Single-unit air brakes practice quiz

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Single-unit air brakesQuestion 19 of 200

Correct58%11 of 19 answered

Incorrect42%8 of 19 answered

When does the guide say a compressor drive belt needs tension adjustment?

AWhen it has no visible colour marking

BWhenever it feels warmYour answer

CWhen it deflects more than twice the belt's widthCorrect answer

Incorrect.

If the belt can be pressed inward more than twice its width midway between pulleys, its tension needs adjustment. (Guide p. 150)

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