Question 1
On a transit bus, what is the primary function of the air compressor governor?
Correct Answer:
Maintain reservoir pressure between cut-in and cut-out by loading and unloading the compressor
Question 2
Typical air-brake governor cut-out pressure on a transit bus is approximately:
Correct Answer:
125 psi
Question 3
The reservoir safety (pressure relief) valve in a bus air system is generally set to open at about:
Correct Answer:
150 psi
Question 4
Technician A says the air dryer removes moisture and oil before air enters the supply reservoir. Technician B says the air dryer's purge cycle is triggered when the governor unloads the compressor. Who is correct?
Correct Answer:
Both A and B
Question 5
Water and oil collecting in the supply reservoir of a transit bus most directly indicates a problem with the:
Correct Answer:
Air dryer
Question 1
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About this Exam

Prepare with the ASE H4 Brakes (Transit Bus) Practice Questions - ASE H4 - Brakes (Transit Bus) Certification Exam practice quiz. This question bank includes 100 questions covering valve, technician, brake, says, and transit. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ASE H4 Brakes (Transit Bus) Practice Questions - ASE H4 - Brakes (Transit Bus) Certification Exam

This practice set contains 100 questions from the matching question bank and focuses on valve, technician, brake, says, and transit. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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