Q
105. How should you check that the service brakes come on when air pressure in the system drops below a certain level?
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AWait for normal air pressure, release the parking brake, move the truck forward slowly, and apply the brakes using the brake pedal.
BCheck the oil level in the engine.
CEngage the cruise control and monitor the speed.
Detailed Explanation
The correct answer is "Wait for normal air pressure, release the parking brake, move the truck forward slowly, and apply the brakes using the brake pedal.". This is based on federal CDL regulations and safety standards.
Correct Answer: Wait for normal air pressure, release the parking brake, move the truck forward slowly, and apply the brakes using the brake pedal.
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