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 32 of 200
Correct34%11 of 32 answered
Incorrect66%21 of 32 answered
ICBC guide illustration of red and blue glad-hand couplers
Red supplies reservoir air; blue carries the braking signal.

In the illustrated glad-hand pair, which line is normally identified by red?

AThe supply or emergency lineYour answerCorrect answer
BThe ABS electrical line
CThe control or service line
Correct.

Red identifies the supply or emergency line that charges the trailer reservoirs. (Guide p. 168)

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.