ColumbiaTraining Systems Ltd.
Talk to an instructor(604) 729-5333
Language

Read in your language

Google Translate opens in a new tab. Some page content may remain in English. For quizzes and calendars, try your browser’s Translate option.

Browser translation help

Home/Practice quizzes/Combination air brakes

Combination air brakes practice quiz

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

Combination air brakesQuestion 9 of 200
Correct33%3 of 9 answered
Incorrect67%6 of 9 answered
ICBC guide illustration of an air chamber pushrod, slack adjuster and S-cam brake
Follow the mechanical movement from the chamber to the brake shoes.

In the illustrated S-cam brake, what does the chamber pushrod move first?

AThe slack adjuster, which rotates the S-camYour answerCorrect answer
BThe brake drum
CThe wheel hub
Correct.

Pushrod movement turns the slack adjuster and S-cam, forcing the linings against the drum. (Guide p. 149)

Next question

Choose another quiz · ICBC Driving Commercial Vehicles

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