Practice question

How must a driver immobilise a parked ADR vehicle and a trailer that has no parking brake?

Leave it in gear on a slope without the parking brake
Apply the parking brake; if a trailer has no parking brake, immobilise it with at least one wheel chock suited to the mass and tyre diameter
Rely on orange plates instead of brakes
Chock only the steering wheel with a warning vest

Answer: B — Apply the parking brake; if a trailer has no parking brake, immobilise it with at least one wheel chock suited to the mass and tyre diameter

The correct answer is shown above. Try the full quiz for additional practice.