Do you have what it takes to PASS the BUS theory test?

Put your skills to the test by answering this example theory test practice question.

This DVSA BUS practice question has been taken from the Braking Systems theory test topic.

Select one answer

You're about to drive an unfamiliar vehicle. What should you do if you think there may be moisture in the air-brake reservoir?

Assume the system has automatic drain valves

Find out whether you need to drain the system manually

Nothing; it's the vehicle owner's responsibility

Leave the engine running for a while before driving

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