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Question:

If you've been drinking alcohol, the only way to prepare yourself for your next trip is…?

Answer: To wait the minimum amount of time it will take that amount of alcohol to leave your system

Explanation
Time is the only certain way to make sure alcohol has left your system. If you do drink, make sure it is 24 hours before your next trip.
This question is in Section 1: General Knowledge of our CDL Test Guide. Explore now!
Related Question

Question: What is a common cause of tire fires?

Underinflated tires

Underinflated tires and dual tires that touch are the most common causes of tire fires.

Question: You need a CDL to drive any single vehicle with a gross weight exceeding…?

26,001 pounds

Any single vehicle weighing 26,001 or more pounds requires a Commercial Driver's License to drive.

Question: When making a turn, when should you cancel your turn signal?

Once the rear end of your trailer has cleared the turn

If you don't have self-cancelling signals, don't turn your signal off until your turn is completed. Keep everyone aware of what you're doing all the way through the turn. This will save you taking your hands from the wheel until the turn is completed.

Question: You are hauling hazardous materials, and a railroad crossing is ahead of you. When you stop for the crossing, you can stop within ____ feet of the nearest rail.

50

Question: What should you do if you have lost ABS control at one or more wheels?

Drive normally because you still have regular brakes but have the system serviced soon

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