Aircraft General Knowledge - BPL Hot Air - Balloon Pilot License

Question 1

Why should a liquid gas bottle only be filled to 80% of its volume?

Accepted Answer

To provide space for temperature-induced expansion

Answer

Because temperature would get too high

Answer

Because it would get too heavy otherwise

Answer

To provide space for expansion in case of external cooling

Question 2

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 3

The boiling point of propane gas at atmospheric conditions is:

Accepted Answer

- 42 °C

Answer

+ 5 °C

Answer

- 23 °C

Answer

0 °C

Question 4

The hull load of a hot-air balloon is carried by ...

Accepted Answer

The carrying ropes

Answer

By the towing ropes

Answer

By the top ropes

Answer

The fixing ropes

Question 5

The altimeter's reference scale is set to airfield pressure (QFE). What indication is shown during the flight?

Accepted Answer

Height above airfield

Answer

Pressure altitude

Answer

Altitude above MSL

Answer

Airfield elevation

Question 6

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 7

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 8

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 9

A true altitude is...

Accepted Answer

An altitude above mean sea level corrected for non-standard temperature

Answer

A height above ground level corrected for non-standard pressure

Answer

A height above ground level corrected for non-standard temperature

Answer

A pressure altitude corrected for non-standard temperature

Question 10

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

Accepted Answer

Stainless steel

Answer

Manila rope

Answer

Copper

Answer

Duralum

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

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

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