Aircraft General Knowledge - PPL(A) - Private Pilot License

Question 1

Which is the purpose of the altimeter subscale?

Accepted Answer

To reference the altimeter reading to a predetermined level such as mean sea level, aerodrome level or pressure level 1013.25 hPa

Answer

To set the reference level for the altitude decoder of the transponder

Answer

To adjust the altimeter reading for non-standard temperature

Answer

To correct the altimeter reading for system errors

Question 2

With increasing altitude and unchanged mixture setting, the air/fuel mixture...

Accepted Answer

Becomes richer.

Answer

Becomes more lean

Answer

Stays constant

Answer

Becomes liquid

Question 3

A horizontal situation indicator (HSI) combines the information provided by...

Accepted Answer

The directional gyro and the VHF navigation receiver.

Answer

The directional gyro and the flight director.

Answer

The rate gyro and the slip indicator

Answer

The attitude indicator and the flight director.

Question 4

What is the reason for static dischargers on aircraft?

Accepted Answer

To discharge static charging during flight

Answer

To ensure grounding during refueling

Answer

To eliminate electrical interferences during intensive radio traffic

Answer

To improve the quality of radio transmission in high altitudes

Question 5

What does the octane rating or fuel grade describe?

Accepted Answer

Anti-knock rating

Answer

Flame front speed

Answer

Ignition timing

Answer

Combustion temperature

Question 6

When trimming an aircraft nose up, in which direction does the trim tab move?

Accepted Answer

It moves down

Answer

Depends on CG position

Answer

It moves up

Answer

In direction of rudder deflection

Question 7

A flight level is a...

Accepted Answer

Pressure altitude.

Answer

Density altitude

Answer

Altitude above ground

Answer

True altitude.

Question 8

In which phase of flight must the carburettor heating be switched off although carburettor icing might be expected?

Accepted Answer

During take-off

Answer

During climb

Answer

During cruise

Answer

During taxi

Question 9

Which constructional elements give the wing its profile shape?

Accepted Answer

Rips

Answer

Planking

Answer

Spar

Answer

Tip

Question 10

Reasons for dents in the helicopter structure are...

Accepted Answer

Hard landing or excessive stress.

Answer

Material defects or old colour.

Answer

Intense erosion or high wear.

Answer

Excessive engine rpm and cylinder defects.

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