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

Question 1

Which instrument can be affected by the hysteresis error?

Accepted Answer

Altimeter

Answer

Tachometer

Answer

Direct reading compass

Answer

Vertical speed indicator

Question 2

Under which conditions false readouts are possible on hull thermometers using radio communication from sensor to indicator panel?

Accepted Answer

When the sensor battery is almost empty

Answer

When radio messages are received

Answer

When the hull temperature exceeds 110 °C

Answer

When there is no intervisiblity to temperature sensor

Question 3

The main blast valve is located where?

Accepted Answer

At the burner

Answer

At the main cylinder

Answer

At the hull equator

Answer

At the upper hull part

Question 4

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 5

Which of the following options states the working principle of a vertical speed indicator?

Accepted Answer

Measuring the present static air pressure and comparing it to the static air pressure inside a reservoir

Answer

Total air pressure is measured and compared to static pressure

Answer

Static air pressure is measured and compared against a vacuum

Answer

Measuring the vertical acceleration through the displacement of a gimbal-mounted mass

Question 6

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 7

With web-less balloon hulls, the load is connected to:

Accepted Answer

The load belt.

Answer

The towing rope.

Answer

The pull-rope

Answer

The basket rope.

Question 8

A flight level is a...

Accepted Answer

Pressure altitude.

Answer

True altitude

Answer

Density altitude.

Answer

Altitude above ground.

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

About the lower end of the pull rope of a hot-air balloon it can be said:

Accepted Answer

It is particularly heat resistant.

Answer

It has an especially smooth surface.

Answer

It is fixed to the lower basket area

Answer

It has to be lubricated before every take-off

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

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