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

Question 1

What is the purpose of the vapourizor coils of the burner system?

Accepted Answer

To heat the liquid gas, so it will vapourize immediately after exiting the burner nozzle

Answer

To induce a rotation movement in the liquid gas to get a better mixture

Answer

For cooling of the liquid gas after exiting the burner nozzles

Answer

To vapourize the liquid gas, so it will be emitted from the burner nozzle in gasous form

Question 2

What amount of ignitable mixture can be made from 1 L (0,001 m3) liquid propane gas?

Accepted Answer

12 m3

Answer

0,38 m3

Answer

0,26 m3

Answer

1,2 m3

Question 3

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

Accepted Answer

The maximum permissable value

Answer

The minimum permissable value

Answer

The take-off temperature

Answer

The recommended operating value

Question 4

What ist the purpose of the sounding pipe valve?

Accepted Answer

To indicate the volumetric filling limit.

Answer

It allows pressure equalization during cruise at high altitude

Answer

It prevents air from entering the burner system

Answer

For venting the liquid gas container bottle.

Question 5

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 6

The hull of a hot-air balloon is made up by which material?

Accepted Answer

Synthetic fabric

Answer

Silk fabric

Answer

Linen fabric

Answer

Cotton fabric

Question 7

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

Accepted Answer

Stainless steel

Answer

Manila rope

Answer

Copper

Answer

Duralum

Question 8

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 9

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 to heavy otherwise.

Answer

To provide space for expansion in case of external cooling

Question 10

The electronic remote hull thermometer of a hot-air balloon is operating by which principle?

Accepted Answer

Resistance- / Semiconductor principle.

Answer

Venturi principle

Answer

Boyle principle.

Answer

Bernoulli principle.

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

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