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Home/Practice quizzes/Class 4

Class 4 practice quiz

Choose an answer, read the explanation, then continue to the next question. Your results include a review of every answer.

Class 4Question 2 of 200
Correct50%1 of 2 answered
Incorrect50%1 of 2 answered

Under what operating condition is an engine retarder generally most effective?

ALow engine rpm in neutralYour answer
BMaximum road speed in the highest gear
CWith the engine switched off
DHigher engine rpm with lower vehicle speed in the correct gearCorrect answer
Incorrect.

Engine retarders work best at higher rpm and lower road speed, making early gear selection important. (Guide p. 22)

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Study aid only. These are not official ICBC exam questions, and practice scores do not predict an official test result.