AMS 272 UNIT 3 UPDATED Exam
Questions and verified Answers
|Already Graded A+| 2026 Brand New
Version!!!
What are the 3 places air from the plenum goes? - Correct Answer -1. engine for
combustion
2. load compressor for bleed air
3. fan for cooling
What does the APU do when it shuts down and why? - Correct Answer -Closes it's
bleed air valve to use that air to cool itself down
Importance of EGT monitoring - Correct Answer --shows if APU is running
-monitors how hot the engine is getting and adjusts its bleed air valve for it
What does the APU do when its EGT monitoring system senses increased
temperature? - Correct Answer -the amount of bleed air being sent throughout
aircraft will be reduced (so it can use more of the air to make power)
, APU components in order (the ones he wants us to remember) - Correct Answer -
1. fuel shut off valve (in the wing)
2. fuel heater
3. low pressure filter
(now it's inside the fuel control unit)
4. fuel pump
5. high pressure filter
6. fuel solenoid valve
What do the safety features on the APU do? - Correct Answer -fool it into thinking
its overspeeding so it automatically shuts down
Where is the exciter box usually located? - Correct Answer -in front of accessory
case
Where are the spark igniters located? - Correct Answer -left- 9 o clock
right- 4 o clock
Questions and verified Answers
|Already Graded A+| 2026 Brand New
Version!!!
What are the 3 places air from the plenum goes? - Correct Answer -1. engine for
combustion
2. load compressor for bleed air
3. fan for cooling
What does the APU do when it shuts down and why? - Correct Answer -Closes it's
bleed air valve to use that air to cool itself down
Importance of EGT monitoring - Correct Answer --shows if APU is running
-monitors how hot the engine is getting and adjusts its bleed air valve for it
What does the APU do when its EGT monitoring system senses increased
temperature? - Correct Answer -the amount of bleed air being sent throughout
aircraft will be reduced (so it can use more of the air to make power)
, APU components in order (the ones he wants us to remember) - Correct Answer -
1. fuel shut off valve (in the wing)
2. fuel heater
3. low pressure filter
(now it's inside the fuel control unit)
4. fuel pump
5. high pressure filter
6. fuel solenoid valve
What do the safety features on the APU do? - Correct Answer -fool it into thinking
its overspeeding so it automatically shuts down
Where is the exciter box usually located? - Correct Answer -in front of accessory
case
Where are the spark igniters located? - Correct Answer -left- 9 o clock
right- 4 o clock
