Step 3 » GENERAL learning environment Category C (C, C1)

GENERAL Learning Environment Category C (C, C1)
Question 142 of 533

The electromagnetic retarder is more efficient than the one on the exhaust, especially at:

A high speeds;
B unexpected stops;
C low speeds.

Explanation

Explanation text category C / driving quizzes drpciv:
Buses and heavy trucks have, besides the wheel brake, other deceleration devices. The exhaust brake (the engine brake) is a retarder that interrupts the diesel supply and blocks the exhaust gases. The electromagnetic brake is a retarder that brakes the cardan shaft (the transmission), with the help of an electromagnet.
The electromagnetic retarder is more efficient than the one on the exhaust, especially at high speeds.
Correct answer: A
 
Driving quizzes drpciv category C explained.

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