When can an endurance brake (retarder) be especially useful?

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Incorrect!

When can an endurance brake (retarder) be especially useful?

While driving down long hills

Correct answer

When driving on steep cambers

You selected this answer

As a way to reduce gear changes

To improve fuel consumption

DVSA theory test explanation

Plan ahead and use your endurance brake (retarder) to help keep your speed in check on long downhill gradients. This can help to prevent your brakes from overheating and fading.

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