Practice question
Why does the inspection include both air-system checks and wheel-end foundation-brake checks?
- A vehicle can have good air pressure but still fail to stop if foundation components are worn, damaged, or out of adjustment
- Wheel-end checks are only for decoration
- Air gauges show lining thickness exactly
- Foundation brakes are unrelated to stopping
Answer: A — A vehicle can have good air pressure but still fail to stop if foundation components are worn, damaged, or out of adjustment
The correct answer is shown above. Try the full quiz for additional practice.
Practice more: Minnesota CDL Air Brakes Test Practice Questions - Minnesota Commercial Driver License (CDL) Air Brakes Knowledge Test Exam →