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/Single-unit air brakes

Single-unit air brakes practice quiz

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

Single-unit air brakesQuestion 9 of 200
Correct56%5 of 9 answered
Incorrect44%4 of 9 answered

What occurs during the compressor intake stroke?

AThe governor opens the safety valve at 150 psi.
BThe piston moves down, pressure falls and air enters through the open inlet valve.Your answerCorrect answer
CThe piston rises, both valves close and air leaves the reservoir.
Correct.

On the intake stroke, the descending piston creates lower pressure and air enters through the inlet valve. (Guide p. 151)

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.