Aircraft General Knowledge - Quiz BPL Gas - Balloon Pilot License

Question 1

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 2

QFE is the...

Accepted Answer

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

Answer

Altitude above the reference pressure level 1013.25 hPa.

Answer

Magnetic bearing to a station.

Answer

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

Question 3

The measurement of altitude is based on the change of the...

Accepted Answer

Static pressure.

Answer

Dynamic pressure.

Answer

Differential pressure.

Answer

Total pressure.

Question 4

What is the purpose of the closing rope of a gas balloon?

Accepted Answer

To close the appendix

Answer

To close the sand disposer

Answer

To close the emergency opening

Answer

To secure the towing rope

Question 5

Lower-than-standard temperature may lead to...

Accepted Answer

An altitude indication which is too high.

Answer

A correct altitude indication as long as the altimeter subscale is set to correct for non-standard temperature.

Answer

An altitude indication which is too low.

Answer

A blockage of the Pitot tube by ice, freezing the altimeter indication to its present value

Question 6

The vertical speed indicator measures the difference of pressure between...

Accepted Answer

The present static pressure and the static pressure of a previous moment.

Answer

The present dynamic pressure and the dynamic pressure of a previous moment.

Answer

The present total pressure and the total pressure of a previous moment.

Answer

The present dynamic pressure and the static pressure of a previous moment

Question 7

The burst of a hydrogen pressure line may result in what risk?

Accepted Answer

The risk of hydrogen self-igniting and burning with invisible flame.

Answer

The risk of hydrogen collecting in the basket and causing breath shortness.

Answer

The risk of hydrogen self-igniting and burning with a bright flame.

Answer

The risk of hydrogen dissipating to the atmosphere and poisening the air

Question 8

A flight level is a...

Accepted Answer

Pressure altitude.

Answer

True altitude

Answer

Density altitude.

Answer

Altitude above ground.

Question 9

The assembly of the panels to the hull of a web-less gas balloon is done ...

Accepted Answer

By glueing.

Answer

By vulcanisation.

Answer

By stitching.

Answer

By welding

Question 10

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

Higher than the true altitude.

Answer

Lower than the true altitude.

Answer

Equal to the standard atmosphere.

Quiz Aircraft General Knowledge - Quiz BPL Gas - Balloon Pilot License

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