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Home > Training for exam quizzes ATPL, PPL(A), PPL(H), BPL Hot Air, BPL Gas, SPL - Sailplane, EASA Drone > Principles of Flight (Balloon) - Quiz BPL Hot Air - Balloon Pilot License

Quiz Principles of Flight (Balloon) - Quiz BPL Hot Air - Balloon Pilot License

Test 10 Questions Quiz BPL Hot Air - Balloon Pilot License - Principles of Flight (Balloon), no time limit

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1 - At equilibrium the inner overpressure of a free balloon is highest at: At the lower opening. The upper pole. At the center of the hull. At the equator.

2 - The aerostatic lift corresponds to which force? The weight of the balloon less ballast The dynamic force due to airstream across the top of the hull The weight of the displaced air The drag due to airstream around the balloon envelope

3 - Which of the following statements is correct? At higher altitude, sink rate in case of cooling is increased due to less drag by less density. At higher altitude, sink rate by cooling is not increased because due to low density the mass inside the hull is also less. Higher drag at higher altitude prevents increased sink rate in case of cooling. Maximum sink rate must be equal at all altitudes as prescribed by design regulations.

4 - What is the relationship between pressure and volume of a dry gas at constant temperature? The volume increases proportional with pressure The volume increases by a factor of 4 with double pressure The ration between pressure and volume is constant The volume is inversely proportional to pressure

5 - With regard to gases, which statement is correct? Temperature increases with increasing volume and decreasing pressure. Volume increases with increasing temperature and constant pressure. Temperature decreases with increasing pressure and constant volume. Pressure decreases with increasing temperature and constant volume.

6 - The dynamic lift created by airflow across the top of the envelope of a balloon on the ground is referred to as? Lower lift Upper lift False lift Anti-ballast

7 - The final sinkrate of a hot-air ballon is achieved after descent over a vertical distance of: 1000 - 2000 m 50 - 100 m 250 - 450 m 500 - 1000 m

8 - The standard state of gases refers to which temperature? 0° C 15° C 25° C 5° C

9 - The increase in load carrying capability by increasing the hull air temperature by the same temperature difference ... Increases with balloon mass. Increases with altitude. Decreases with sinking. Decreases with altitude.

10 - How do volume, density and temperature change when a gas is being compressed? Volume decreases, density decreases, temperature decreases. Volume decreases, density increases, temperature increases. Volume decreases, density increases, temperature increases Volume increases, density decreases, temperature decreases.

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