EASA PPL(A) - Private Pilot License: Operational Procedure 10 Questions no time limit

1 - What extinguishing agent is the least suitable for an aircraft fire?
2 - How should engine failure after take-off be understood by a private pilot?
3 - 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?
4 - Which operational procedure statement is correct? In an electrical fire in flight, the immediate concern is...
5 - During an approach the aeroplane experiences a windshear with a decreasing headwind. If the pilot does not make any corrections, how do the approach path and the indicated airspeed (IAS) change?
6 - If water is found in a fuel sample, the pilot should...
7 - Which items should a passenger briefing in case of an imminent emergency landing include?
8 - May an engine, which previously was on fire, be restarted?
9 - What are the effects of wet grass on the take-off and landing distance?
10 - How should fire or smoke be understood by a private pilot?