Quiz BPL Gas - Balloon Pilot License

Question 1

At time of take-off, ground wind speed is 3 m/s. Along take-off flight path, at a distance of 270 m obstacles erect up to 40 m. What is the minimum rate of climb to keep a clearance of 50 m above the obstacles? (Consider double the ground wind speed for the flight path)

Accepted Answer

2 m/s

Answer

1 m/s

Answer

1.5 m/s

Answer

0.5 m/s

Question 2

The movement of air flowing together is called...

Accepted Answer

Convergence.

Answer

Subsidence.

Answer

Divergence.

Answer

Soncordence.

Question 3

While overflying a waypoint, it is stated that a distance of 3 NM has been taken 10 min. What will be the expected time of endurance for the complete distance of 18 NM?

Accepted Answer

60 min

Answer

90 min.

Answer

12 min

Answer

180 min.

Question 4

After take-off with a balloon, obstacles at a distance of 300 m erect in expected flight path up to 40 m height. Rate of climb is expected with 1.5 m/s. What maximum actual wind speed can be accepted to maintain a clearance of 50 m above obstacles, assuming double the actual wind speed for calculation?

Accepted Answer

2.5 m/s

Answer

8 m/s

Answer

10 m/s

Answer

1 m/s

Question 5

Carbon monoxide poisoning can be caused by...

Accepted Answer

Smoking.

Answer

Unhealthy food

Answer

Alcohol.

Answer

Little sleep.

Question 6

Given the following masses: Empty mass 240 kg Instruments 20 kg per gas container (full): 30 kg per person: 80 kg Up to which pressure altitude can the balloon climb with 5 persons and 4 gas containers in the basket, assuming temperatures 10° below ISA? (use attachment ECQB-PPL_BPL001) Siehe Anlage 1

Accepted Answer

17000 ft

Answer

3000 ft

Answer

13000 ft

Answer

7000 ft

Question 7

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

Static air pressure is measured and compared against a vacuum

Answer

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

Answer

Total air pressure is measured and compared to static pressure

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

How does the norm height of a gas balloon with maximum differential pressure change by dropping ballast?

Accepted Answer

It increases by 80 m when total mass is reduced by 1%

Answer

It increases by 8 m when total mass is reduced by 10%.

Answer

It decreases by 8 m when total mass is reduced by 10%.

Answer

It decreases by 80 m when total mass is reduced by 1%.

Question 10

Mountain side updrafts can be intensified by ...

Accepted Answer

Solar irradiation on the windward side

Answer

Solar irradiation on the lee side

Answer

Thermal radiation of the windward side during the night

Answer

By warming of upper atmospheric layers

Examination quizzes Quiz BPL Gas - Balloon Pilot License

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