ACT Heavy Vehicle Knowledge Test Practice Questions - Heavy Vehicle Knowledge Test (Rigid Combination Road Rules Knowledge Test) Exam

What should a heavy vehicle driver do immediately before a long descent to protect the brakes?

Switch off the engine to save fuel on the way down Apply the parking brake lightly throughout the descent Select an appropriate low gear to enable engine braking and check that brakes are functioning before beginning the descent Accelerate to build speed before the descent to reduce brake use

Correct Answer:

Select an appropriate low gear to enable engine braking and check that brakes are functioning before beginning the descent

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