AMS 273 Unit 4 Exam Questions and Answers

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AMS 273 Unit 4 Exam Questions and Answers

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2025/2026

Institution AMS 273

Course AMS 273

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AMS 273 Unit 4 Exam Questions and Answers

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AMS 273 Unit 4 Exam Questions and
Answers
Question 1
Where is the underspeed fuel governor located on the TPE?
Correct Answer
FCU

Question 2
How do we unfeather PT6?
Correct Answer
Start the engine

Question 3
What is the blade angle approximately in Feather, Flight Idle, Locks, Ground Idle and
Reverse?
Correct Answer
Feather: 85-90
Flight Idle: 10-12
Locks (only TPE): 1-2
Ground Idle: 0
Reverse: -2 to -8

Question 4
How do avoid going into reverse in flight?
Correct Answer
WOW/Squat switch or air speed sensor

Page 1 of 10

, Question 5
What are the three connections on the beta cams?
Correct Answer
Power Lever
Top of reversing lever
Control Unit

Question 6
In beta mode for the TPE what component controls the blade angle?

Correct Answer
PPC Sleeve

Question 7
What determines the position of the prop governor/ pilot valve/flyweights in beta
mode on PT6?
Correct Answer
power turbine governor

Question 8
What does the NTS actuate on the TPE?
Correct Answer
Feather valve

Question 9
What are the three connections to the reversing lever and their location?
Correct Answer
Top: Power Lever
Middle: Beta Valve
Bottom: Carbon Block (Feedback mechanism)

Page 2 of 10

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Uploaded on: July 31, 2026
Number of pages: 10
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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