23. MODULE 17A (B1) — PROPELLER

32 multi-choice. Time allowed 40 minutes.

1 / 32

Which tapered propeller installation cone is split into two halves and carries serial numbers?

2 / 32

What is the correct policy for propeller securing plate circlips after removal?

3 / 32

What material are metal fixed-pitch propellers typically manufactured from?

4 / 32

What does preloading propeller blades before installation achieve?

5 / 32

As a propeller blade moves through the air, which two aerodynamic forces are produced?

6 / 32

What angle of attack characterises a windmilling propeller?

7 / 32

When the force on the governor speeder spring is increased and RPM rises to match, what adjustment does the governor make to blade angle?

8 / 32

At what spanwise intervals are measurements normally taken along a propeller blade section?

9 / 32

A constant-speed variable-pitch propeller is running on the ground facing into a headwind. What effect does the headwind have on propeller RPM?

10 / 32

What does a propeller pitch lock system protect against?

11 / 32

Why are regular resistance checks performed on electrically de-iced propeller slip rings?

12 / 32

What blade angle is associated with a feathered propeller?

13 / 32

When are blade angle adjustments carried out on a variable-pitch propeller?

14 / 32

On an aircraft fitted with a propeller brake, what system is the interlock connected to?

15 / 32

Which of the following statements about propeller blade angle is incorrect?

16 / 32

In a windmilling condition, what effect does the aerodynamic twisting moment (ATM) have on the centrifugal twisting moment (CTM)?

17 / 32

Which methods are acceptable for marking blade stations on a propeller blade during inspection?

18 / 32

If the true airspeed of an aircraft increases, how does the constant-speed unit respond?

19 / 32

How should a wooden propeller be wrapped during storage?

20 / 32

Under which flight condition does an offset fin most effectively counteract propeller slipstream effect?

21 / 32

On a free turbine turboprop, how can propeller RPM be adjusted while keeping gas-generator RPM constant?

22 / 32

What range of blade angles does the Beta operating range encompass?

23 / 32

At which blade angle setting does a propeller blade absorb the greatest amount of power?

24 / 32

When a reversing propeller moves toward maximum reverse blade angle, through which sequence of positions does it pass?

25 / 32

What happens to engine RPM when a fixed-pitch propeller aircraft is ground-run with its tail into wind?

26 / 32

How is the operation of a propeller electrical de-icing system monitored from the flight deck?

27 / 32

In an on-speed (correctly governed) condition, how does oil behave in the governor pilot valve tube?

28 / 32

How does a multi-engine aircraft synchronising system maintain equal RPM across all propellers?

29 / 32

If a continuous line of indentations is found across more than 25% of the chord at one blade section, what is the correct disposition?

30 / 32

On what operating principle is the hydromatic variable-pitch propeller based?

31 / 32

What happens to the centrifugal twisting moment (CTM) acting on propeller blades as rotational speed increases?

32 / 32

Along the span of a propeller blade, where is thrust produced most effectively?

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