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Class 1 practice quiz

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

How long should a heavy-duty diesel normally warm up after starting?

AUntil coolant reaches full temperatureYour answer
BThree to five minutes, or seven to 10 minutes below 0 CCorrect answer
CAt least 20 minutes
DNo warm-up under any condition
Incorrect.

Recommended warm-up is three to five minutes, extended to seven to 10 minutes below 0 C. (Guide p. 70)

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