Texas CDL General Knowledge Practice Exam

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Prepare for the Texas CDL General Knowledge Exam. Study with interactive quizzes, multiple choice questions, and detailed explanations to increase your chances of passing the exam.

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What action should be avoided when a car is approaching from the rear and disappears from your mirror, and you wish to change lanes?

Check mirrors again before lane change
Wait to ensure the car isn't in your blind spot
Accelerate quickly to change lanes faster
Signal your intention to change lanes

The correct answer is: Wait to ensure the car isn't in your blind spot

The most effective action to avoid when a car is approaching from the rear and then disappears from your mirror, while you wish to change lanes, is to accelerate quickly to change lanes faster. This is not advisable for several reasons. When a vehicle disappears from your mirror, it may have moved into your blind spot, and accelerating can increase the risk of a collision if that vehicle is indeed there. It's crucial to confirm that the lane is clear before making any maneuvers, which means you should be taking time to ensure that the space is truly safe for a lane change. Changing lanes requires caution, especially when cars are involved that could be accelerating, decelerating, or changing position relative to your vehicle. By accelerating quickly, you could end up misjudging the distance to the vehicle that was approaching or even encountering a situation where you cannot react appropriately. Therefore, it is always safer to check mirrors carefully, ensure it's clear, and signal your intentions before changing lanes.