C-130h APU (Auxiliary Power Unit) Quiz
- 1.You must first _________before applying bleed air?
- A.
Turn on the AC inverter
- B.
Clear the A/C packs
- C.
Clear the propellers
- D.
Inspect the engine intake and exhaust
- 2.The cool down time after removing a load from the APU is _____ minutes.
- A.
1
- B.
4
- C.
2
- D.
3
- 3.The Job Guide for APU operation is:
- A.
1C-130H-2-70JG-00-1
- B.
1C-130E-2-49JG-00-1
- C.
1C-130H-2-05JG-00-1
- D.
1C-130H-2-49JG-00-1
- 4.The APU starter duty cycle is:
- A.
1 minute on, 2 minutes off
- B.
2 minutes on, 1 minute off
- C.
1 minute on, 4 minutes off
- D.
I minute on, 1 minute off
- 5.What is the first thing that is done before running the APU?
- A.
Clear the props
- B.
Clear the APU
- C.
Check the aircraft forms
- D.
Service the APU oil
- 6.The APU oil tank is located _________.
- A.
In the cargo compartment
- B.
In the left wheel well
- C.
Aft of the APU in the left wheel well forward fairing
- D.
Underneath the APU
- 7.What is the frequency range of the APU generator?
- A.
300-400 Hz
- B.
380-420 Hz
- C.
112-118 Hz
- D.
120-240 Hz
- 8.The APU oil tank and system oil quantity is ___ US quarts.
- A.
4
- B.
5
- C.
7
- D.
6
- 9.Which radio is used for communication to the tower and for emergency calls?
- A.
VHF
- B.
UHF
- C.
HF
- D.
SCNS
- 10.Where is the APU fuel strainer located?
- A.
In the number 2 dry bay
- B.
Underneath the right forward wheel well fairing
- C.
Underneath the APU compartment
- D.
On the bottom of the left wheel well fairing at the inboard aft corner of the APU compartment
- 11.Which bus supplies power to the APU control circuit?
- A.
Main DC
- B.
Essential AC
- C.
Isolated DC
- D.
Essential DC
- 12.The APU receives its fuel from __________________.
- A.
Crossfeed manifold
- B.
#3 main tank
- C.
#2 main tank
- D.
Refuel manifold
- 13.The APU system includes:
- A.
APU door, APU, ATM, APU fuel supply, exhaust and oil subsytems
- B.
APU, APU door, APU fuel supply/ignition/starting, the bleed air and APU indicating
- C.
The APU door, APU, APU fuel supply/ignition/staring, the bleed air, APU control, APU exhaust and oil supply subsystems
- D.
The APU, APU control, APU indicating, the ATM, exhaust and oil supply
- 14.You must shut down the APU if the START light does not go out within ___________.
- A.
2 minutes
- B.
1 minute
- C.
30 seconds
- D.
1.5 minutes
- 15.The APU supplies what?
- A.
Electrical power and bleed air for starting engines
- B.
Bleed air for starting engines and operating other bleed air systems
- C.
Electrical power
- D.
Hydraulic power
- 16.What is the voltage range of the APU generator?
- A.
110-120v
- B.
120-240v
- C.
110-118v
- D.
112-118v
- 17.The purpose of draining the fuel strainer is to ensure that:
- A.
There is fuel in the system
- B.
The fuel shutoff valve is open
- C.
The fuel shutoff valve is closed
- D.
There is no dirt in the system
- 18.The APU bleed air check from 30 to 15 psi should be no less than ____________.
- A.
8.5 seconds
- B.
20 seconds
- C.
16 seconds
- D.
18 seconds
- 19.If an overspeed condition exists, what shuts down the APU?
- A.
95% switch
- B.
The three speed switch
- C.
110% switch
- D.
Centrifugal switch
- 20.Under normal conditions,the APU must warm up ___ minutes before applying a load.
- A.
1
- B.
2
- C.
3
- D.
4
- 21.Where is the APU located?
- A.
In the left wheel well
- B.
Underneath the pilot and copilot
- C.
In the forward left wheel well fairing
- D.
Forward of the left wheel well fairing
- 22.How many quarts does the APU oil tank hold?
- A.
3
- B.
4
- C.
5
- D.
6
- 23.The minimum battery voltage for operating the APU is _____.
- A.
28v
- B.
24v
- C.
21v
- D.
12v
- 24.What happens at 95% RPM?
- A.
The 95% switch shuts down the APU
- B.
The ON SPEED light goes out
- C.
The START light goes out
- D.
The ON SPEED light comes on
- 25.A FIRE condition in the APU is identified by:
- A.
A steady light in the APU handle and a flashing MASTER CAUTION light
- B.
A flashing light in the APU handle and a flashing MASTER CAUTION light
- C.
A flashing light in the APU handle and a steady FIRE light
- D.
A steady light in the APU handle and a steady FIRE light
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