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

1 - Two aircraft of the same type, same grossweight and same configuration fly at different airspeeds. Which aircraft will cause more severe wake turbulence?
2 - In case of an emergency ditching, the life vests have to be inflated...
3 - A precautionary landing is a landing...
4 - After a precautionary landing the brakes and wheels are very hot. In which way should the pilot approach them?
5 - Why is it dangerous to pump the throttle for engine start in cold weather?
6 - What needs to be observed in conjunction with overheated brakes?
7 - What should be observed when taxiing behind a commercial airliner?
8 - With only a slight crosswind, what is the danger at take-off after the departure of a heavy aeroplane?
9 - Which of the items below may have an influence on the noise perceived by a person on the ground? 1) Engine power setting 2) Propeller revolutions per minute 3) Position of the landing gear 4) Flap position 5) Flight track 6) Height above ground 7) Flight rules
10 - May an engine, which previously was on fire, be restarted?