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Home > Training for exam quizzes ATPL, PPL(A), PPL(H), BPL Hot Air, BPL Gas, SPL - Sailplane, EASA Drone, FAA 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 - 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.

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

3 - 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

4 - The ratio between air pressures at different heights is referred to as: Pressure number Height value Height ratio Height number

5 - With pressure and temperature given, any gas being heavier or lighter than air depends on what? On the mean kinetic energy of the molecules On the molecule mass of the gas On the content of water vapour in the gas On the number of gas molecules

6 - Aerostatic lift, amongst other factors, depends on... Shape of the envelope. On the speed. Balloon mass. Air density.

7 - According ISA, what is the density of air at MSL? 1.225 g/m3 1225 kg/m3 12.25 kg/m3 1.225 kg/m3

8 - 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.

9 - 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

10 - What effect has an increase in air temperature inside the hull of a hot air balloon by a given difference in temperature? The increase in load carrying capacity increases with height. The increase in load carrying capacity decreases with height. The increase in rate of climb increases with height. The reduction in sink rate increases with height.

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