Manitoba Airbrake Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Master the Manitoba Airbrake Exam with our comprehensive practice test. Boost your knowledge, confidence, and chances of passing. Start your journey towards certification now!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the purpose of the tractor protection valve?

Improves braking efficiency
Increases air pressure
Prevents total air loss from the tractor if the trailer breaks away
None of the above

The correct answer is: Prevents total air loss from the tractor if the trailer breaks away

The purpose of the tractor protection valve is to prevent total air loss from the tractor in case the trailer breaks away. This valve automatically disconnects the trailer's brake system from the tractor's air supply, preventing a complete loss of air pressure and allowing the driver to bring the vehicle to a controlled stop. Option A is incorrect because the tractor protection valve does not directly improve braking efficiency. Option B is incorrect because the valve is not designed to increase air pressure. Option D is incorrect because the tractor protection valve does serve a specific purpose in the safe operation of a tractor-trailer.