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Question:

Your spare tire must be…?

1. The same size as your other tires

2. The same pressure as your other tires

3. In as good condition as your other tires

4. All of the above

Answer: All of the above

Explanation
It’s easy to neglect checking on the spare tire. If you’re stuck out on the road with a puncture, it’s essential that it is of the same size, pressure, and quality as the tire it replaces.
This question is in Section 1: General Knowledge of our CDL Test Guide. Explore now!
Related Question

Question: How should you position your trailer to check the alignment of your mirrors?

Straight with your cab

Your mirrors have the biggest area of view when the trailer is straight, and that’s the position in which you will most often need them.

Question: Always try to back toward the driver's side because

you can see better, watching the vehicle rear out the side window.

You should always back toward the driver's side because you will be able to see things much more easily. For example, you can keep an eye on the vehicle's rear by viewing it out of your side window. If your truck pulls toward either direction, it needs service. Your neck's comfort should not affect your safety decision.

Question: What's the best way to tell if there is black ice on the road?

Being aware of the external temperature plus visual monitoring

You don't see black ice, as such. It simply looks like wet road. But if it is freezing out and the road looks wet, it is most likely black ice. Check your mirrors and windows for icing; if they are iced up black ice is very likely.

Question: You must park on a side of a level, straight, four-lane divided highway. Where should you place the reflective triangles?

One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 200 feet to the rear.

Question: If hazardous material is spilling from your vehicle, do not move your vehicle:

Any more than safety requires.

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