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Here are the answers , if any one has different opinion or idea share with me.1. Can you explain

in detail three or more major differences between code ANSI !1.1 and code ANSI!1.!"

Answer# $here is only one major difference between the two, !1.1 is for %ower %ipin& and

!1.! is for'efinery(Chemical %lant %ipin&.). $here is a power plant inside a %rocess refinery.

*here exactly the ANSI !1.1 + ANSI !1.! scopebrea occurs"Answer# ased on my

experience there were two cases. Case -1, !1.1 stopped at the %ower %lant nitbloc /al/es.

$hus all pipin& inside the %ower %lant was !1.1. Case -), !1.1 stopped at thee0uipmentoiler2 isolation bloc /al/es and then all other pipin& was !1.!. $his is normally

the choice of theowner(operator(client.!.

*hich of the followin& pipin& system is more health ha3ardous. A2 4uel oil pipin& b2 %rocess pipin&with Caustic c2 process pipin& with H4 acid d2 Sulphuric acid pipin&.

Answer# c2 process pipin& with H4 acid5.

$here is a steam pipin& with low pocet but without steam trap. *hat will be worst conse0uence

of this layout"Answer# $here will be a build up of condensate to the point that a slu& will be pushed by the steam flow.

$his slu& of condensate will cause 6water hammer7 and could rip the pipin& apart

.8. In what circumstance, the reducer of a pump suction pipin& will be in bottom flat position.

9xplainwhy the reducer should be so.

Answer# Still Needs a %roper 9xplanation for the this answer.:. A %+I; shows a spec breaat 4lan&e2 between carbon steel + stainless steel specification.

*hatadditional arran&ements you ha/e to mae for that dissimilar material flan&e joint"Answer#

se the

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1@. 9xplain what is a 6;ouble bloc + leed7 /al/e" *hy we need a bleed /al/e" *hen do we

use this"

 Answer# $he primary purpose of a 6;ouble loc + leed7 is Safety. Howe/er i

t is not fail safe. $he next

 better 6Safety7 setDup would be ;ouble loc Eal/e with a Spec lind between the /al/es. $he hi&herle/el of

safety would be double bloc /al/es with a remo/able spool for absolute isolation.11. In a

typical tieDin where should the spectacle blind be inserted" a2 after bloc /al/e andtowardsexistin& plant b2 before bloc /al/e and towards new plant. 9xplain why.Answer# $he

Spec lind shall be placed on the nit side of the nit loc /al/es. $his placement allowsfor

the closin& of the nit isolation bloc /al/e, the unit side is depressured and drained. $hen the

specblind can be installed for isolation of the unit.1). 6Stress intensification factor SI427 *here do we use this" 9xplain this term. How many

types of

these SI4

Fs exist" Answer# Stress Intensification 4actor SI42 is a multiplier on nominal stress for typically bend

andintersection components so that the effect of &eometry and weldin& can be considered in a beamanalysis. Stress Intensification 4actors form the basis of most stress analysis of pipin&

systems. As for the0uantity, as a Stress 9n&ineer.1!. *hen all desi&n parameters are same,

whose thermal expansion is hi&her amon& the followin&" A2Carbon steel b2 Stainless steel c2;uplex steel d2 Cast Iron e2

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 bloc /al/e with a dropDout spool.ption -), ;ouble bloc /al/e with a spec blind.ption -!,

double bloc /al/es with a bleed /al/e.1. A air fin cooler ) air coolers with each ha/in& ) inlet

no33les2 needs a $ypical pipin& arran&ement.How many types of pipin& arran&ement is possible.Answer# $here are a number of ways to pipe a 4inD4an cooler dependin& on what the

%+I; call for"

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