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Home/Practice quizzes/Class 3

Class 3 practice quiz

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

Class 3Question 20 of 200
Correct45%9 of 20 answered
Incorrect55%11 of 20 answered

How much can the listed truck and trailer aerodynamic features improve fuel economy?

AAbout 15–20%Your answerCorrect answer
BAbout 1–2%
CAbout 40–50%
DThey cannot affect fuel economy
Correct.

Features such as fairings, side skirts and rear air dams can improve fuel economy by about 15–20 per cent. (Guide p. 74)

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