Aircraft General Knowledge - Quiz BPL Hot Air - Balloon Pilot License

Question 1

A pilot burner which is fed by the gas phase, works by which principle?

Accepted Answer

Bunsen principle

Answer

Electrostatic principle.

Answer

Aerostatic principle.

Answer

Aerodynamic principle

Question 2

A vertical speed indicator measures the difference between...

Accepted Answer

Instantaneous static pressure and previous static pressure.

Answer

Dynamic pressure and total pressure.

Answer

Total pressure and static pressure.

Answer

Instantaneous total pressure and previous total pressure.

Question 3

Which instrument can be affected by the hysteresis error?

Accepted Answer

Altimeter

Answer

Tachometer

Answer

Direct reading compass

Answer

Vertical speed indicator

Question 4

QFE is the...

Accepted Answer

Barometric pressure at a reference datum, typically the runway threshold of an airfield.

Answer

Magnetic bearing to a station

Answer

Barometric pressure adjusted to sea level, using the international standard atmosphere (ISA).

Answer

Altitude above the reference pressure level 1013.25 hPa.

Question 5

During a flight in an air mass with a temperature equal to ISA and the QNH set correctly, the indicated altitude is...

Accepted Answer

Equal to the true altitude.

Answer

Equal to the standard atmosphere.

Answer

Lower than the true altitude.

Answer

Higher than the true altitude.

Question 6

What values are usually marked with a red line on instrument displays?

Accepted Answer

Operational limits

Answer

Caution areas

Answer

Recommended areas

Answer

Operational areas

Question 7

During a flight in colder-than-ISA air the indicated altitude is...

Accepted Answer

Higher than the true altitude

Answer

Lower than the true altitude.

Answer

Equal to the standard altitude.

Answer

Equal to the true altitude.

Question 8

Which gas is heavier than air?

Accepted Answer

Propane

Answer

Hydrogen

Answer

Helium

Answer

Illuminating gas

Question 9

Liquifaction of propane gas results in a reduction in volume to what fraction of the gas volume?

Accepted Answer

1/260

Answer

1/160

Answer

1/360

Answer

1/60

Question 10

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 correct the altimeter reading for system errors

Answer

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

Answer

To adjust the altimeter reading for non-standard temperature

Quiz Aircraft General Knowledge - Quiz BPL Hot Air - Balloon Pilot License

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