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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 Gas - Balloon Pilot License

Quiz Principles of Flight (Balloon) - Quiz BPL Gas - Balloon Pilot License

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

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1 - What is the difference between a gas balloon at or below maximum differential pressure during climb? The balloon at maximum differential pressure climbs with constant rate to unlimited height. The balloon below maximum differential pressure climbs with constant rate up to maximum differential pressure height. The balloon below maximum differential pressure climbs with constant rate to unlimited height. The balloon at maximum differential pressure climbs with constant rate up to maximum differential pressure height.

2 - The force resulting from the (positive) difference from load-bearing capacity and weight force, is referred to as: Load force Upper force Climb force Lift force

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

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

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

6 - What statement is correct with regard to the density of a gas? The density increases with increasing temperature and constant volume. The density decreases with increasing temperature and constant volume. The density decreases with increasing temperature and constant pressure. The density decreases with decreasing volume and constant temperature.

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

8 - Below maximum differential pressure of a gas balloon, temperature increase of the carrying gas by 1K results in: Volume decrease by 0,4% Volume increase by 0,4% Volume increase by 4% Volume decrease by 4%

9 - What statement is correct with regard to change in temperature? During climb, the carrying gas warms due to thermal exchange with envorinmental air. During descent, the carrying gas warms adiabatically. During descent, the carrying gas warms due to thermal exchange with envorinmental air. During climb, the carrying gas warms adiabatically

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

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