APU Emergency Shutdown Procedures
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What is the first step in an emergency shutdown?
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Place AGENT DISCHARGE/AGENT DISCH switch to NO. 1 and release.
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Notify all personnel to evacuate airplane.
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Pull APU fire control handle.
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Run to the smoke pit.
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This is a familiarization of the APU emergency shutdown procedures.
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- 2.
Step 5 states to:
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Notify all personnel to evacuate airplane.
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Monitor fire area and stand by with fire extinguisher until assistance arrives.
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Request fire department assistance.
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Place the APU CONTROL/APU switch to STOP.
Correct Answer
A. Monitor fire area and stand by with fire extinguisher until assistance arrives.Explanation
The correct answer is to monitor the fire area and stand by with a fire extinguisher until assistance arrives. This step is important to ensure the safety of personnel and to prevent the fire from spreading or causing further damage. By monitoring the fire area, one can assess the situation and take necessary actions if needed. Standing by with a fire extinguisher allows for immediate response in case the fire worsens or poses a threat. Waiting for assistance to arrive ensures that trained professionals can handle the situation effectively and safely.Rate this question:
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- 3.
9. Place EXT ___ PWR switch to OFF.
Correct Answer
ACExplanation
The correct answer is AC because it is the correct option to complete the sentence. The sentence instructs the reader to place the "EXT ___ PWR switch" to OFF, and the only option that fits in the blank space is AC. This suggests that the reader should turn off the external AC power by selecting the AC option.Rate this question:
- 4.
Hold the AGENT DISCHARGE/AGENT DISCH switch to NO. 1for at least five seconds.
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True
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False
Correct Answer
A. FalseExplanation
Do not hold the AGENT DISCHARGE/
AGENT DISCH switch to NO. 1 or NO. 2
for more than two seconds.Rate this question:
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- 5.
At what step would you place the BLEED AIR VALVE/BL AIR switch toCLOSE/OFF.
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Step 2
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Step 7
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Step 11
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Step 5
Correct Answer
A. Step 7Explanation
The correct answer is Step 7 because this is the step where the BLEED AIR VALVE/BL AIR switch should be placed to CLOSE/OFF. Placing the switch in this position will shut off the flow of bleed air, which is necessary in certain situations such as during engine start or in the event of a bleed air leak.Rate this question:
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- 6.
Step 8 states:
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Place the APU GENERATOR/APU switch to the OFF or OFF/RESET position.
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Place EXT DC PWR switch to OFF.
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Notify all personnel to evacuate airplane.
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Request fire department assistance.
Correct Answer
A. Place the APU GENERATOR/APU switch to the OFF or OFF/RESET position.Explanation
In step 8, the correct answer is to place the APU GENERATOR/APU switch to the OFF or OFF/RESET position. This action is necessary in an emergency situation to shut off the APU generator and prevent any potential electrical hazards. By turning off the APU generator, the risk of fire or further damage can be minimized.Rate this question:
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- 7.
What can happen if the AGENT DISCHARGE/AGENT DISCH is held for too long?
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It may cause fire to become uncontrollable.
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System will work as intended.
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It may cause the synchrophaser circuit breaker to trip and the synchrophaser system to become inoperative.
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It may cause the fire extinguisher circuit breaker to trip and the fire extinguisher system to become inoperative.
Correct Answer
A. It may cause the fire extinguisher circuit breaker to trip and the fire extinguisher system to become inoperative.Explanation
If the AGENT DISCHARGE/AGENT DISCH is held for too long, it may cause the fire extinguisher circuit breaker to trip and the fire extinguisher system to become inoperative. This means that the system designed to extinguish the fire will no longer be able to function, potentially allowing the fire to continue spreading and becoming uncontrollable.Rate this question:
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- 8.
8. Place the _________________ switch to the___ or _________ position.
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APU CONTROL/APU switch
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APU GENERATOR/APU switch
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OFF
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STOP
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OFF/RESET
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CLOSE/OFF
Correct Answer(s)
A. APU GENERATOR/APU switch
A. OFF
A. OFF/RESETExplanation
The correct answer is to place the APU GENERATOR/APU switch to the OFF position and the OFF/RESET position. This means that the switch controlling the APU generator should be turned off, and the switch should also be in the off or reset position.Rate this question:
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- 9.
Which step instructs to request fire department assistance?
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Step 3
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Step 2
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Step 7
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Step 10
Correct Answer
A. Step 3Explanation
Step 3 instructs to request fire department assistance. This implies that this step contains the necessary information or action to be taken in order to contact the fire department for help.Rate this question:
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- 10.
At what point does the job guide instruct to have all personnel evacuate airplane and area immediately, if fire becomes severe?
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Step 5
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CAUTION
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WARNING
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Step 1
Correct Answer
A. WARNINGExplanation
The correct answer is "WARNING" because in emergency situations, a warning is given to indicate that the fire has become severe and immediate evacuation of all personnel from the airplane and the surrounding area is necessary for their safety. The warning serves as a clear signal to take immediate action and prioritize the safety of individuals.Rate this question:
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- 11.
10. Place EXT ___ PWR switch to OFF.
Correct Answer
DCExplanation
The correct answer is DC because in this context, "EXT" most likely refers to an external power source, and "PWR" stands for power. Therefore, "Place EXT ___ PWR switch to OFF" means to turn off the external power source.Rate this question:
- 12.
The job guide states that this procedure requires 3 personnel - Mech A, B and C.
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True
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False
Correct Answer
A. FalseExplanation
It only requires Mech A and B.Rate this question:
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- 13.
What work package is the emergency shutdown procedures located?
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49-00-1
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49-00-2
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49-00-3
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49-00-10
Correct Answer
A. 49-00-3 -
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Current Version
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Mar 20, 2023Quiz Edited by
ProProfs Editorial Team -
Dec 04, 2010Quiz Created by
Ewilds
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