Theory Test Practice Ireland

Question 1597 · Truck theory test

How can a driver reduce speed without using the footbrake?

Pick an answer to test yourself.

Correct answer

By engaging the retarder.

Official explanation

Endurance braking systems (or retarders) are standard equipment on many trucks and buses. They enable the driver to reduce speed without using the wheel-mounted brake (or service brake). Retarders are particularly useful when descending hills, as they help to extend the life of the brakes and to prevent brake fade.

Topic
Control of vehicle · Braking
Also in
This question also appears in the bus theory test.

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