1.
(601) Which 54H60–91 propeller subassembly transmits engine torque to the propeller blades?
A. 
B. 
C. 
D. 
2.
(601) On the 54H60–91 propeller, which component delivers the actual propeller blade angle from
the blade to the control assembly?
A. 
B. 
C. 
D. 
3.
(601) On the 54H60–91 propeller, which is a function of the pitchlock regulator?
A. 
Stops the dome piston from increasing blade angle above 23.3 degrees.
B. 
Prevents the blades from decreasing pitch if hydraulic pressure is lost.
C. 
Prevents the cam bearing rollers from bottoming out in the track slopes.
D. 
Prevents the propeller from going into the beta range whend the throttle is positioned in alpha range
4.
(601) On the 54H60–91 propeller, which pitchlock component mechanically holds the stationary
and rotating pitchlock ratchets apart during reversing and unfeathering operations?
A. 
B. 
Pitchlock ratchet piston.
C. 
Externally threaded ring.
D. 
Externally splined spacer ring.
5.
(601) On the 54H60–91 propeller, which component is used in place of a shim plate on the No. 1
blade?
A. 
B. 
C. 
D. 
6.
6. (601) On the 54H60–91 propeller, which dome assembly part allows the rotating cam to turn while
the stationary cam remains in a fixed position?
A. 
B. 
C. 
D. 
7.
(601) On the 54H60–91 propeller, what function is a task of the low pitch stop assembly?
A. 
Prevents the propeller from going into the beta range when the throttle is positioned in the alpha range.
B. 
Limits cam travel and prevents the propeller from exceeding feather and reverse blade angles.
C. 
Prevents the blades from decreasing pitch if an overspeed condition occurs.
D. 
Transmits engine torque to the blades.
8.
(601) On the 54H60–91 propeller, which component provides a means for balancing the propeller?
A. 
Deicer contact ring holder.
B. 
C. 
D. 
9.
(602) On the 54H60–91 propeller, hydraulic fluid is directed from the pump housing to the barrel
assembly through what component?
A. 
B. 
C. 
D. 
10.
(602) On the 54H60–91 propeller, what is the function of the differential gear train assembly?
A. 
Drives the main and standby pressure pumps.
B. 
Controls operation of the pilot valve and serves as an electrical ground.
C. 
Drives the rotating sleeve when the throttle is positioned in the beta range.
D. 
Transmits blade angle movement to the valve housing and drives the propeller governor flyweights.
11.
(602) On the 54H60–91 propeller, during normal propeller operation, the output of which pumps
is used?
A. 
Main pressure and main scavenge.
B. 
Standby pressure and main scavenge.
C. 
Auxiliary pressure and main pressure.
D. 
Auxiliary pressure and auxiliary scavenge.
12.
(602) On the 54H60–91 propeller, which pump assists the main pressure pump when large blade
angle movements are required?
A. 
B. 
C. 
D. 
13.
(602) On the 54H60–91 propeller, which cam disarms the NTS system linkage when the throttle
is positioned in the beta range?
A. 
B. 
C. 
D. 
14.
(602) On the 54H60–91 propeller, which valve, contained in the valve housing, controls the flow
of hydraulic fluid to and from the dome assembly?
A. 
B. 
C. 
D. 
15.
(602) The 54H60–91 propeller governor speeder spring tension positions the pilot valve to
maintain what percent rpm in the beta range?
A. 
B. 
C. 
D. 
16.
(603) On the 54H60–91 propeller, when the throttle is moved to the GROUND IDLE position,
what degree setting does the coordinator pointer indicate on the protractor?
A. 
B. 
C. 
D. 
17.
(603) What switch, located in the control quadrant, activates the 54H–60–91 propeller governor
speed bias servo assembly as the throttle is moved into the flight idle gate?
A. 
B. 
C. 
D. 
18.
(603) The condition lever GND STOP position is only effective on the ground because the circuits
made in this position are completed through what switches?
A. 
B. 
C. 
D. 
19.
(603) What component in the T56 engine coordinator provides reference signals to the electronic
TD amplifier that are proportional to the desired TIT?
A. 
B. 
C. 
D. 
20.
(604) On the 54H60–91 propeller, the output of what pump is sufficient to supply hydraulic
pressure for normal propeller operation?
A. 
B. 
C. 
D. 
21.
(604) On the 54H60–91 propeller, if the main filter becomes clogged, which valve opens to assure
continued flow?
A. 
B. 
C. 
D. 
22.
(604) On the 54H60–91 propeller, which valve sets and maintains a pressure differential of about
100 psi between system pressure and the increase- or decrease-pitch pressure?
A. 
B. 
C. 
D. 
23.
(604) On the 54H60–91 propeller, when the backup valve is opened, the hydraulic pressure routed
to the governor pilot valve is used for which operation?
A. 
B. 
C. 
D. 
24.
(604) On the 54H60–91 propeller, which pump is used to feather or unfeather the propeller during
static propeller operation?
A. 
B. 
C. 
D. 
25.
(604) On the 54H60–91 propeller, which type of valve opens to allow the output of the standby
pump to combine with the output of the main pump?
A. 
B. 
C. 
D.