M

-17 -- PR

OP

EL

LE

R

------------------------------------------------------------------------------------------------------------------- 1- T

hru

st and

camb

er faces of a p

rop

eller sho

uld

be b

lended

out to

a) 5 tim

es the d

epth

of d

amag

e b

) 10 times to

the d

epth o

f dam

age

* c) 30 times to

the d

epth

of d

amag

e 2-L

eadin

g ed

ges sh

ould

be b

lend

ed ou

t to

a) 5 tim

es the d

epth

of d

amag

e * b

) 10 times th

e depth

of d

amag

e b

) 30 times th

e depth

of d

amag

e 3- T

he sh

ank of th

e prop

eller is perm

itted to

have

a) m

ino

r repairs

* b) n

o rep

airs c) n

o decals fitted

4- Wo

od

en p

rop

ellers are permitted

a)

no

repairs

* b) repairs u

sing

sawd

ust an

d aero

-glue

b) rep

airs that d

o n

ot affect w

eigh

t and

balance 5- C

om

po

site pro

pellers m

ay have m

ino

r repairs carried

ou

t by

a) th

e op

erator

b) an

y app

roved

3rd p

arty main

tenan

ce org

anizatio

n

* c) any ap

pro

ved co

mp

osite rep

air facility 6- D

etails of p

rop

eller overh

aul m

ay be fo

un

d in

* a) A

irwo

rthin

ess No

tice 75 a)

the AM

M

b) A

irwo

rthin

ess No

tice 55 7- T

he tip

clearance of a sin

gle en

gin

e tail wheel aircraft is m

easured

with

the

aircraft a)

tail wh

eel on

the g

roun

d

* b) tail w

heel in

the take off p

ositio

n

b) in

the rig

gin

g p

osition

8- T

he tip

clearance of a m

ulti en

gine aircraft

a) is taken

betw

een th

e eng

ines w

ith th

e prop

s aligned

. * b

) is taken betw

een th

e pro

p an

d th

e fuselage b

) is taken fro

m th

e grou

nd

9- T

he tip

clearance of a sea p

lane is a)

9 inch

es b

) 1 inch

* c) 18 inch

es

10-C

rop

pin

g is p

ermitted

to a m

aximu

m o

f a)

in

ch o

n o

ne b

lade on

ly b

) in

ch o

n all b

lades

* c) 1 inch o

n all b

lades

11-Th

e op

timu

m an

gle fo

r a fixed p

itch p

ropeller is

* a) 2 - 4 deg

rees b

) 6 - 10 deg

rees c) 15 deg

rees 12-A

left han

ded

pro

peller is o

ne th

at a)

rotates clockw

ise when

viewed

from

the fro

nt

* b) ro

tates clockw

ise wh

en viewed

from

the rear

b) is fitted

to an

eng

ine on

the L

eft side o

f the aircraft 13- If th

e speeder sp

ring

pressu

re of a C

SU

is increased

the b

lade w

ill * c) fine o

ff a)

b)co

arsen o

ff b

) c) will n

ot m

ove

14- Mechan

ical vibratio

n relatin

g to

pro

pellers in

a piston

pow

ered aircraft

a) is d

ue to

the lead

lag o

f the p

rop

eller com

pared to

the en

gine

* b) is d

ue to

the p

ower stro

ke of th

e engin

e and

may h

ave a mo

re d

etrimen

tal effect than

aerod

ynam

ic vibratio

n

c) is d

ue to

the cran

kshaft at interm

ittent p

ow

er setting

s 15- P

rop

anti-icin

g m

ay be ach

ieved b

y a)

a usin

g h

ot air fro

m th

e com

presso

r b

) usin

g co

mm

ercial de-icin

g flu

id sp

rayed o

n th

e pro

* c) u

sing

iso - p

ropyl alco

ho

l de-icin

g flu

id sp

rayed o

n th

e blad

e 16- D

e-icing

of th

e pro

peller can

be m

on

itored

by

a) view

ing

the b

lade and

ob

serving

ice falling o

ff the b

lade

* b) an

amm

eter in th

e fligh

t deck

b) view

ing

the d

eicing

fluid

level sigh

t glass

17-Metal at th

e tip and

alon

g th

e leadin

g ed

ge o

f a wo

od

en p

ropeller is * a) fo

r pro

tection

b

) for A

nti-icin

g

c) for b

alancing

18- In

sulatio

n testin

g of electrical d

e-icing

systems sh

ou

ld b

e period

ically carried

ou

t becau

se of

a) o

xidatio

n d

ue to

atmo

sph

eric con

ditio

ns

b) w

ear on

the slip

rings

* c) an o

pen

circuit in

on

e of th

e blad

es

19- S

ynch

ron

izing

can o

nly b

e achieved

if the slave p

rop

eller is: a)

a with

in 20 rp

m o

f the master

* b) w

ithin

100 rpm

of th

e master

b) th

e same sp

eed as th

e master

20-Syn

chro

nisin

g is carried

ou

t to :

* a) match

engin

e rpm

b

) match

pro

p tip

speed

c) m

atch b

lade p

hase an

gle d

ifference

21- Fo

rces acting

on a p

rop

eller are * a) cen

trifug

al, twistin

g, an

d b

end

ing

b

) torsio

n, ten

sion

and

thru

st c) to

rqu

e Th

rust an

d Cen

trifug

al 22- A

erod

ynam

ic Co

rrection

Facto

r (AC

F)

* a) is indicated

in th

e form

of d

egrees an

d m

inu

tes of p

itch

b) co

rrects for d

ynam

ic balan

ce c) co

rrects for static b

alance

23- Th

e blad

e angle at th

e roo

t is * a)g

reater than

the tip

b

) less than th

e tip

c) same fro

m tip

to roo

t 24- A

pro

peller w

ith an

adju

stable b

lade can b

e adju

sted

a) in

fligh

t b

) on

the g

rou

nd

with

the en

gin

e run

nin

g

* c) on

the gro

un

d w

ith th

e eng

ine station

ary 25- W

hat force o

n a pro

peller blad

e turn

s the b

lades to

a fine pitch

?

a) To

rqu

e b

) AT

M

* c) CT

M

26- When

on

the g

roun

d w

ith th

e eng

ine id

ling

the p

rop

con

trol sho

uld

be

a) fu

lly forw

ard w

ith th

e mixtu

re at idle

b) fu

lly aft with

the m

ixture at id

le * c) fu

lly aft with

the mixtu

re at rich

27- Op

eration

with

the en

gin

e at maxim

um

bo

ost sh

ou

ld b

e limited

to

a) p

rop

at fine to

preven

t overstressin

g th

e eng

ine

* b) p

rop

at cou

rse to p

revent o

verstressing

the en

gin

e c) p

rop

at win

dm

ill to p

revent o

verstressing

the en

gin

e 28- O

n an u

nd

erspeed

con

ditio

n th

e blad

es are turn

ed to

a) feather b

) coarse

* c) fine

29-T

he syn

chro

nizatio

n g

overn

or m

on

itors

a) p

rop

tip sp

eeds

b) th

rust tip

speed

s * c) R

PM

30- T

he p

urp

ose o

f pro

p tw

ist is * a) to m

aintain

An

gle o

f Attack at th

e same valu

e alon

g th

e blad

e. b

) to m

aintain

Blade A

ng

le alon

g th

e blade

c) coarsen

the b

lade an

gle at th

e roo

t 31- S

ynch

ron

ization

is used

to :

a) p

reset the p

hase an

gle of p

rop

ellers * b

) redu

ce vibratio

n an

d n

oise

c) redu

ce the p

itch o

f the fastest ru

nn

ing

blade

32- In a h

ydro

man

tic pro

peller w

ith co

un

terweig

hts w

hat is used to

make th

e p

rop

eller mo

ve to fin

e pitch

; a)

AT

M

b) cen

trifug

al force actin

g o

n th

e cou

nterw

eigh

t * c) en

gin

e oil

33- Th

e forces actin

g on

a pro

peller b

lade are

a) th

rust an

d to

rqu

e * b

) ben

din

g tw

isting

and

centrifu

gal

c) thru

st aerod

ynam

ic and

tensio

n

34- Dam

age to

a leading

edg

e can b

e blended

in co

mp

arison

to a blade face

a) b

y main

tainin

g a sm

ooth

dep

ression

b

) by n

ot exceed

ing

25% o

f the ch

ord

* c) at a steep

er angle

35- T

he lo

ng

itud

inal clearan

ce betw

een th

e no

se wh

eel and

the pro

peller o

n a

Tricycle g

eared pro

peller is

a) 18 in

ches b

) 9 inch

es * c) 1/2 in

ch

36- Relaxin

g ten

sion

on

the g

overn

or sp

ring

will resu

lt in th

e blad

e coarsening

an

d

a) R

PM

increasin

g m

anifold p

ressure in

creasing

b

) man

ifold

pressu

re constan

t, RP

M d

ecreasing

* c) R

PM

decreasin

g , m

anifo

ld p

ressure in

creasing

37- A

tracking

check com

pares

a) 2 O

pp

osite blad

es b

) 2 Ad

jacent b

lades

* c) any 2 b

lades

38- B

lade cu

ffs are fitted to

the ro

ot o

f the b

lades

a) to in

crease thru

st b

) to in

crease the streng

th o

f the b

lade

* c) to increase flo

w o

f coo

ling

air into

the en

gin

e nacelle. 39- T

he g

rou

nd

fine pitch

stop

is * a) rem

oved

on

the g

rou

nd

a)

never rem

oved

b

) remo

ved d

urin

g flig

ht

40- Low

torq

ue sen

sing

is used

to:

a) in

crease pow

er b

) increase p

itch

* c) initiate auto

-feather

41- A lin

e of in

den

tation

s at on

e blad

e section

can b

e * a) declared

unserviceab

le b

) left for u

p to

12 mo

nth

s c) b

lended

with

in limits

42- On

an electrical de-icing

system first cycle is u

sed

* a) at Low

Air T

emp

erature

b) at h

igh

Air T

emp

erature

c) o

n th

e Gro

un

d

43- Blad

e ang

le at the ro

ot is

a) low

* b

) hig

h

c) the m

aster blade an

gle

44- If go

verno

r fly wheel o

vercom

es the speed

er sprin

g, it in

dicates

* a)over sp

eed

b) u

nd

er speed

c) o

n sp

eed 45- B

lade an

gle is taken

from

the ch

ord

and

a) relative airflow

b

) pro

peller sh

aft * c) p

lane o

f rotation

46- S

ynch

ron

ization

is used

a)

in flig

ht

* b) in

fligh

t except lan

din

g an

d take o

ff c) o

n th

e gro

un

d

47- Pitch

con

trol u

sing to

rqu

e measu

ring

is for

a) in

creasing

drag

* b

) reducin

g d

rag in

eng

ine failu

re c) red

ucin

g d

rag in

bind

ing

48- If fo

rce is app

lied to

the sp

eeder sp

ring, w

hat w

ill hap

pen

: a)

blad

e ang

le coarsen

* b) b

lade ang

le finer c) b

lade an

gle is fro

zen in

last know

n p

ositio

n

49- Pro

peller vib

ration

du

e to a p

rob

lem w

ith p

rop

eller installatio

ns w

ou

ld h

ave a vib

rating

frequ

ency o

f a)

hig

her freq

uen

cy than

turb

ine vib

ration

b

) the sam

e frequ

ency as tu

rbin

e vibratio

n

* c) lower freq

uen

cy than

turb

ine vib

ration

50- In

sulatio

n ch

ecks on

pro

peller electrical h

eating

elemen

ts sho

uld

be carried

o

ut freq

uen

tly du

e to

* a) sho

rt/op

en circu

its in th

e heatin

g system

wires alo

ng

the p

rop

eller blad

e b

) oxid

ation

of slip rin

g an

d b

rush

gear assem

bly

c) dep

osits fo

rmed

due to

the w

ear of slip rin

g an

d b

rush

gear assem

bly

51- Prelo

adin

g p

rop

eller blades befo

re installatio

n p

revents

* a) blade flu

tter b

) aerod

ynam

ic imb

alance o

n th

e blad

es c)

blad

e disto

rtion

52- When

is sup

erfine pitch

used

?

a) In

cruise

b) L

and

ing

and

takeoff

* c) En

gin

e starting to

redu

ce pro

peller to

rqu

e load

ing

on

starter mo

tor 53- W

hen u

n-feath

ering

a pro

peller, th

e blad

e sho

uld

be pu

t into

what p

ositio

n to

sto

p p

rop

eller over-sp

eed?

* a) Co

arse pitch

b

) Fin

e pitch

c) N

egative p

itch

54- Blad

e ang

le is measu

red usin

g a

a) b

evel pro

tractor * b

) pro

peller p

rotracto

r c) clin

om

eters 55-W

hat fo

rces act on a p

rop

eller blad

e?

a) T

hru

st and

torq

ue

* b) B

end

ing

, centrifu

gal C

TM

and

AT

M

c) Ben

din

g, th

rust, to

rqu

e

56- W

hen th

e fly weigh

ts fly ou

tward

s in a P

CU

, this is kn

own

as a)

on

speed

b

) un

der sp

eed * c) o

ver speed

57- In an on speed condition, oil in the tube

a) flow

s ou

t of th

e tub

es b

) flows in

the tu

bes

* c) remain

s constan

t 58- W

here is the de-icin

g b

oo

t?

* a) Ro

ot b

) Tip

c) T

railing

edg

e 59- O

n a reversin

g p

rop

mo

ving

to th

e max reversin

g an

gle, th

e pro

p g

oes

* a) from

fine pitch

thro

ug

h p

lane o

f rotatio

n, fin

e reverse then

cou

rse reverse b

) from

fine p

itch th

rou

gh

plan

e of ro

tation, co

urse reverse th

en fin

e reverse c)

from

cou

rse pitch th

rou

gh

plan

e of ro

tation co

urse, fin

e reverse then

co

urse reverse

d)

60- In th

e Beta ran

ge, w

hen an

gle o

f attack increases th

e fuel flo

w in

crease, and

w

hat else?

* a) RP

M an

d E

GT

b

) b) E

PR

and

fuel tem

peratu

re c) F

uel tem

p

61- CT

M w

ill * a) tu

rn th

e blad

e abo

ut th

e lateral axis b

) try to b

end

the b

lade aw

ay from

the en

gin

e c) cau

se the tip

s to ro

tate at sup

erson

ic speed

s 62- W

ith a p

rop

eller defect, will th

e frequency b

e a)

hig

her th

an a tu

rbin

e defect

b) h

igh

er than

a auxiliary g

earbo

x defect

* c) lower th

an a turbin

e defect

63- To

rqu

e sensin

g is u

sed to

a)

redu

ce drag

* b

) reduce d

rag fo

llowin

g en

gin

e shu

tdow

n

b) syn

chro

nize b

lade ang

les 64- If p

ressure is in

creased o

n th

e speeder sp

ring

s, rpm

increase. W

hat hap

pen

s to

the blad

e ang

le?

a) In

creases * b

) Decreases

c) Rem

ains un

chan

ged

65- Fro

m reverse p

itch, to

return

to n

orm

al pitch

it * a) passes th

rou

gh fin

e b

) passes th

rou

gh

coarse

c) passes th

rou

gh

coarse th

en fine

66- In a p

rop

with

coun

terweig

hts, w

hat is used

to m

ake it mo

ve to fin

e pitch

?

a) ATM

s b

) Cen

trifug

al force actin

g o

n th

e cou

nterw

eigh

t * c) G

overn

or o

il pressu

re 67- If a p

ropeller is in fin

e pitch

and

then

mo

ves to feath

er it will p

ass thro

ug

h

a) reverse b

) fligh

t fine o

nly

* c) coarse

68- When

in reverse p

itch, C

TM

will ten

d to

mo

ve the p

rop

eller blad

es toward

s a)

a neg

ative pitch

* b

) a po

sitive pitch

c) a p

ositio

n d

epen

ding

on

rpm

69- If th

e blad

e ang

le is increased

a) T

he p

itch beco

mes fin

er. * b

) Th

e pitch

beco

mes coarser

c) Lateral stab

ility decreases.

70- A double acting propeller has a)

oil p

ressure o

n o

ne side o

f pisto

n

* b) o

il pressu

re on tw

o sid

es of p

iston

c) n

itrog

en o

r air on

on

e side o

f pisto

n

71- Du

ring

no

rmal p

rop

eller operatio

n, o

il pressu

re for th

e go

verno

r is pro

vided

b

y a)

the en

gin

e driven

pu

mp

b

) a variable vo

lum

e pu

mp

* c) a p

um

p in

the g

overn

or

72-Oil for an on speed condition passes through

a) th

e coarse p

itch lin

e b

) the fin

e pitch

line * c) neith

er of th

e lines

73- If the sp

ur gear pu

mp

in a sin

gle acting

pro

peller g

overn

or failed

, the

* a) blades w

ou

ld tu

rn to

a coarse p

itch b

) blad

es wo

uld

rotate to

a fine p

itch

c) blad

es wo

uld

mo

ve to th

e feather p

osition

74- T

he h

ydro

matic variab

le pitch

pro

peller is o

perated

on

the prin

ciple o

f * a) oil p

ressure m

ovin

g a p

iston

b

) an electrical m

otor m

ovin

g a g

ear segmen

t c) a venturi or u tube w

ith mercury

75- B

lend

ing

of p

ropeller blad

e defects refers to th

e a)

repain

ting

of b

lade tip

s after crop

pin

g

b) m

atchin

g o

f pain

t finish

es for ap

pearan

ces * c) co

nversio

n o

f rou

gh

or sh

arp ed

ges into

smo

oth

dep

ression

s 76- R

emo

val of m

aterial from

the p

rop

eller blad

e tips, resultin

g in

a redu

ction

in

pro

peller d

iameter is called

a)

tipp

ing

b

) top

pin

g

* c) crop

pin

g

77- Th

e minim

um

percen

tage seatin

g o

n a p

rop

eller rear con

e shou

ld b

e a)

95%

b) b

) 90%

* c) 70%

78- As a p

rop

eller blad

e mo

ves thro

ug

h th

e air, forces are p

rodu

ced, w

hich

are kn

own

as : a)

ift and

drag

b

) lift and

torq

ue

* c) thru

st and

torq

ue

79- Pro

peller efficiency

* a) the ratio

of th

e usefu

l wo

rk do

ne b

y the p

rop

eller to w

ork do

ne b

y the

eng

ine on

the pro

peller

b) th

e ratio o

f the w

ork ap

plied

to th

e geo

metric p

itch to

usefu

l wo

rk on

the C

.S.U

. c) ratio

of o

utp

ut sp

eed to

inp

ut p

rop

eller speed

80- Geo

metric P

itch is th

e distance m

oved

* a) in

on

e revolu

tion

with

ou

t slip

b) in

on

e revolu

tion

when

slip is maxim

um

c)

in o

ne revo

lutio

n

81- As p

rop

eller rotatio

n sp

eed in

creases the cen

trifug

al turn

ing m

om

ent o

n th

e b

lades w

ill : a) R

emain

con

stant th

rou

gh

r.p.m

. rang

e * b

) increase

c) decrease

82- P

rop

eller torq

ue is th

e resistance offered

by th

e pro

peller to

a)

chan

gin

g p

itch

* b) ro

tation

b

) featherin

g

83- Th

e angle b

etween

the resu

ltant airflow

direction

and

the pro

peller blad

e p

lane o

f rotatio

n is kn

own

as: a)

ang

le of attack

b) h

elix ang

le or an

gle o

f advan

ce * c) b

lade an

gle

84- Wh

ich typ

e of tu

rbo

-pro

peller en

gine is p

ractically free from

surg

e and

req

uires low

pow

er for startin

g

a) d

irectly cou

pled

b

) On

e usin

g a cen

trifug

al com

presso

r. * c) tw

in spo

ol free tu

rbin

e 85- The propeller is feathered w

hen the blades are at * a) 90o

to p

lane o

f rotatio

n.

b) 0o

to p

lane o

f rotatio

n

c) 20o to

plan

e of ro

tation

86- T

he co

nstant sp

eed u

nit (C

.S.U

.) go

verno

r wo

rks on

the p

rinciple o

f a)

man

ual selectio

n th

rou

gh

a gearb

ox

b) cen

trifug

al twistin

g m

om

ents

* c) sprin

g p

ressure actin

g ag

ainst cen

trifug

al force

87- At co

nstan

t rpm

, advan

ce per revo

lutio

n d

epen

ds o

n

a) th

e ang

le of ad

vance

* b) forw

ard sp

eed

c) SH

P

88- Aero

dyn

amic Tw

isting

Mo

men

t * a) tu

rns th

e blades to

hig

h p

itch

b) tu

rns th

e blad

e to low

pitch

c) tu

rns th

e blade to

win

dm

ill 89- T

he th

rust o

f a pro

peller is n

orm

ally taken b

y the

a) p

rop

eller rear con

e b

) torq

ue m

eter * c) fro

nt b

earing

in th

e redu

ction

gear

90- Un

der n

orm

al operatio

n th

e po

int o

f maxim

um

stress on

a prop

eller blade is

at the * a) ro

ot

b) tip

c) m

aster station

91- O

n w

hich

type o

f turb

o-p

rop

eller wo

uld

you

expect to

find

a parkin

g b

rake: a)

com

po

un

ded

twin

spoo

l * b

) free turb

ine

c) direct co

up

led tw

in sp

oo

l 92- P

rop

eller blad

e ang

le: a)

increases fro

m ro

ot to

tip

* b) d

ecreases from ro

ot to

tip

c) is con

stant alo

ng

the b

lade len

gth

93- T

he p

urp

ose o

f the p

itch chan

ge cam

s is to

* a) Co

nvert lin

ear mo

tion

to ro

tary mo

tion

. b

) Co

nvert ro

tary mo

tion

to lin

ear mo

tion

. c) p

revent w

ind

millin

g

94- What d

oes th

e torq

ue m

eter readin

g ind

icate in a gas tu

rbine en

gin

e?

* a) To

rqu

e reaction at th

e redu

ction

gear b

) En

gin

e torq

ue

c) Th

e ratio b

etween

eng

ine th

rust an

d en

gin

e torq

ue

95- Th

e gear typ

e pu

mp

in a C

.S.U

. or P

.C.U

a)

lub

ricates the en

tire pro

peller system

* b

) bo

osts en

gin

e oil system

pressu

re c) assist th

e go

verno

r valve to m

ove

96- Th

e gear seg

ments o

n th

e blad

e roo

ts of a h

ydro

matic p

rop

eller mesh

W

ith th

e a)

station

ary cam

b) to

rqu

e tub

es and

eye bo

lts * c) m

ovin

g cam

97- C

oarse p

itch is used

for

a) take o

ff and

climb

* b

) maxim

um

econo

mical cru

ise in level flig

ht

c) land

ing

and

pow

er checks

98- A p

rop

eller is centralised

on th

e pro

peller shaft b

y a)

the fro

nt g

it seal b

) the rear p

re-load

shims

* c) the fro

nt an

d rear co

nes 99-R

edu

ction

gearin

g allows th

e a)

blad

e tips to

op

erate abo

ve the sp

eed o

f sou

nd

b

) blad

e tips to

rotate slow

er than

the ro

ot o

f the p

rop

eller blade

* c) blade tips to

operate b

elow th

e speed o

f sou

nd

100- E

ffective pitch

is * a) geo

metric p

itch m

inu

s slip

a) d

istance m

oved

in o

ne revo

lutio

n

b) p

itch m

easured

at the master statio

n

101- P

rior to

usin

g the u

niversal p

rop

eller pro

tractor

a) check date stam

p fo

r serviceability

* b) d

etermin

e the referen

ce blade station

c) en

sure th

e pro

peller b

lade is at th

e ho

rizon

tal 102- A

win

d millin

g P

rop

eller has * a) a sm

all po

sitive blad

e ang

le b

) a small p

ositive an

gle o

f attack c) a sm

all neg

ative ang

le of attack

103- To

fit a new

front co

ne to

a pro

p sh

aft firstly a)

coat in

En

gineers b

lue to en

sure seatin

g in

the p

rop

eller fron

t bo

ss b

) etch th

e pro

peller serial n

um

ber to

the rear face

* c) cut in

half w

ith a h

acksaw an

d etch

a un

iqu

e serial nu

mb

er to b

oth

halves

104- W

hen

fitting

a pro

peller to

a tapered

shaft

a) lo

cate the m

aster splin

e b

) ensu

re fully seated

* c) en

sure th

e master sp

line and

blade alig

nm

ent are in

accordan

ce w

ith th

e MM

105- B

lade tracking

is adju

sted b

y a)

reseating

the p

rop

eller on

the fro

nt an

d rear co

nes

b) ad

din

g lead w

oo

l to th

e blad

e shan

k * c) b

y fitting

shim

s to th

e pro

peller shaft h

ub

106- W

hat are th

e pu

rpo

se of sm

all ho

les at the tip

of w

oo

den

pro

pellers?

a) B

alancin

g

b) P

ivot p

oin

ts used

du

ring

man

ufactu

re * c) D

rainag

e 107- T

he th

rust face o

f a pro

peller b

lade is the

* a) rear face or flat sid

e b

) fron

t face or cu

rved sid

e c) ro

ot to

wh

ich th

e gear seg

men

t is fitted

108- How

is anti icin

g fluid

fed to

the in

divid

ual b

lades?

a)

Pu

mp

to each

blade ru

bb

er feed b

oo

t * b

) Pu

mp

to a sling

er ring

b

) Un

der g

ravity to th

e sling

er ring

then

on

to th

e blad

e 109- Ice is rem

oved

from

blad

es by

* a) inb

oard an

d o

utb

oard

bo

ot sectio

ns h

eated in

sequ

ence by actio

n

of th

e timer

b) a co

ntin

uo

usly h

eated electrical b

oo

t c) ru

bb

er bo

ots in

flated in

sequ

ence u

sing co

mp

ressor h

ot air

110- S

olid

ity of a p

rop

eller can be in

creased b

y a)

increasin

g b

lade thickn

ess b

) increasin

g b

lade ang

le * c) in

creasing

blade ch

ord

111- W

ind

millin

g causes

a) p

rop

eller un

der sp

eedin

g

* b) m

aximu

m p

ropeller d

rag

c) Cen

trifug

al Twistin

g M

om

ent

112- Wh

en an en

gin

e fails a)

the p

rop

is feathered

usin

g th

e pro

peller go

verno

r pu

mp

b

) the p

rop

is feathered

usin

g co

un

terweig

hts

* c) the p

rop

is feathered

usin

g an

electrical featherin

g p

um

p

113- Th

e pu

rpose o

f an accu

mu

lator in

a do

ub

le acting

pro

peller

system is to

a)

pro

vide b

ack up

to the g

overn

or p

um

p

* b) accelerate th

e un

-featherin

g p

rocess

c) to

po

rt oil to

the co

arse pitch

oil line to assist in

feathering

the p

rop

eller 114-T

orq

ue acts

* a) in o

pp

ositio

n to

the d

irection

of ro

tation

b

) in th

e same d

irection

as the plan

e of rotatio

n

c) at righ

t ang

les to th

e plan

e of ro

tation

115- T

he p

urp

ose of b

lade tw

ist is to

a) red

uce an

gle o

f attack at the b

lade ro

ot

* b) to

even o

ut th

rust d

istribu

tion

across the p

rop

eller c) to

ensu

re that tip

speed

do

es no

t go

faster than

Mach

1 116- A

turb

o-p

rop

eng

ine

a) u

ses a spu

r gear reductio

n system

* b

) uses an

epicyclic red

uction

gear system

c) d

oes n

ot req

uire a redu

ction

gear system

du

e to th

e pro

psh

aft b

eing

driven

from

the low

speed

com

presso

r 117- T

otal p

ower o

f a tub

o-p

rop

eng

ine is m

easured

in

a) B

rake Ho

rsepow

er (BH

P)

b) S

haft H

orsep

ower (S

HP

) * c) E

qu

ivalent S

haft H

orsep

ower (E

SH

P)

118- Wh

en sto

ring

wo

od

en p

rop

ellers a)

wrap

in g

reasepro

of p

aper

* b) sto

re in a h

orizo

ntal p

ositio

n

b) sto

re in a d

ry well ven

tilated an

d illu

min

ated lo

cation

119- T

o co

nd

uct a p

ower check o

f an in

ternal co

mb

ustio

n en

gin

e requ

ires a)

coarse p

itch settin

g an

d ad

vance th

e thro

ttle to th

e target R

PM

b

) fine p

itch settin

g an

d ad

vance th

e eng

ine to

the m

ax RP

M setting

* c) fine p

itch settin

g an

d ad

vance th

e eng

ine to

the targ

et RP

M settin

g

120- Th

e disadvan

tage o

f usin

g reverse p

itch o

n a tu

rbo

-pro

peller en

gin

e is * a) deb

ris ing

estion

b) h

igh

gas tem

perature

c) exhaust g

as ing

estion

, hig

h g

as temp

erature an

d d

ebris in

gestion

121- W

hen

auto

featherin

g h

as taken place th

e featherin

g p

um

p is sw

itched

off

by:

a) p

ressure co

ntro

l drop

switch

b

) remo

ving

the p

um

p circu

it breaker o

r fuse

* c) carrying

ou

t the m

anu

al feather d

rill 122- A

com

po

un

d tw

in sp

oo

l eng

ine is:

a)

turb

o p

rop

pro

peller d

riven b

y a po

wer tu

rbin

e * b

) turb

o p

rop

twin

spo

ol co

mp

ressor

b) L

P C

om

presso

r driven

by a free tu

rbin

e 123- O

n a free tu

rbin

e eng

ine it is p

ossible to

vary the p

rop

eller RP

M w

hilst the

eng

ine RP

M rem

ains co

nstan

t * a) b

y op

erating

the P

CU

con

trol L

ever b

) by o

peratin

g th

e Pow

er lever c) it is n

ot p

ossib

le to vary th

e pro

peller R

PM

124- T

he p

ower o

utpu

t of a tu

rbo

pro

p en

gin

e is checked

by

a) R

eference R

PM

* b

) Reference T

orqu

e c) R

eference T

hru

st 125- W

ith th

e eng

ine station

ary the in

dicatio

n th

at the p

rop

eller is in g

rou

nd

fine

pitch

is : * a) below

stop

warn

ing

ligh

t on

b

) blad

e and

spin

ner m

arkings alig

ned

c) flig

ht fin

e pitch

stop

lever with

draw

n

126- A p

rop

eller con

trol U

nit h

ydrau

lic system is su

pp

lied w

ith o

il from

the

a) aircraft h

ydrau

lic System

b

) PC

U o

il tank

* c) eng

ine L

ub

rication

Oil tan

k 127- L

ow to

rqu

e sensin

g is u

sed to

initiate

a) relig

htin

g

b) fin

e pitch

selection

* c) auto

featherin

g

128- W

hen

the p

ower lever o

n a tu

rbo

pro

p en

gin

e is mo

ved fro

m g

rou

nd

idle to

flig

ht fin

e the fuel flow

increases and th

e blad

e ang

le * a) in

creases b

) decreases

c) remain

s the sam

e 129- W

hat is th

e pu

rpose o

f the au

to coarsen

ing

system?

a)

To

redu

ce drag

du

ring p

ower lo

ss * b

) To

preven

t over sp

eedin

g in th

e event o

f the flig

ht fin

e pitch

stop

failing

c) T

o save th

e pilo

t makin

g m

ino

r chan

ges wh

en chan

gin

g altitud

e 130- In

a sing

le acting p

rop

eller blade an

gle is increased

by

a) C

TM

b

) oil p

ressure

* c) AT

M

131-Th

e fun

ction

of a p

rop

eller pitch

lock is to

preven

t the p

rop

eller from

* a) fin

ing o

ff b

) coarsen

ing

c) red

ucin

g below

fligh

t fine p

itch

132- Th

e min

imu

m p

rop

eller pitch

is establish

ed b

y the

a) flig

ht fin

e pitch

stop

* b

) superfin

e pitch sto

p

c) pitch

lock

133- Oil fo

r the feath

ering

system is taken fro

m

* a) a featherin

g reserve in

the en

gin

e oil tan

k b

) a separate featherin

g o

il tank

c) the en

gin

e lub

rication

system

134- Imm

ediately after b

lend

ing

ou

t dam

age to a b

lade th

e repair m

ust b

e * a) re-p

rotected

against co

rrosion

b

) balan

ced c) crack checked

135- H

ow are b

lade statio

n m

easured

?

a) In

inch

es from

the tip

* b) In

inch

es from

the cen

tre of th

e hu

b

c) As a p

ercentag

e of blad

e leng

th fro

m th

e tip

136- Pro

peller blades are de-iced

by

a) electrical h

eating

elemen

ts wo

un

d aro

un

d rub

ber sh

oes

* b) electrical h

eating

elemen

ts bo

un

d in

rub

ber o

versho

es on

the b

lade

leadin

g ed

ges

c) gen

erating

edd

y curren

ts in th

e blad

e

137- T

he oil u

sed in

the to

rqu

e meter system

is : a)

DT

D585

b) P

CU

oil p

ressure

* c) eng

ine o

il pressu

re bo

osted

by a p

um

p d

riven o

ff the red

uctio

n g

ear 138- E

lectrical pow

er sup

plies fo

r electrical de-icin

g are

a) A

C

b) D

C

* c) bo

th A

C o

r DC

139- H

ow is th

e efficiency o

f a turb

o p

rop

eng

ine assessed

?

a) B

y com

parin

g co

mp

ressor an

d p

rop

eller RP

M ag

ainst a referen

ce fig

ure

* b) B

y com

parin

g to

rqu

e meter p

ressure ag

ainst a reference figu

re c) B

y correctin

g p

rop

eller RP

M fo

r amb

ient A

ir temp

erature and

b

arom

etric pressu

re 140- W

hich

type o

f turb

o p

rop

eng

ine is p

ractically free from

surg

e and

requires

low

pow

er for starting

?

a) D

irectly cou

pled

b

) On

e usin

g a cen

trifug

al com

presso

r * c) C

om

po

un

d tw

in sp

oo

l 141- W

hat are th

e centrifu

gal latch

es in a sin

gle actin

g p

rop

eller used

for?

a)

Preven

t CT

M

* b) P

revent feath

ering

of th

e pro

p o

n sh

utd

own

b

) Preven

t pro

peller m

oving

to su

perfin

e 142- P

ropeller slip

rings

a) co

nvey o

il for P

CU

to p

itch ch

ang

e mechan

ism

b) m

inimize S

lip

* c) con

du

ct electrical pow

er for d

e icing

143- On

an electrical d

e-icing

system fast cycle is u

sed a)

at hig

h air tem

perature * b

) at low air tem

perature

b) o

n th

e gro

un

d

144-Blade statio

ns are m

easured

from

the

a) sh

ank

b) tip

* c) cen

tre of th

e hub

145- A

uto

featherin

g is d

isarmed

a)

du

ring

take off

b) d

urin

g lan

din

g

* c) in the cru

ise

146- T

he lim

its for a trackin

g ch

eck are: a)

1/4" maxim

um

differen

ce betw

een ad

jacent blad

es b

) 1/8" maxim

um

differen

ce between

op

po

site blad

es * c) 1/8" m

aximu

m d

ifference betw

een all blad

es 147- A

fter a ligh

tnin

g strike a)

the p

rop

eller mu

st be tracked

b

) the p

rop

eller shaft sho

uld

be ch

ecked for co

ncen

tricity * c) th

e heater elem

ents sh

ou

ld b

e checked

for co

ntin

uity an

d in

sulatio

n

148- After o

ver speedin

g to

110%

a) rem

ove p

rop

for in

spectio

n

b) retu

rn p

rop

for o

verhau

l * c) n

o actio

n is req

uired

149- In

den

tations to

the b

lade face are m

easured

* a) in

divid

ually an

d co

llectively b

) collectively

c) ind

ividu

ally 150- W

ith a m

ulti-en

gined

aircraft the to

rque p

ressure w

ou

ld be * a) sam

e on

all engin

es a)

similar o

n all en

gines

b) T

here is o

nly o

ne g

aug

e for all en

gin

es 151- If to

rqu

e pressu

re fell to zero

du

ring

the cru

ise what w

ould in

dicate th

at the

gau

ge had

failed?

a) E

ng

ine w

ou

ld au

to feath

er b

) En

gin

e wo

uld

over sp

eed

* c) En

gin

e wo

uld co

ntin

ue to

run

152- T

he p

urp

ose of u

sing

reverse pitch

prop

ellers is to

* a) pro

vide aero

dyn

amic b

reaking

a)

reverse the d

irection

of ro

tation

of th

e pro

peller

b) allow

aircraft to taxi b

ackward

s 153- T

he R

PM

of a w

ind

millin

g p

rop

eller is prim

arily related to

a) E

AS

b

) IAS

* c) T

AS

154- A

du

cted p

rop

eller is used because

a) o

nly d

ucted

pro

pellers can

be vectored

b

) du

cted p

rop

s give less th

rust fo

r the d

iameter o

f disc

* c) ducted

pro

ps give m

ore th

rust fo

r the d

iameter o

f disc

155- T

he p

ropeller syn

chro

nisin

g system

is pu

t into

op

eration

by * a) ad

justin

g th

e eng

ine rp

m at req

uired

cruise sp

eed th

en switch

ing

o

n th

e synch

ron

izer b

) adju

sting

the en

gin

e rpm

then

pro

p rpm

to req

uired

speed

then

switch

ing

on

c) sw

itching

on

the syn

chro

niser th

en ad

just th

e eng

ine rp

m so

that all

eng

ines ad

just to

gether

156- Pro

pellers are synch

ron

ised b

y the

a)

pow

er lever * b

) pro

p lever

c) PC

U g

overn

or

157-Th

rust is g

reatest * a) at 70 to

80% o

f pro

p len

gth

b

) the sam

e all alon

g the len

gth

c) in

the first 50%

158- A

two

po

sition

prop

uses

* a) low p

itch fo

r take off an

d clim

b an

d h

igh

pitch

for cru

ise b

) hig

h p

itch fo

r take off an

d low

pitch

for cru

ise c) h

igh

pitch

for take o

ff, low pitch

for clim

b an

d d

escent and

hig

h

pitch fo

r cruise

159- In a tw

o p

ositio

n pro

peller:

* a) oil pu

shes th

e pro

p to

fine

b) o

il pu

shes th

e prop

to co

arse c) A

TM

turn

s the p

rop

to fin

e 160- C

TM

chan

ges the pitch

of a b

lade

* a) abo

ut its tw

isting

axis b

) towards th

e feather plan

e c) b

end

ing

forw

ard 161- W

hen

a pro

peller h

as had a rep

ort o

f oversp

eedin

g

a) th

e pro

peller m

ust b

e remo

ved an

d tracked

* b

) it is dep

endan

t on

the exten

t of o

verspeed

ing

c) th

e pro

peller m

ust b

e remo

ved an

d sent to

the m

anu

facturer

162-Th

e velocity o

f the slipstream

beh

ind

the aircraft in

relation

to th

e am

bien

t air is a)

equ

al * b

) greater

c) less

163- H

igh

speed aerofo

ils are emp

loyed

at: * a) the tip

s b

) the master statio

n

c) the roo

t 164- A

righ

t han

d p

rop

eller: * a) ro

tates clockw

ise wh

en viewed

from

the rear

b) ro

tates clockwise w

hen view

ed fro

m the fro

nt

c) is always fitted

to th

e ST

BD

eng

ine

165-Th

e ou

tpu

t of an

anti-icin

g p

um

p is con

trolled

by

a) a cyclic tim

er * b

) a rheo

stat c) th

e han

d p

um

p

166- Each

blad

e: a)

Is of aero

foil sectio

n.

b) A

ccelerate a mass o

f air rearwards.

c) R

eceives a reaction

force w

hich

pro

pels th

e A/C

. * d

) All th

e answ

ers are correct.

167- Th

e pro

peller; a)

Co

nverts th

e rotary p

ower o

f the en

gine into

thru

st. b

) May b

e located

at the fro

nt o

r rear of th

e eng

ine.

c) M

ay be d

esign

ed to

pro

du

ces reverse thru

st. * d

) All th

e answ

ers are correct.

168- Wh

ich statem

ent is correct?

a)

Th

e geo

metric p

itch is th

e distance th

e pro

p m

oves fo

rward

in o

ne

revolu

tion

. * b

) Th

e effective pitch

is affected b

y air den

sity. b

) Slip

on

ly occu

rred in

a vacuu

m.

c) F

eatherin

g is u

sed for lan

din

g.

169- P

rop

. Blad

e is twisted

: * a) T

o try an

d keep

the th

rust even

alon

g th

e blad

e leng

th.

b) W

ith th

e maxim

um an

gle at th

e blade tip

, to en

sure th

at the tip

speed

d

oes n

ot exceed

mach

1. c) T

o in

crease the to

tal streng

th, o

f the p

rop

eller. d

) To

preven

t tip w

orth

ies. 170- W

hat is b

lade to

rqu

e ben

din

g fo

rce?

a) W

here th

e blad

es ben

d in

to th

e directio

n o

f rotatio

n.

* b) W

here th

e blades b

ackward

s again

st rotatio

n.

c) A fo

rce wh

ich tu

rns the b

lades towards fin

e pitch

. d

) A fo

rce wh

ich bend

s the b

lades backw

ards.

171- Wh

at is blad

e thru

st ben

din

g fo

rce?

a) W

here th

e blad

e tends to

mo

ve forw

ard o

f the h

ub

. b

) Wh

ere the b

lade tip ben

ds fo

rward

. c)

A fo

rce created b

y blad

e thru

st and

hig

h R

.P.M

. * d

) All th

e answ

ers are correct.

172- T

he aero

dyn

amic tw

isting

force:

a) R

otates th

e blad

es into fin

e pitch

. * b

) Ten

ds to

increase b

lade p

itch.

c) Is caused

by th

e blad

e center o

f pressure m

ovin

g rearw

ards.

d) In

creases the to

tal pro

peller th

rust .

173- Th

e centrifu

gal tw

isting

mo

men

t: a)

Assists in

turn

ing

the b

lades in

to fin

e pitch

. b

) Is caused

by th

e mass o

f the b

lade tryin

g to

mo

ve into

the plane

of ro

tation

. c)

Increase w

ith R

PM

. * d

) All th

e answ

ers are correct.

174- If the blad

e reaches th

e speed o

f soun

d at th

e tip:

a) T

he tip

will b

reak off.

b) T

he efficiency w

ill greatly in

crease. * c) E

fficiency will d

ecrease. c)

Th

e efficiency will d

rop

to 86%

175- P

rop

efficiency: * a) Is th

e percentag

e of th

rust H

P to

torq

ue H

P.

b) Is u

sually 72%

maxim

um

. c) In

creases rapid

ly abo

ve 400 MP

H.

d) A

ll the an

swers are co

rrect. 176- Ice fo

rmatio

n o

n pro

pellers, w

hen th

e aircraft is in flig

ht, will:

a) D

ecease stalls speed an

d in

crease no

ise. * b

) Decrease th

rust an

d cau

se excessive vibratio

n.

c) Increase th

rust and

cause excessive vib

ration

. d

) Increase th

rust and

cause excessive n

oise.

177- Wh

at a fun

ction

of th

e auto

matic p

ropeller syn

chro

nizin

g system

o

n m

ulti en

gin

e aircraft ?

a) In

crease vibratio

n and

redu

ce no

ise. * b

) Co

ntro

l eng

ine R

PM

and

redu

ce vibratio

n.

c) Co

ntro

l the tip

speed o

f all pro

pellers.

d) C

on

trol th

e pow

er ou

tpu

t of all p

rop

ellers. 178- W

hat actu

ated th

e pilo

t valve in th

e go

verno

r of a co

nstan

t speed

p

rop

eller?

a) E

ng

ine o

il pressu

re. * b

) Go

verno

r flyweig

hts.

c) Pro

peller co

ntrol lever.

d) G

overn

or p

um

p o

il pressu

re. 179- T

he blad

e ang

le is an an

gle fo

rmed by p

lane o

f rotatio

n and

the:

a) R

elative win

d.

b) B

lade b

ack. c)

Blad

e face. * d

) Ch

ord

of th

e blad

e. 180- F

rom

what sp

ecific po

int are p

ropeller b

lade statio

n m

easured?

a)

Th

e blad

e tip.

b) T

he b

lade sh

ank.

c) T

he b

lade base.

* d) T

he p

rop

, hu

b cen

terline.

181- P

ropeller b

lade station

nu

mb

ers increase from

; a)

Tip

to h

ub

. b

) Lead

ing

edg

e to trailin

g ed

ge.

* c) Hu

b to

tip.

d) T

railing

edge to

leadin

g ed

ge.

182- Th

e actual d

istance a p

ropeller m

oves fo

rward

thro

ug

h th

e air d

urin

g o

ne revo

lutio

n is kn

own

as : a)

Geo

metric p

itch.

* b) R

elative pitch

. b

) Effective p

itch.

d) R

esultan

t pitch

. 183- F

ixed p

itch p

ropellers are u

sually desig

ned

for m

aximu

m

efficiency at:

a) T

ake off

b) fu

ll thro

ttle c) lan

din

g

* d) cru

ising

speed

. 184- co

ntra-ro

tating

pro

peller refers to

: a)

Pro

pellers cap

able o

f bein

g d

riven in

either d

irection

. b

) Two

pro

pellers o

f a twin en

gin

e A/C

turn

ing

in o

pp

osite d

irection

. c)

Pro

peller w

hich can

be reversed

. * d

) Two propellers m

ounted concentrically and turning in opposites d

irection

. 185- W

hat is th

e pu

rpose o

f blade cu

ffs on larg

e pro

pellers?

a) P

rotect b

lade sh

anks. b

) Haw

se pitch

chan

ging

mech

anism

. c)

Pro

tect hu

b assem

bly.

* d) C

oo

l eng

ine mo

re efficiently.

186- A reversib

le prop

eller is on

e that:

* a) Will d

eliver neg

ative thru

st. b

) Can

be in

stalled in

either o

f two

ways.

c) Is mo

un

ted beh

ind th

e win

g.

d) C

an b

e op

erated in

either d

irection

of ro

tation

. 187- O

n w

hat p

art of th

e pro

peller is th

e mo

st stress imp

osed

: a)

On

the tip

* b

) On

the h

ub

c) O

n th

e leadin

g ed

ge.

d) O

n th

e trailing

edge.

188- Wh

at is the m

eanin

g o

f pro

peller track?

a)

Plan

e of ro

tation

. * b

) Th

e path o

f the b

lade tip

. c) T

he d

istance fo

rward

du

ring

on

e revolu

tion

. d

) Th

e blad

e tip vortices.

189- Wh

at is the p

itch o

f a pro

peller w

hen fu

lly feathered

?

* a) 90 deg

rees b

) 75 deg

rees c) 00 deg

rees d

) 85 deg

rees

190- If th

e go

verno

r fails, a hyd

raulically o

perated

featherin

g pro

peller

tend

to :

* a) Go

to low

pitch.

b) G

o to

hig

h p

itch.

c) Rem

ain u

nchan

ged

. d

) Flu

ctuate b

etween

hig

h an

d low

pitch

positio

n.

191- How

do

you

remo

ve a den

t from

the ed

ge o

f a steel pro

peller?

a)

Grin

d it o

ut w

ith an

emery w

heel. b

) No

t necessary to

do

anythin

g.

c) F

ill with

solder an

d po

lish o

ff. * d

) File to

a smo

oth

curve ad

po

lish.

192- Wh

at is used

to m

easure th

e ang

le of a p

rop

eller?

a) In

ciden

ce bo

ard.

b) T

ee squ

are. c)

Tim

ing

pro

tector.

* d) B

ub

ble p

rop

eller pro

tractor.

193- Th

e mo

st efficient p

rop

eller form

the th

eoretical stan

dp

oints h

as what

nu

mb

er of b

lades ?

* a) One

b) Tw

o

c) three

d) fo

ur

194- Wh

y do

you

place th

e pro

peller in

low pitch

for take o

ff?

a) T

o keep

the en

gin

e coo

l du

ring

take off.

* b) In

order to

ob

tain m

aximu

m h

orsepow

er. c) N

ot a tru

e statemen

t for all typ

es. d

) To

increase su

ction

throu

gh

carbu

retor intake.

195- Th

e etchin

g p

rocess is used

du

ring

prop

eller overh

aul to

: a)

Iden

tify un

-airwo

rthy co

mp

on

ents.

* b) D

etect blad

e defects.

c) Iden

tify the b

lades.

d) In

dicate th

e overh

aulin

g ag

ency nam

e and

certificate nu

mber.

196- If you

remo

ve the tip

of a m

etal pro

peller b

lade th

at was d

amag

ed,

the o

ther b

lade o

r blad

es sho

uld

be :

a) E

tched

. b

) Re- in

dexed

. * c) S

ho

rtened

the sam

e amo

un

t. d

) all of th

e abo

ve. 197- H

ow is electrical p

ower tran

sferred fro

m th

e hu

b to

the b

lades d

urin

g

electrical deicing ?

* a) S

lip rin

gs &

brush

es. b

) Flexib

le con

necto

rs. c) T

herm

al relays. d

) Co

llector rin

g &

con

tacts.

198- H

ow is d

eicing

fluid

ejected fro

m th

e pro

peller slin

ger rin

g ?

* a) Cen

trifug

al force.

b) C

entrip

etal force.

c) Pu

mp

pressu

re. d

) Ejecto

rs. 199- If n

um

ber o

f blad

es increase p

rop

. Efficien

cy decreases, th

is is du

e to:

a) In

creased w

eigh

t. b

) Co

mp

lexity. c)

Difficu

lty in b

alance.

* d) E

ach b

lade very clo

sely follow

ing

the path

of th

e preced

ing

blad

e. 200- W

here is th

e low p

ressure area w

hen a p

rop

eller is op

erating

?

a) O

n th

e blad

e face. * b

) On

the b

lade b

ack. c) O

n th

e flat side o

f blad

e. d

) In th

e slipstream.

201- Th

e pro

peller is lined

up

on

the cran

kshaft b

y : a)

Co

nes

* b) S

plin

es c) sp

acer d

) retainin

g clam

ps

202- Pro

peller blades are usually checked for track at the: a)

24 inch statio

n.

b) 42-in

ch statio

n.

c) Sh

ank o

f each blad

e. * d

) Tip

of each

blad

e. 203- If yo

u fin

d sm

all transverse cracks in

an alu

min

um

alloy p

rop

eller blad

e yo

u sh

ou

ld :

a) S

aucer th

em o

ut to

a smo

oth

shap

e. b

) Sm

oo

th th

em o

ut w

ith a fin

e ston

e. c)

Reject th

e blad

e as not rep

airable.

* d) R

emo

ve rou

gh

edg

es with

No

.000 emery clo

th .

204- Th

e theo

retical pitch

of a p

rop

eller is determ

ined

by th

e desig

ner an

d is also

kn

own

as : * a) G

eom

etric pitch

. b

) Actu

al pitch

. c) S

um

mary p

itch.

d) S

lipp

age pitch

. 205- A

n en

gin

e run

s satisfactorily in

low pitch

bu

t rou

gh

when

chan

ged

to h

igh

pitch

Th

e most p

rob

able cau

se is: a)

Fau

lty ign

ition

. b

) Imp

rop

er static balance o

f the p

rop

eller. * c) H

igh

pitch sto

ps are set inco

rrectly. d

) Low

pitch sto

ps are set in

correctly.

206- Y

ou

wo

uld

con

vert a left han

d p

rop

eller go

verno

r to a rig

ht han

d p

rop

g

overn

or b

y: a)

Reversin

g th

e pro

peller sh

aft splin

e cou

pler.

b) S

hiftin

g th

e pro

peller g

overn

or b

oo

ster pu

mp

arrang

emen

ts. * c) C

hang

ing

the plu

gs o

r po

rts arou

nd

. d

) Th

ere is no

po

ssible rearran

gem

ent o

f the p

rop

eller mechanism

. 207- P

ropeller flu

id an

ti- icing

systems g

enerally u

se wh

ich of th

e follow

ing

?

a) E

thylen

e glyco

l. * b

) Isop

rop

yl alcoh

ol

c) Den

atured alco

ho

l d

) Eth

yl alcoh

ol

208- Wh

at un

it in th

e pro

peller an

ti icing

system co

ntro

ls the o

utp

ut o

f th

e pu

mp

?

a) P

ressure relief valve.

* b) R

heo

stat. c) C

ycling

timer.

d) C

urren

t limiter.

209- Pro

peller electric deicin

g b

oo

ts can be ch

ecked for o

peratio

n b

y : a)

Ob

serving

the am

meter o

r load m

eter for cu

rrent flow

. b

) Ch

ecking

the am

meter fo

r flickering

and

feeling

the b

oo

ts for

sequ

ence of h

eating

. c)

Tim

ing

the in

flation

and

deflatio

n seq

uence.

* d) F

eeling

them

to d

etermin

e if they are h

ot .

210- Wh

ich o

f the fo

llowin

g determ

ines o

il and

grease sp

ecification

s for

lub

rication

of p

rop

ellers ?

a) F

AA

eng

ineerin

g.

b) A

merican

petro

leum

. c)

En

gin

e man

ufactu

rer * d

) Pro

peller manu

facturer. 211- W

hat is th

e pu

rpose o

f an arb

or u

sed in b

alancing

a pro

peller?

* a) To

sup

po

rt the p

ropeller o

n th

e balan

ce knives.

b) T

o level th

e balance stan

d.

c) To

ind

icate the eigh

t to b

e add

ed o

r remo

ved.

d) T

o m

ark the p

ropeller b

lades w

here w

eigh

ts are to b

e attached.

212- Pro

peller aerod

ynam

ic (TH

RU

ST

) un

balan

ce can b

e largely

elimin

ated b

y: * a) C

orrect b

lade con

tou

ring

and

ang

le setting

. b

) Static b

alancin

g.

c) Dyn

amic b

alancing

. d

) Keep

ing

the p

ropeller blad

es with

in the sam

e plan

e of ro

tation

. 213- W

hy is th

e pu

lley stop

screw o

n a p

rop

eller go

verno

r adju

stable?

* a) T

o lim

it the m

aximu

m en

gine sp

eed d

urin

g takeo

ff. b

) To

main

tain th

e pro

per b

lade an

gle fo

r cruisin

g.

c) To

limit th

e maxim

um

pro

peller p

itch fo

r takeoff.

d) T

o m

aintain

the m

ost efficien

t eng

ine speed

for clim

bin

g.

214- W

hat actio

n takes p

lace when

the cockp

it con

trol lever fo

r a h

ydro

matic,

con

stant sp

eed p

rop

eller is actuated?

* a) Tensio

n o

f the sp

eeder sp

ring

is chang

ed.

b) T

he tran

sfer valve chan

ges p

ositio

n.

c) Th

e go

verno

r bo

oster p

um

p p

ressure is varied

. d

) Th

e go

verno

r byp

ass valve is po

sition

ed to

direct o

il pressu

re to th

e pro

peller dom

e. 215- H

ow is th

e speed

of a h

ydro

matic co

nstan

t speed

pro

peller ch

anged

in flig

ht.

a) B

y varying

the o

utp

ut th

e go

verno

r bo

oster p

um

p.

b) B

y advan

cing

the th

rottle to

a hig

her m

anifo

ld p

ressure.

c) B

y chan

gin

g th

e rotatio

nal speed

of th

e pilo

t valve in th

e govern

or.

* d) B

y chan

gin

g th

e load

tension

against th

e flyweig

hts in

the g

overn

or .

216- Wh

at op

eration

al force cau

ses the g

reatest stress on

a pro

peller?

a)

Aero

dyn

amic tw

isting fo

rce. . * b

) Cen

trifug

al force.

c) Th

rust b

end

ing

force. d

) To

rqu

e ben

din

g fo

rce. 217- W

hat o

peratio

nal fo

rce tend

s to in

crease pro

peller blad

e ang

el ?

a) C

entrifu

gal tw

isting

force.

* b) A

erod

ynam

ic twistin

g fo

rce. c) T

hru

st ben

din

g force.

d) T

orq

ue b

end

ing

force.

218- How

is a pro

peller co

ntro

lled in a large aircraft w

ith a tu

rbo

pro

p

installatio

n?

a)

Ind

epen

den

tly of th

e eng

ine.

b) B

y varying

the en

gin

e RP

M excep

t for feath

ering

and

reversing.

c) B

y varying

the g

ear ration

betw

een th

e pro

peller an

d th

e eng

ine. * d

) By th

e eng

ine p

ower lo

ver. 219- H

ow d

oes th

e aerod

ynam

ic twistin

g fo

rce affect op

erating

pro

peller

blades?

a)

It tend

s to b

end

the blad

es op

posite th

e directio

n o

f rotatio

n.

* b) It ten

ds to

turn

the b

lades to

a hig

h b

lade an

gle.

c) It tend

s to b

end

the blad

es forw

ard.

d) It ten

ds to

turn

the b

lades to

a low b

lade an

gle.

220- Pro

pellers exposed

to salt sp

ray sho

uld

be clean

ed with

: a)

A cau

stic solu

tion

. b

) Steel w

oo

l. c)

Fresh

water.

* d) S

oapy w

ater. 221- W

hich

of th

e follow

ing

fun

ction

s requires th

e use of a p

ropeller b

lade station

?

* a) Measu

ring b

lade an

gle.

b) In

stallation

and

remo

val of p

rop

eller. c) In

dexin

g b

lades.

d) P

rop

eller balan

cing.

222- D

urin

g w

hich

of th

e follow

ing

con

ditio

ns o

f fligh

t will the b

lade p

itch

ang

le of a co

nstan

t speed

pro

peller be the g

reatest ?

a) A

pp

roach

to lan

din

g.

b) C

limb

follow

ing

takeoff.

* c) Hig

h speed

, hig

h altitu

de cru

ising flig

ht.

d) T

akeoff fro

m sea level.

223- Th

e CT

M (cen

trifug

al twistin

g m

om

ent) o

f an o

peratin

g p

rop

eller ten

ds to:

a) In

crease the p

itch ang

le. * b

) Red

uce th

e pitch

ang

le. c) B

end

the b

lades in th

e directio

n o

f rotatio

n.

d) B

end

the b

lades rearw

ard in

the lin

e of flig

ht.

224- Hyd

rom

atic pro

peller pitch

chan

ge gear prelo

ad m

ay be

adju

sted b

y : a)

Mo

ving

the vern

ire prelo

ad lock p

late clockw

ise to in

crease p

reload

and

anticlo

ckwise to

reduce p

reload

. b

) Ad

justin

g th

e stop

plate th

at limits th

e movem

ent o

f the m

ovab

le cam

with

in T

he statio

nary cam

. c)

Varyin

g th

e spid

er shim th

ickness used

betw

een th

e spider

shim

plate an

d the b

lade b

ush

ing

face . * d

) Varyin

g th

e thickn

ess of th

e shims b

etween

the fixed

cam b

ase an

d th

e do

me barrel shelf .

225- Th

e blade an

gle o

f a fixed p

itch p

ropeller:

a) Is g

reatest at the tip

. b

) Is con

stant fro

m th

e hu

b to

the tip

. * c) Is sm

allest at the tip

. d

) Increases in

pro

portio

n to

the d

istance each

section

is from

th

e hu

b.

226- Fo

r takeoff, a con

stant sp

eed p

ropeller is n

orm

ally set in th

e: a)

Hig

h p

itch, h

igh

RP

M p

ositio

n.

b) L

ow p

itch, low R

PM

po

sition

. c)

Hig

h p

itch, low

RP

M p

ositio

n.

* d) L

ow p

itch, high

RP

M p

ositio

n.

227- Wh

ich o

f the fo

llowin

g defects is cause fo

r rejection

of w

ood

p

rop

ellers?

a) S

old

er missin

g fro

m screw

heads secu

ring m

etal tipp

ing

. * b

) An

oversize h

ub

or b

olt, o

r elon

gated

bo

lt ho

les. c) N

o m

oistu

re drain h

oles in m

etal tipp

ing

. d

) No

pro

tective coatin

g o

n p

rop

eller. 228- W

hy is it im

po

rtant th

at nicks in

the lead

ing

edge o

f alum

inu

m

alloy b

lades b

e remo

ved as so

on

as po

ssible ?

a)

To

localize vib

ratory stress.

b) H

orizo

ntal b

alance pu

rpo

ses. c)

To

imp

rove th

e aerod

ynam

ic characteristics o

f the blad

es. * d

) To

elimin

ate the co

nd

ition

wh

ere fatigu

e cracks can start.

229- M

ajor rep

airs to alu

min

um

alloy p

rop

ellers and

blad

es may b

e d

on

e by:

a) A

po

wer p

lant m

echan

ic wo

rking

for a certificated

A&

P

mech

anic. b

) An

y pro

peller m

anu

facturer.

* c) An

app

rop

riately rated rep

air station o

r the m

anu

facturer.

d) A

repairm

an, regard

less of w

here h

e /she w

orks.

230- Geo

metric p

itch o

f a pro

peller is d

efined as th

e: a)

Effective p

itch m

inu

s slipp

age. * b

) Effective p

itch p

lus slip

page.

c) An

gle b

etween

the blad

e cho

rd an

d the p

lane o

f rotatio

n.

d) A

ng

le betw

een the b

lade face an

d th

e plan

e of ro

tation

. 231- W

hat o

peratio

nal fo

rce causes p

rop

eller blade tip

s to lag

in th

e o

pp

osite directio

n o

f rotatio

n?

a)

Th

rust b

end

ing

force.

b) A

erod

ynam

ic twistin

g fo

rce. c)

Cen

trifug

al twistin

g force.

* d) T

orq

ue b

end

ing

force.

232- Wh

at op

eration

al force ten

ds to

ben

d th

e pro

peller b

lades

forw

ard at th

e tip?

a)

To

rqu

e ben

din

g fo

rce. b

) Aero

dyn

amic tw

isting

force.

c) C

entrifu

gal tw

isting fo

rce. * d

) Th

rust b

end

ing

force.

233- Man

ually feath

ering

a hyd

ro m

echan

ical pro

peller m

eans to:

a) B

lock g

overn

or o

il pressu

re to th

e cylind

er of th

e pro

peller.

b) P

ort g

overn

or o

il pressu

re to th

e cylind

er of th

e pro

peller.

* c) Po

rt go

verno

r oil p

ressure fro

m th

e cylind

er of th

e pro

pel