23. MODULE 17A (B1) — PROPELLER

32 multi-choice. Time allowed 40 minutes.

1 / 32

How does a propeller synchrophasing system allow the pilot to minimise cabin noise and vibration?

2 / 32

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

3 / 32

If an aircraft is placed into a dive from cruise flight, what will happen to the propeller?

4 / 32

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

5 / 32

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

6 / 32

What type of electrical supply powers the propeller de-icing system on large aircraft?

7 / 32

If the spur gear pump in a single-acting propeller governor fails, in which direction will the blades move?

8 / 32

What is the most probable cause of galling and wear on propeller cone or hub cone seats?

9 / 32

When a propeller pitch change mechanism preserved in inhibiting oil is being returned to service, what must be done with that oil?

10 / 32

Where is the adjustment for maximum propeller RPM made on a constant-speed governor?

11 / 32

When governor spring tension is reduced, the blades coarsen and what happens to RPM and manifold pressure?

12 / 32

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

13 / 32

What does a low-torque sensing system use as the trigger to initiate a specific propeller action?

14 / 32

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

15 / 32

How long a period of non-use is generally classed as temporary (short-term) storage for an aircraft?

16 / 32

On a constant-speed non-feathering McCauley or Hartzell propeller without counterweights, what mechanism moves the blades toward coarser pitch?

17 / 32

What thrust advantage does a ducted (shrouded) propeller offer compared with an unducted one?

18 / 32

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

19 / 32

If the flight fine pitch lock fails during cruise flight, what indication would appear in the flight deck?

20 / 32

In a hydromatic propeller, what does the hydraulic pitch lock mechanism prevent during an overspeed condition?

21 / 32

In the beta (ground) range, if the power lever is moved forward to increase fuel flow, what happens to blade angle?

22 / 32

How does a constant-speed propeller achieve maximum efficiency across flight conditions?

23 / 32

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

24 / 32

In a twin-engine turboprop system using FADEC, which synchronisation method is most likely employed?

25 / 32

In a hydromatic propeller, what does the holding coil of the feathering button switch maintain power to?

26 / 32

What type of reduction gear system is commonly used in a turboprop engine?

27 / 32

When does an unbalanced propeller produce the greatest vibration?

28 / 32

If the hydraulic safety stop activates, in which direction is propeller pitch movement permitted?

29 / 32

In what position should the constant-speed propeller control be placed when carrying out the magneto check?

30 / 32

From which two references is propeller blade angle measured?

31 / 32

What does a propeller pitch lock system protect against?

32 / 32

How is the power output of a turboprop engine assessed during operation?

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