Commercial Driver License (CDL) Class B Practice Test

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Study for the Commercial Driver License (CDL) Class B Test. Study using multiple-choice questions, hints, and explanations. Prepare for your exam effectively!

Practice this question and more.

If you feel drowsy before driving, what is the best course of action?

Drink caffeine and continue driving
Take a quick nap
Drive slowly to feel more awake
Keep the windows down for fresh air

The correct answer is: Take a quick nap

Taking a quick nap is the best course of action if you feel drowsy before driving. Drowsiness significantly impairs your ability to operate a vehicle safely, increasing the risk of accidents. A short nap, even if just for 10 to 20 minutes, can help alleviate fatigue and rejuvenate your alertness. This approach allows you to recharge, ensuring that you are more alert and focused when you begin driving. The other strategies, like consuming caffeine or driving slowly, may provide only a temporary fix or delay the inevitable risk of fatigue. Caffeine can help in the short term but doesn't actually replace the restorative benefits of sleep. Similarly, driving slowly while feeling drowsy does not address the root issue and may still lead to impaired judgement. Keeping windows down for fresh air can be refreshing but is unlikely to counteract the effects of drowsiness effectively; it’s not a remedy for fatigue. Hence, a brief nap is the most effective and responsible action to take in such a situation.