-
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
