Test 10 Questions PPL(A) - Private Pilot License - Operational Procedure, no time limit

1 - A light aircraft intends to land behind a commercial airliner belonging to wake turbulence category "medium" or "heavy" on a long runway. How can the wake turbulence of the commercial aircraft be avoided?
2 - Immediately after lift-off, a microburst is entered inadvertently. Which action might avoid an unintentional descent?
3 - Which danger exists after a heavy rain shower for a landing aircraft?
4 - Which gas is most dangerous during an engine fire?
5 - With only a slight crosswind, what is the danger at take-off after the departure of a heavy aeroplane?
6 - Which items should a passenger briefing in case of an imminent emergency landing include?
7 - How may windshear be recognised in flight?
8 - The intensity of wake turbulence depends on...
9 - What extinguishing agent is the least suitable for an aircraft fire?
10 - Which method is appropriate to approach an unprepared landing field?