CDL · Air brakes
In an air brake system, what is the compressor governor responsible for?
Correct answer: Deciding when the compressor sends air to the storage tanks.
Answer options
- ADeciding when the storage tanks send air back to the compressor
- BSetting how much air pressure the brakes get when you press the pedal
- CDeciding when the compressor sends air to the storage tanks Correct
Why
The governor turns the compressor's pumping on and off: it stops the pumping once tank pressure reaches the cut-out level (around 125 psi) and lets it resume when pressure falls to the cut-in level (around 100 psi). How hard the brakes apply is controlled by the brake pedal, not by the governor.
About this question
Topic: Air brakes License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
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This question is part of How Air Brakes Work (18 questions). Take the full set and check your score.
Practice How Air Brakes WorkMore questions from How Air Brakes Work
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