Test 10 Questions Quiz BPL Hot Air - Balloon Pilot License, no time limit

1 - What is the call sign of the flight information service?
2 - At temperature below 0 Β°C the pressure at the burner is at 0,2 MPa (2 bar). Is take-off permissable with the hot air balloon?
3 - Air consists of oxygen, nitrogen and other gases. What is the approximate percentage of other gases?
4 - Before buildup, the buildup team has to be informed about correct behaviour at sudden critical situations how?
5 - The maximum number of passengers can be found ...
6 - In which way may an altimeter subscale which is set to an incorrect QNH lead to an incorrect altimeter reading?
7 - At which conditions does the arm blower have the highest effeiciency?
8 - What is the status of the rules and procedures created by the EASA? (e.g. Part-SFCL, Part-MED)
9 - 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?
10 - What is the meaning of the abbreviation "TRA"?