Aircraft General Knowledge - BPL Hot Air - Balloon Pilot License

Question 1

The vapour pressure of propane gas in a bottle depends in particular on:

Accepted Answer

The temperature

Answer

The rigidity of the bottle

Answer

The size of the bottle

Answer

The gas amount

Question 2

Which of the gases stated below is NOT made up from hydrocarbons?

Accepted Answer

Hydrogen

Answer

Propane

Answer

Butane

Answer

Methane

Question 3

Liquefaction 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 4

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 5

The hull fabric of a hot-air balloon undergoes the most continuous thermal stress in which area?

Accepted Answer

At the top area

Answer

In the apron area

Answer

In the lower third

Answer

At the equator

Question 6

The parapet height of a hot-air balloon basket is at least:

Accepted Answer

100 cm, in commercial operation 110 cm

Answer

80 cm, in commercial operation 100 cm

Answer

120 cm, in commercial operation 130 cm

Answer

110 cm, in commercial operation 110 cm

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

The carrying ropes of a hot-air balloon are made up from:

Accepted Answer

Stainless steel

Answer

Manila rope

Answer

Copper

Answer

Duralum

Question 9

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 10

What is indicated by a red line on the hull thermometer with an analog scale?

Accepted Answer

The maximum permissible value

Answer

The minimum permissible value

Answer

The take-off temperature

Answer

The recommended operating value

Exam questions Aircraft General Knowledge - BPL Hot Air - Balloon Pilot License

BPL Hot Air - Balloon Pilot License: Aircraft General Knowledge 10 Questions no time limit