Test 10 Questions PPL(H) - Private Pilot License - Navigation, no time limit

1 - The VDF range depends on...
2 - Which equipment is needed on board of an aircraft to use a VHF direction finder (VDF)?
3 - What ground features should preferrably be used for orientation during visual flight?
4 - What is the difference in time when the sun moves 10° of longitude?
5 - UTC is...
6 - What is the difference in time when the sun moves 20° of longitude?
7 - What is the difference in latitude between A (12°53'30''N) and B (07°34'30''S)?
8 - Given: Calibrated airspeed (CAS): 155 kt. Flight level (FL) 80. Outside air temperature (OAT): +15° C. The true airspeed (TAS) equals...
9 - A VOR radial corresponds to the...
10 - With Central European Summer Time (CEST) given as UTC+2, what UTC time corresponds to 1600 CEST?