Theory Test Practice Ireland

Question 1833 · Truck theory test

What should the driver do if the service brake fails?

Pick an answer to test yourself.

Correct answer

Use the secondary brake.

Official explanation

Combine the secondary brake with the footbrake or the parking brake control. This brake is only for use if the service brake fails. As the secondary brake normally operates on fewer wheels than the service brake it is not as effective.

Topic
Safe & responsible driving · Taking Emergency/Corrective Action
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This question also appears in the bus theory test.

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