and alterations

11%. -ho "pproves "// propose# *etho#s o #esi'n$ eCecution$ *"teri"/s$e/#in' proce#ures$ eC"*in"tion "n# testin' o inservice pipin'

a. The urisdiction or the piping engineer as appropriateb. The analyst and the operator as appropriatec. The examiner and the piping programmer as appropriated. The inspector or the piping engineer as appropriateOwner ! user -O

11,. -ho *ust 'ive "pprov"/ or "n) onstre"* e/#in'a. Owner!user b. Curisdictionc. %xaminer d. AnalystThis is only for owner user. Increased overall responsibility H owner userInspection# decisions# ,old point H A(I Inspector and piping engineer

11!. An inspector in#s " cr"c? in the p"rent *et"/ o " pipe "#E"cent to "support /u'. he pipe "s (ein' inspecte# "ter " 5 )e"r run. Beore rep"irin'the shou/#

a. -otify the urisdiction prior to the start of any repairsb. 'rite a detailed procedure for the repair organiBations use in repairing the

crac"c. 4onsult with the piping engineer to identify and correct the cause of the crac"d. 4onsult with a metallurgist prior to writing a procedure to repair the crac"

A(I )*+ DA 1 (age /*




115. A u// encirc/e*ent e/#e# sp/it s/eeve #esi'ne# () " pipin' en'ineer *")(e "pp/ie# over #"*"'e or corro#e# "re" o " pipe. his is consi#ere# "

te*por"r) rep"ir hen shou/# " per*"nent rep"ir (e *"#ea. If the owner!user designates the welded split sleeves as permanent if mayremain

b. A full encirclement welded split sleeve is permanent if o"ayed by theinspector

c. A full encirclement welded split sleeve is considered a permanent repair d. A permanent repair must be made at the next available maintenance

opportunity

112. -h"t t)pe o #eect$ corrosion$ pittin' "n# 9 or #iscontinuit) shou/# not (erep"ire# () " u// encirc/e*ent e/#e# sp/it s/eeve

a. A longitudinal crac"

b. A circumferential crac"c. (its that are one half through walld. 6eneral corrosion in the longitudinal direction

117. I " rep"ir "re" is /oc"/ie# >or eC"*p/e$ pittin' or pinho/es@ "n# thespeciie# *ini*u* )ie/# stren'th >S6YS@ o the pipe is not *ore th"n

psi$ " te*por"r) rep"ir *") (e *"#e () i//et e/#in' "proper/) #esi'ne# p/"te p"tch over the pitte# "re"

a. 7+#+++ psib. ))#+++ psic. 8+#+++ psid. 79#+++ psi

$or fillet welding it is 8+#+++ psi# for low strength bolting it is 7+ "si Efor class 1)+ andclass 7++F

118. Insert p"tches >/ush p"tches@ *") (e use# to rep"ir #"*"'e# or corro#e#"re"s o pipe i sever"/ re3uire*ents "re *et. One o these is th"t "n insertp"tch >/ush p"tch@ *") (e o "n) sh"pe (ut it sh"// h"ve roun#e# corners ith

*ini*u* r"#iia. +.7*);b. +.)+;c. +.*);d. 1;

114. An inspector in#s " pinho/e /e"? in " e/# #urin' "n onstre"* inspectiono " pipin' s)ste*. A per*issi(/e te*por"r) rep"ir is

a. The use of plastic steel to seal off the lea"b. Driving a wooden plug into the holec. 0crewing a self tapping screw into the holed. The installation of a properly designed and fabricated bolted lea" clamp

A(I )*+ DA 1 (age /@




1%0. e*por"r) /e"? se"/in' "n# /e"? #issip"tin' #evices sh"// (e re*ove# "n#the pipe restore# to ori'in"/ inte'rit)

a. As soon as the piping system can be safely removed from serviceb. At a turnaround or other appropriate timec. 'hen the lea" seal and lea" dissipating device ceases to wor"d. As soon as possible H must be done on a safe# emergency shut!down basis

1%1. -hich o the o//oin' is O "n ite* or consi#er"tion () "n inspectorhen " /e"? se"/in' /ui# >;pu*pin'”@ is use# or " te*por"r) /e"? se"/ rep"ir

a. 4onsider the compatibility of the sealant with the lea"ing materialb. 4onsider the pumping pressure on the clamp Eespecially when re!pumpingFc. 4onsider the pressure testing of the piping in questiond. 4onsider the number of times the seal area is re!pumped

1%%. An) e/#in' con#ucte# on pipin' co*ponents in oper"tion *ust (e #onein "ccor#"nce itha. -$(A *+8b. A(I 0tandard )1+c. A03% <71.7d. A(I (ublication//+1

1%,. A// rep"ir "n# "/ter"tion e/#in' to pipin' s)ste*s sh"// (e #one in"ccor#"nce ith the

a. %xact procedures of A03% <71.7 or to the code to which it was builtb. 0tandards of A03% <71.7 or the code to which it was builtc. (rinciples of A03% <71.7 or the code to which it was builtd. Ideals of A03% #-<I4# or A(I standards

1%!. -e/#ers "n# e/#in' proce#ure use# in *"?in' pipin' rep"irs$ etc sh"// (e3u"/iie# in "ccor#"nce ith

a. A03% <71.7 or the code to which the piping was builtb. -<I4 or the system to which the piping was builtc. -A4% or the method to which the piping was builtd. A0T3 or the law to which the piping was built

1%5. he rep"ir or'"nis"tion responsi(/e or e/#in' sh"// *"int"in recor#s oe/#in' proce#ures "n# e/#er peror*"nce 3u"/iic"tions. hese recor#ssh"// (e "v"i/"(/e to the inspector

a. At the end of the obb. After the start of weldingc. $ollowing the start of weldingd. <efore the start of welding

A(I )*+ DA 1 (age /




1,,. Accept"nce o " e/#e# rep"ir or "/ter"tion sh"// inc/u#e in"ccor#"nce ith the "pp/ic"(/e co#e "n# the oneruserJs speciic"tion$

un/ess otherise speciie# in API 570a. -ominal pragmatic siBing E-(0Fb. -<%c. 0afeguardsd. -on!destructive examination

1,!. Ater e/#in' is co*p/ete# on " rep"ir or "/ter"tion$ in"ccor#"nce ith API 570 sh"// (e peror*e# i pr"ctic"/ "n# #ee*e# necess"r)() the inspector

a. -(0b. 0afety sanctionsc. -<%

d. A pressure test

1,5. -hen " pressure tests nor*"//) re3uire#a. (ressure test normally required after alteration and any repair b. (ressure test normally required after alteration and maor repairsc. (ressure test normally required after maor and minor repairsd. (ressure test normally required only as specified by the owner!user

1,2. -hen " pressure test is not necess"r) or pr"ctic"/$ h"t sh"// (e uti/ise# in/ieu o " pressure test

a. -(0b. -on!destructive examinationc. acuum visual examinationd. -<%

1,7. Speci"/ proce#ures in p/"ce o " pressure test "ter "n "/ter"tion or rep"ir*") (e #one on/) "ter consu/t"tion ith+

a. The operations and repair organisationb. The inspector and the piping engineer c. The urisdictiond. The examiner and the inspector

A(I )*+ DA 1 (age 71




1,8. -hen it is not pr"ctic"/ to peror* " pressure test or " in"/ c/osure e/#th"t Eoins " ne or rep/"ce*ent section o pipin' to "n eCistin' s)ste*$

sever"/ re3uire*ents sh"// (e s"tisie#. -hich o the o//oin' is O one othe re3uire*entsa. The closure weld is a full!penetration fillet weld between a weld nec" flange

and standard piping component or straight sections of pipe of equal diameterand thic"ness# axially aligned or equivalent materials. $or design cases up!to4lass 1)+ and )++ $# slip on flanges are acceptable alternates.

b. 3T or (T shall be performed on the root pass and the completed butt weld.$illet weld must have (T?3T on the completed weld.

c. The new or replacement piping is pressure tested.d. Any final closure butt weld shall be of 1++J radiographic quality# or angle

beam T may be used# provided the appropriate acceptance criteria isestablished.

There is no full penetration fillet weld

1,4. -hich o the o//oin' is O " re3uire*ent or rer"tin' " pipin' s)ste*() ch"n'in' the te*per"ture or the 6A-P +

a. The existing pressure reliving devices are still in place and set as they whereoriginally.

b. 4alculations are performed by the piping engineer or the inspector.c. (iping flexibility is adequate for design temperature changes.d. A decrease in minimum operating temperature is ustified by impact test

results# if required by the applicable code.

1!0. -h) is the inspector o (urie# process pipin' >not re'u/"te# () DO@#ierent ro* other process pipin' inspection

a. The insulating effect of the soil increases the possibility of more internalcombustion

b. Internal corrosion has to be controlled by cathodic protectionc. 0ignificant external deterioration can be caused by corrosive soil conditionsd. Internal corrosion must be controlled by internal coating0o# Old (& should be changed

1!1. In#ic"tions o /e"?s in (urie# pipin' *") inc/u#e sever"/ in#ic"tions. -hicho the ones /iste# (e//o is O one o the in#ic"tions

a. A change in surface contour of the groundb. 'ater standing on the pipeline right!of!wayc. Discoloration of the soild. -otice odour

A(I )*+ DA 1 (age 7/




1!%. orrosion ce//s c"n or* on (oth ("re "n# co"te# pipe here ("re stee/cont"cts the soi/. &o c"n the ce//s (e #etecte#

a. &un an acoustic emission test on the pipingb. isually survey the route of buried pipingc. The potential at the area of corrosion will be measurable different than other

areas and a close!interval potential survey can detect the location ofcorrosion

d. &un an interval survey of the piping using a video camera

1!,. A pipe co"tin' ho/i#") surve) is use# to /oc"te co"tin' #eects on co"te#pipes. It c"n (e use# on ne/) constructe# pipe s)ste*s to ensure th"t theco"tin' is int"ct "n# ho/i#")ree. 6ore oten$ it is use# in (urie# pipes to +

a. 0how the measurable differences in electrical potential in corroded areasb. %valuate coating serviceability for buried piping that has been in!service for a

long time.c. Determine depth of piping for resistivity testingd. %valuate the cathodic protection components of the underground pipe.

1!!. "tho#ic"//) protecte# (urie# pipin' shou/# (e *onitore# to "ssure "#e3u"te /eve/s o protection.

a. regularlyb. intermittentlyc. erraticallyd. frequently

1!5. I "n inte//i'ent pi''in' s)ste* is use# to inspect (urie# pipin'$ h"t t)peso (en#s "re usu"//) re3uire# in the pipin' s)ste*

a. $ive diameter bendsb. + degree pipe ellsc. Ten diameter bendsd. Three diameter bends

1!2. &o oten shou/# "(ove'r"#e visu"/ survei//"nce o " (urie# pipe/ineri'hto") (e *"#e

a. Once a monthb. Approximately 9 months intervalsc. Once a year d. Once every 7 months

1!7. &o oten shou/# poor/) co"te# pipes ith inconsistent c"tho#icprotection potenti"/s h"ve " pipetosoi/ potenti"/ surve) *"#e

a. earlyb. %very / yearsc. %very ) yearsd. %very * years

$or fully cathodically protected it is annual

A(I )*+ DA 1 (age 77




1!8. On (urie# pipin'$ h"t is the re3uenc) o pipe co"tin' ho/i#") surve)s

a. The frequency is governed by the lea" test interval of the pipeb. It is usually based on indication that other forms of corrosion control areineffective.

c. 0urveys are normally made every ) yearsd. (ipe coating holiday surveys are made when the pipe is excavated.

1!4. For " pipin' (urie# in /en'ths 're"ter th"n eet "n# notc"tho#ic"//) protecte#$ ev"/u"tion o soi/ corrosivit) shou/# (e peror*e# "t 5)e"rs interv"/.

a. )+b. *)c. 1++

d. 1)+

150. I (urie# pipin' is c"tho#ic"//) protecte#$ the s)ste* shou/# (e *onitore#"t interv"/s in "ccor#"nce ith section 10 o A: <P0124 or section 40 o API<P 251. API <P 251 speciies interv"/.

a. Annualb. <iannualc. <ienniald. Trennial

151. Burie# eCc"v"tion o (urie# pipin'$ i inspection reve"/s #"*"'e# co"tin'or corro#e# pipin'

a. % to !b. ! to 2c. 2 to 8d. 8 to 10

15%. Ater eCc"v"tion o (urie# pipin'$ i inspection reve"/s #"*"'e# co"tin' orcorro#e# pipin'+

a. The condition should be noted in the records and the inspection intervalshortened.

b. The complete piping system should be day!lighted EexcavatedF for repair orreplacement

c. The damaged coating or corroded piping must be repaired or replacedd. Additional piping shall be excavated until the extent of the condition is

identified.

15,. I (urie# pipin' is cont"ine# insi#e " c"sin' pipe$ the c"sin' shou/# (e+a. 4apable of carrying the same pressure as the product pipe.b. 4hec"ed to see if its protective coating is intact and serviceablec. (ressure tested to ma"e sure it is serviceable.d. Inspected to determine if water and ? or soil has entered the casting.

15!. An "/tern"tive or supp/e*ent to inspection o (urie# pipin' is /e"? testin'ith /i3ui# "t " pressure "t /e"st H 're"ter th"n the *"Ci*u*

A(I )*+ DA 1 (age 78




oper"tin' pressure "t interv"/s the /en'th o those shon in t"(/e 41 o API570 or pipin' O c"tho#ic"//) protecte# "n# "t the s"*e interv"/s shon in

"(/e 41 or c"tho#ic"//) protecte# pipin'.a. )b. 1+c. /)d. )+

155. he /e"? testin' o (urie# pipin' shou/# (e or " perio# o hours

a. 8b. @c. 1/d. /8

152. he /e"? test or 8” #i"*eter (urie# pipin' s)ste* is ,00 psi. Ater 7 hours$the pressure re"cts %7, psi. -h"t shou/# the inspector #o

a. -othing is required. The loss of pressure is negligible and will not affect thetest. The loss can be disregarded.

b. The system should be re!pressuriBed to the original lea" test pressure andthe test should begin again.

c. The test chart and the temperature should be reviewed to determine if anychange in temperature caused the pressure drop.

d. The piping should be visually inspected externally and ? or inspectedinternally to find the lea" and assess the extent of corrosion.

157. A (urie# pipin' s)ste* th"t is not c"tho#ic"//) protecte# h"s to h"ve "ninspection interv"/ set. he soi/ resistivit) is chec?e# "n# oun# to (e ,!00oh*9c*. As the inspector$ h"t interv"/ ou/# )ou set

a. /.) yearsb. *.) yearsc. ) yearsd. 1+ years

158. Burie# pipin' "/so *") (e surve)e# or inte'rit) () re*ovin' the /ine ro*service "n# peror*in' " /e"? test. his inspection *etho# t)pic"//) invo/vespressurin' the /ine ith " "//oin' ti*e or the to #iuse to the sur"ce "n# surve)in' the (urie# /ine ith " '"s speciic#etector to #etect the .

a. Tracer gas Esuch as helium or sulphur hexafluorideFb. 5ight hydrocarbon Esuch as butaneFc. 0mo"e type material Esuch as chemical smo"eFd. 'ater vapor E such as steamF

A(I )*+ DA 1 (age 7)




154. <ep"irs to co"tin' on (urie# pipin' *") (e teste# usin'a. A low voltage holiday detector

b. 5ight taps with an inspection hammer c. A flaw indicator fluidd. A high!voltage holiday detector

120. I (urie# pipin' /e"?s "re c/"*pe# "n# re(urie#+a. -o further action is required unless the piping lea"s againb. The date of installation shall be mar"ed on the clamp for future identificationc. A record of the location and the date of installation shall be maintainedd. The clamped line shall be lea" tested

121. A 10” #i"*eter pipin' s)ste* ith !” #i"*eter 2” "n# #i"*eter reinorce#(r"nch connection is to h"ve ch"n'es *"#e to it. -hich o the o//oin' is

consi#ere# "n "/ter"tiona. A new 1; diameter un!reinforced nipple is installedb. A new @; diameter reinforced branch connection is installedc. A new 8; diameter reinforced branch connection is installedd. A new 7; diameter reinforced branch connection is installed

<elow /; H so no# they existing branch is 8; and 9; so alteration is for only above 9 in

12%. -hich o the o//oin' ou/# not (e c/"ssiie# "s "n "pp/ic"(/e co#e tohich " pipin' s)ste* "s (ui/t

a. A03% < 71.7b. A03% <71.1c. A03% <71.1!1))# 0ection 7d. A03% A!/+

12,. -hich o the inspection "'encies /iste# (e/o is O "n AuthorisedInspection Agency "s #eine# in API 570

a. Curisdictional inspection organiBationb. Owner!user inspection organiBationc. A0T3 inspection organiBationd. Independent inspection organiBation

12!. An "uthorise# pipin' inspector is "n e*p/o)ee o "n "uthorise# inspection"'enc) ho is 3u"/iie# to peror* the unctions speciie# in API 570. -hichin#ivi#u"/ /iste# is O usu"//) "n authorized piping inspector

a. An owner!user inspector b. A urisdictional inspector c. An -D% examiner d. An insurance inspector

A(I )*+ DA 1 (age 79




125. -hich o the o//oin' 3u"/iies "s "uCi/i"r) pipin'a. control valve manifolds

b. bypass lines around exchangersc. pump seal oil lines# drains# vents# flush lines# analyBer linesd. orifice runs

Definition of auxiliary pipe it is a small bore secondary process piping that can beisolated from the primary process piping example. 0eal oil line# flush lines# analyBerlines# balance lines# buffer gas lines# drains# vents# instruments and machinery pipinglines. <ut control valve piping does not come in this category

0econdary process piping H small bore piping Eless than /; down stream of normallyclosed bloc" valves

122. GI st"n#s or+

a. 4ontrol unit inspector b. 4orrosion under insulationc. 4orrected unobtrusive insertsd. 4orroded underground installation

127. De"# /e's /e' o " pipin' s)ste* "re+a. The upstream piping of a control valve manifoldsb. 0upports attached to a pipeline that has no product in themc. The upstream part of an orifice runsd. 0ection that normally have no significant flow

128. A #eect is "n i*perection o " t)pe or *"'nitu#e eCcee#in' the criteri"

a. -on!specificb. Imprecisec. 6enerald. Acceptable

124. he #esi'n te*per"ture o " pipin' s)ste* co*ponent is the te*per"ture"t hich un#er the coinci#ent pressure$ the is re3uire#.

a. smallest thic"ness or highest component ratingb. greatest thic"ness or highest component ratingc. maximum thic"ness or lowest component ratingd. minimum thic"ness or minimum component rating

Design temperature is the temperature at a particular pressure for highest thic"ness andhighest component rating.

170. An eC"*iner is " person ho the inspector a. 0upplantsb. Assistsc. 0upervisesd. Directs

171. &o/# point is " point in the rep"ir or "/ter"tion process (e)on# hich or?*") not procee# unti/ the h"s (een peror*e# "n# #ocu*ente#

A(I )*+ DA 1 (age 7*




a. (',T requiredb. &equired inspection

c. &T requiredd. ltra sonic testing

17%. -h"t is i*perectiona. It is a flaw or discontinuity noted during inspection that may be subect to

acceptance criteria.b. It is a defect noted during inspection that is unacceptablec. It is a weld flaw noted during an inspection that may be subect to repair d. It is a blemish that is only cosmetic and acceptable under all condition

17,. is " response or evi#ence resu/tin' ro* the "pp/ic"tion o "non#estructive ev"/u"tion techni3ue.

a. Indicationb. Imperfectionc. <reachd. Division

17!. -h"t "re points here ch/orine is intro#uce# in reor*ers$ "ter is "##e#in overhe"# s)ste*s$ etc c"//e#

a. primary process pointsb. level bridle pointsc. inection pointsd. test points

175. -h"t is the /oss o #ucti/it) "n# notch tou'hness in suscepti(/e /o"//o)

stee/s such "s 1.%5 "n# %.5 r$ #ue to pro/on'e# eCposure to hi'hte*per"tureservice c"//e#

a. 4reepb. Temper embrittlementc. Incipient meltingd. 6raphitiBation

172. Secon#"r) process pipin' is s*"//(ore >/ess th"n or e3u"/ to @ process pipin' #onstre"* o nor*"//) c/ose# (/oc? v"/ves

a. -(0 Nb. -(0 1c. -(0 /

d. -(0 7

A(I )*+ DA 1 (age 7@




177. A test point is "n "re" #eine# () " circ/e h"vin' " #i"*eter not 're"terth"n inches or " /ine #i"*eter not eCcee#in' 10 inches or not

're"ter th"n inches or /"r'er /ines.a. 7#8b. /#7c. 1#/d. N# 1

178. -hen *"?in' rep"ir uti/iin' " e/#e# u// encirc/e*ent rep"ir s/eeve*"teri"/ is #ierent ro* the pipe *"teri"/$ )ou shou/#

a. 4onsult the piping engineer b. se a weld rod matching the higher strength materialc. se a weld rod matching the lower strength materiald. se an alloy weld rod such as Inco!A

174. -h"t t)pe o e/ectro#e shou/# (e use# hen e/#in' " u// encirc/e*entrep"ir s/eeve

a. 5ow!hydrogen electrodeb. 5ow!phosphorous electrodec. 5ow!chrome electroded. 5ow!nitrogen electrode

180. -hich o the o//oin' e/#in' e/ectro#es is /oh)#ro'ena. %9+1+b. %*+19c. %*+11d. %*+18

181. -hen e/#in' " s*"// rep"ir p"tch$ the #i"*eter o the e/ectro#e use#shou/# not eCcee#+

a. 1?@;b. 7?19;c. )?7/;d. 1?8;

A(I )*+ DA 1 (age 7




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A(I )*+ DA 1 (age 8+




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A(I )*+ DA 1 (age 81




DAY 1 API 570 OP: BOOK =B

1. he o//oin' #"t" is presente# or " c/"ss % pipe$hic?ness L 0.,2 inch >"ter inspection@orrosion r"te L 10 *p)<e*"inin' /ie L 12 )e"rs

-hen is the neCt thic?ness *e"sure*ent inspection #ue

a. After @ yearsb. After ) yearsc. After 1+ yearsd. -one of the above

%. P/e"se c"/cu/"te re*"inin' corrosion "//o"nce or pipin' in =uestion 1"(ove.a. +./+ inchb. +./@ inchc. +.1/ inchd. +.19 inch

,. -hen i// (e the neCt inspection sche#u/e ro* no on or eCtern"/inspection or pipe in =.1

a. 1+ yearsb. @ yearsc. ) yearsd. none of the above

!. he pipe in =.1 "(ove h"s "n insu/"te# "re" o %00 s3. t.$ hich iseCpose# to suscepti(/e te*per"ture "n# *ist spr") o coo/in' toer.Accor#in' to API 570$ ho *uch o *ini*u* "re" is reco**en#e# orD surve) or GI #urin' eCtern"/ inspection

a. 1++ square feetb. )+ square feetc. 99 square feetd. )+ square feet

5. For pipin' (urie# in soi/ ith resistivit) o 5000oh* c* "n# notc"tho#ic"//) protecte#$ ev"/u"tions o pipe thic?ness shou/# (eperor*e# "t+

a. 1+ year intervalb. ) year intervalc. 7 year intervald. -one of the above

A(I )*+ DA 1 (age 87




11.-hich o the o//oin' /ui# services or c/"sses o pipin' "re eCc/u#e#ro* the speciic re3uire*ents o API 570

a. ,aBardous fluid services below threshold limits defined by urisdictionalrequirements

b. (iping or tubing with an outside diameter not exceeding that of -(0 ;c. -on!metallic piping and polymeric or glass!lined pipingd. All of the above

1%.he reco**en#e# #onstre"* /i*it o circuit o "n inEection point is "*ini*u* o+

a. 0econd change in flow direction past the inection point# or /) feetbeyond the first change in flow direction whichever is less

b. 0econd change in flow direction past the inection point# or /) feetbeyond the first change in flow direction whichever is greater

c. 0econd change in flow direction past the inection point# or /) inchesbeyond the first change in flow direction whichever is less

d. 0econd change in flow direction past the inection point# or /) inchesbeyond the first change in flow direction whichever is greater

1,.5.4 As per API 570$ in c"se o nor*"/ unior* corrosion$ co*p"re# toother pipin'. he thic?ness *e"sure*ents on v"/ves+

a. 3ust be routinely ta"en at same frequency while inspecting# otherpiping components as valve thic"ness is less than other pipingcomponents

b. 3ust be routinely ta"en at twice the frequency as other piping

components as valves are very critical components and essential forreliable operation.

c. Are not routinely ta"en unless unusual corrosion pattern and thinning isobserved during servicing and repair.

d. Are routinely at twice the frequency of other components becausevalves are more expensive items compared to rest of the piping andmust be more frequently chec"ed.

1!.An ei'htinch #i"*eter pipin' s)ste* is inst"//e# in Dece*(er 1474.heinst"//e# thic?ness is *e"sure# "s 0.,!”. he *ini*u* thic?ness o thepipe is 0.%0”. It is inspecte# in Dec98, "n# the thic?ness is oun# to (e

0.,%”. An inspection Dec987 reve"/s " /oss o 0.01” ro* the 1%985inspection "s #urin' Dec984 the thic?ness "s oun# to (e 0.%4”. he/"st inspection "s #urin' Dec945 "n# the thic?ness "s oun# to (e0.%2”. -h"t is the /on'ter* corrosion r"te o this s)ste*

a. +.++);?year b. +.++*);?year c. +.++7*);?year d. +.++/);?year

A(I )*+ DA 1 (age 8)




15.Gsin' the inor*"tion in 3uestion "(ove$ c"/cu/"te the shortter*corrosion r"te.

a. +.++); ? year b. +.++*); ? year c. +.++7*); ? year d. +.++/); ? year

12.Gsin' the shortter* corrosion r"te in 3uestions "(ove$ #eter*ine there*"inin' /ie o the s)ste*.

a. 1@ yearsb. 1) yearsc. 1/ yearsd. -one of the above

17.8.%.%.1 Prehe"tin' to not /ess th"n #e'rees F *") (econsi#ere# "s "n "/tern"tive to post e/# he"t tre"t*ent or "/ter"tionsor rep"irs o P1$ pipin' initi"//) post e/# he"t tre"te# "s " co#ere3uire*ent >*") not (e use# i the pipin' "s post e/# he"t tre"te##ue to environ*ent"/ cr"c?in' prevention@

a. 1)+b. /++c. 7++d. 7)+

18.I "n ;inte//i'ent pi''in'” s)ste* is use# to inspect (urie# pipin'$ h"tt)pe o (en#s is usu"//) re3uire# in the pipin' s)ste*a. $ive diameter bendsb. + degree pipe ellsc. Ten diameter bendsd. Three diameter bends

14.&o oten shou/# poor/) co"te# pipes ith inconsistent c"tho#icprotection potenti"/s h"ve " pipetosoi/ potenti"/ surve) *"#e

a. earlyb. %very / yearsc. %very ) yearsd. %very * years

A(I )*+ DA 1 (age 89




%!.-h"t is the inspection interv"/ or (urie# pipin' ithout c"tho#icprotection$ i the soi/ resistivit) is 2$500 oh*c*

a. 1+ yearsb. 1) yearsc. ) yearsd. 'henever a lea" is suspected

%5.A pipin' s)ste* th"t oper"tes "t " #esi'n pressure o 100 psi "t 450F"s ori'in"//) (ui/t ro* PS %0 :F- >100H r"#io'r"phe#@$ inch "//$A512 r"#e 70$ A271 *"teri"/. Durin' the /"st inspection$ the thic?ness"s #eter*ine# to (e .,70 inches. he recor#s in#ic"te# the corrosionr"te to (e .004 inches per )e"r. -h"t is the 6A-P i the neCt inspectionis p/"nne# in 5 )e"rs

a. 1/9 psib. /@).1* psic. @./7 psid. -ot enough information given

A(I )*+ DA 1 (age 8@




DAY 1 API 570 OP: BOOK =B

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A(I )*+ DA 1 (age 8




API 570

PIPI ISP:IO OD:$ IS$ <:PAI<$ A:<AIO N <:<AI OFISP:IO

• A(I new edition may be used beginning with the date of issuing but it be comes

immediately after six month from the date of issuance.

• During the six months time# uses shall specify to which addition# agenda the

equipment is to be rerated G inspected.

• $or 71.7 the above requirement is applicable unless a specific agreement between

contracts parties to use another addition or agenda.

• A(I!)*+ is applicable for repair# alteration and re rating of 6:AI PIPI that are

I IS:<I:.

• It is developed for petroleum refining G chemical process industries# may be usedwhere practical for other piping system.

• It is intended for use by organiBations that maintain Inspection department# repair

capabilities# qualified (iping %ngineer# Inspector G %xaminers.

• It shall not be used as a substitute for the original construction requirements

governing a piping system before it is placed in service.

• $luid service li"e water Eincluding fire protection systemF steam# steam!condensate#

<oiler feed water G category DJ fluid service are :QGD:D from A(I )*+.

• $ollowing class of piping system are excluded P

o (iping on Truc"#barg# other mobile equipment Emovable structureF

o (iping on pump# compressors# turbines# generators# %ngine G ,ydraulic or

(neumatic cylinder EIntegral part of componentFo Internal piping of fired heaters boilers# tubes# tube header.

o Internal piping G %xternal connection of pressure vessels etc.

o (lumbing# sanitary sources# process wor" server# storm sources.

o (iping or tubing outside water that of -(0 1?/; E1?/;F.

o -on metallic piping# polymeric or glass line piping.

• A(I!&(!)*! $itness for service Eprovide generate requirements and detailed

assessment procedure for specific types of degradation.

• (ubl //+1! ,ot!tapping procedure.

• A(I!&(!)*8! Inspection of piping system components.

• A(I!&(!)*@! 3aterial verification program.

•

AuthoriBed Inspection Agencies Po Owner or ser

o 4ontractor to owner.

o 6ovt Curisdiction.

o 6ovt approved agency

o Insurance.

• Auxiliary piping! Instrument G machinery piping li"e small bore piping exP $lush line#

0eal oil lines# analyBer line# drain * vents etc.

• 4I! 4orrosion under insulation.

A(I )*+ DA 1 (age )+




• Dead legs! no significant flow H spare pump piping# control valve by pass lines# level

bridle# relief valve inlet G outlet# height point vents# sample points# drains# bleeders#

instrument connections.• ,old point! wor" may not proceed until inspection done.

• Inection pointP 5ocations where two process stream oining are not considered as

inection point E3ixing TeesF.%xample of Inection pointsP 4hlorine in re!formers# (olysulfide in 4atalytic crac"ingwet gas# Antifoam inections# and Inhibitors neutraliBers.

• -(0K -ominal pipe siBe# specific siBe designation without an inch symbol.

• (iping circuitP 0ection of piping that has all points exposed to an environment of

similar corrosivity# design condition G 4onstruction material.

• (iping systemK Assembly of interconnected piping that is subected to the same set

of design condition.

• (rimary process pipingP In normal active service that can not be isolated greater than

/; -(0.

• &eratingP A change in design temp or 3A'( of piping system may consists of an

increase# decrease or a combination of both Derating below original design conditionis a means to provide increased corrosion allowance.

• 0oil to air E0?AF Interface P 4orrosion will vary depending on factors such as moisture#

oxygen content in the soil G operating temp. Uone in 9; above 1/; below the soil9?1/.

• Temperature embrittlementP 5oss of ductility G notch toughness in low alloy steels

>1R r %R r@ due to prolonged exposure to high temp service >,70M575M@.

• Test point P Area defined by circle %”#i" upto 10” pipe /ine$ ,” #i" "(ove 10JJ pipe

/ine.

• 3aterial verification program P (rocedure used to assess metallic alloy materials.

• (3I TestingP physical evaluation or test of material.

Section A

• AuthoriBed Inspector DutiesP

• Determine that the requirements of A(I )*+ on inspection# examination G testing are

met.

• Directly involved in the inspection activities.

• All examination results shall be evaluated G accepted by the AuthoriBed Inspection.

A(I )*+ DA 1 (age )1




• 4.0 piping normally in!service X than /)+$ but intermitted

• 00 piping operating between 1)+$ to 8++$

• 4.0 piping above /)+$ no problems of 4I• 00 piping below 1)+$ and above 8++$ no problem of 4I

• 0oil to air interface E0?AFP if buried piping uncoated at the grade# consideration should

be given to excavating 9; to 1/; E1)+ mm to 7)+mmF deep.

• %rosion can be characteriBes by grooves# rounded holes# waves and valleys in a

directional pattern. It usually occurs in areas of turbulent flow change of flowdirection# control valve down stream where vaporiBation occurs.

• Due to high velocity flowing of solid or liquid will increase erosion danger.

• elocity sensitive system are hydro sulphide G 0ulfuric Acid.

• %nvironment crac"ingP polythionic acid 044 of sanitiBed austenitic alloy steel# caustic

in carbon steel amine 044 in piping not (',T

• 4orrosion under lining coatingP separation# brea"s# holes and blisters and noted#than lining should be remove

o <ulging or separation in refractory lining is an indication of corrosion.

• $atigue crac"ingP due to cyclic stress may be improved pressure# mechanical or

thermal means# low cycle fatigue H heat up or cold down# high cycle H vibration

• 4reep crac"ing P It is depended on time# temperature and stress brittle fractureP 4.0.#

low alloy and ferritic steel# are susceptable to brittle failure. It is not an concern withrelatively thin wall piping. 0pecial attention to low alloy steel E/S; 4& H 1 3O

materialF there are prone to temper embrittlement

• $reeBe damage

• Thic"ness measurement method pipe larger than (30 1; H T is preferred less

than 1 (30 preferred 'hen T is surface 1)+$ should be careful

Fre3uenc) "n# eCten#s o inspection

• The frequency and extents of inspection depends on the form of degradation. It

affect the piping and consequence of the piping failure

• &ecommended maximum intervals are given in table 9!1 should not be increase

when &<I assessment is made

• 4lass H 1 pipingP Immediate emergency of a lea" occurs.

o $lammable services

o (ressuriBed services that may rapidly vaporiBe

o ,ydrogen sulphide E,/0F greater than 7J in a gaseous stream

o An hydrous hydrogen chlorideo ,ydro fluoric acid

o (iping through public through ways and over water

• 4lass H / P maority of unit process piping and selected off site piping

o ,ydro carbons that will slowly vaporiBe

o ,ydrogen# fuel gas and natural gas

o 0trong acid and caustics Eon siteF

• 4lass H 7 P $lammable but do not significantly vaporiBe and not located at high

affectivity areas.

A(I )*+ DA 1 (age )7




o ,ydrogen that will not significantly vaporiBe

o Distillate and product line

o Offsite acids and caustics.o

ETable H 9!1F3ax Inspection Intervals

45A00 T,> I-0( %2T I0A51 ) )/ 1+ )7 1+ 1+

Inection (oint 7 by class0?A Interface by class

4T Inspection %2T%-T45A00 -D% $ollow up or I-05

&emoval at a damaged areas-D% AT 0urface area

piping with succeptabletemp

1 *)J )+J/ )+J 77J7 /+J 1+J

Section 7 <e*"inin' /ie c"/cu/"tion+

&5 Q tact H treq ? 4.& Emm?yearF

Q &emaining 4A ? 4.&

4.& E5TF Q t initial ! t actual ? ear between ti G ta

4.& E 0T F Q t prev ! t actual ? ear between tp H ta

4.& Q 3etal loss over a period ? (eriods in years.

'here

tact Q actual thic"ness at the time of inspectiontreq Q required thic"ness computed by the design formula before 4.A G 3anu facttolerance adds.

'hen 3A'( is recalculated the max thic"ness to be considers is P actual thic"nessminimum twice the estimated corrosion loss before the date of inspection.

A(I )*+ DA 1 (age )8




• 'elding# welder qualification# welding procedure shall be as per A03% <71.7

preheating to 7++$ may be considered for the alteration and repaired building. This

will be applicable only when (',T is code requirement. This is not applicable if(',T is a service requirement.

• The above is applicable to (1 and (7 Ewith explanation of 3n H 3o 0teelF

• After welding the oint should immediately be covered with insulation of slow cooling

rate.

• (ressure test is normally required after alternation or repair. 'hen it is not necessary

of (ractical -D% shall be utiliBed in lieu of pressure test.

Section 4+ Burie# Pipin'

• Indications of lea"s in <uried piping change in the surface contour of the ground#

discoloration of the soil softening of paving asphalt# poor formation# bubbling waterpuddle# noticeable odor.

• Above grade visual surveillance ! %very 9 months.

• 4lose H Interval potential survey ! %very ) years

• 5ower soil resistivity is more corrosive

• 3easurement of soil resistivity 'enner four pin method as per A0T3 ! 6)*# the

soild bar Ea!c bridgesF# the soil box.

• A(I &( 9)1 for inspecting and maintaining cathodic protection system for buried

piping.

• (igging will give the wall thic"ness measurement.

• <y excavation pipe length 9 feet H @ feet should be inspected.

$requency of Inspection of buried piping without effective cathodicprotection Eby excavationF

0oil &esistivity Eohm!emF Insp. Intervals EyearsF /+++ )

/+++ to 1++++ 1+X 1++++ 1)

• 5ea" testing an alterative or supplement to inspection

o (ressure 1+J higher than maximum operating pressure in the above table

o the length of period interval for piping not cathodically protected

o 0ame interval for piping cathodically protectedo 5ea" test shall be maintained for @ hours

o 8 hours after initial pressuriBation# the pressure should be noted and if

necessary increase up to original test pressure# isolate the line from pressure.

1. api 570 bench mark quiz (1-55)

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