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

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

Question 3

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 adjust the altimeter reading for non-standard temperature

Answer

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

Answer

To correct the altimeter reading for system errors

Question 4

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

Accepted Answer

Higher than the true altitude

Answer

Equal to the standard altitude

Answer

Lower than the true altitude

Answer

Equal to the true altitude

Question 5

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 6

The towing rope of a gas balloon can be found on ...

Accepted Answer

The rip panel side

Answer

The sandpourer side

Answer

The sliding side

Answer

The entry side

Question 7

A gas balloon has to be equipped with which tethers?

Accepted Answer

2 at 10 m or 1 at 20 m

Answer

1 at 40 m or 4 at 10 m

Answer

1 at 30 m or 3 at 10 m

Answer

2 at 20 m or 1 at 10 m

Question 8

In which way may an altimeter subscale which is set to an incorrect QNH lead to an incorrect altimeter reading?

Accepted Answer

If the subscale is set to a higher than actual pressure, the indication is too high. This may lead to much closer proximity to the ground than intended

Answer

If the subscale is set to a higher than actual pressure, the indication is too low. This may lead to much greater heights above the ground than intended

Answer

If the subscale is set to a lower than actual pressure, the indication is too high. This may lead to much closer proximity to the ground than intended

Answer

If the subscale is set to a lower than actual pressure, the indication is too low. This may lead to much closer proximity to the ground than intended

Question 9

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 poisoning the air

Question 10

The minimum length of the towing rope is:

Accepted Answer

30 m

Answer

20 m

Answer

50 m

Answer

100 m

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