Test 10 Questions PPL(H) - Private Pilot License - Aircraft General Knowledge, no time limit

1 - Which method of measurement is mostly used for the fuel supply indication on helicopters?
2 - Which components do rotor blades made of metal contain?
3 - In which phase of flight must the carburettor heating be switched off although carburettor icing might be expected?
4 - What is the reason for static dischargers on aircraft?
5 - The altimeter's reference scale is set to airfield pressure (QFE). What indication is shown during the flight?
6 - What has to be considered during refueling?
7 - Which value can the pilot derive from the tachometer?
8 - The measurement of altitude is based on the change of the...
9 - In which outside air temperature is icing most likely?
10 - What is the purpose of engine oil in piston engine?