Q
31. Which of these is NOT a proper time to apply the parking brakes?
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AIf your brakes are very hot.
BTo use parking brakes if you park for less than 1 hour.
CIf you are going to use the parking brakes you need to make sure that they will hold the vehicle.
Detailed Explanation
The correct answer is "If your brakes are very hot.". This is based on federal CDL regulations and safety standards.
Correct Answer: If your brakes are very hot.
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