You are driving on a straight, level highway at 50 mph. There are no vehicles in front of you. Suddenly a tire blew out of your vehicle, what should you do first?
Answer: A
Stay off the brake until the vehicle has slowed down.
Although we have a natural tendency to step on the brakes during an emergency, doing so, especially during a tire blowout, could result in a loss of control. Unless you are about to hit something, do not use the brake until the vehicle has slowed down. When your car is below 20 mph, take a gentle step on the brake, pull to the side of the road, and stop.
All choices
- AStay off the brake until the vehicle has slowed down.
- BBegin emergency braking.
- CBegin light braking.
Why the other answers are wrong
B. Begin emergency braking.
Choice B is wrong because emergency braking during a tire blowout can cause loss of control.
C. Begin light braking.
Choice C is wrong because even light braking before the vehicle has slowed can lead to loss of control after a blowout.
CDL General Knowledge Test Info
Questions on Exam
50
Passing Score
80%
Time Limit
Typically 60 minutes; varies by testing location
The General Knowledge test content is federally standardized, so this question applies in every state. Age limits, fees, and testing procedures do vary — check your state's CDL requirements.
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