Name: CDL General Knowledge Practice Test – Part 7
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Question 1 of 10

1. Question

Which one of these is not part of the check of the engine compartment done for a pre trip inspection?

Worn wiring insulation.
Engine oil level.
Condition of belts and hoses.
Valve clearance.

Question 2 of 10

2. Question

What should you do when your vehicle hydroplanes?

Release the accelerator.
Start stab braking.
Counter steer hard.
Accelerate slightly.

Question 3 of 10

3. Question

Which of these is a sign of tire failure?

steering that feels heavy.
vibration.
a loud bang.
All of the above.

Question 4 of 10

4. Question

According to the driver’s manual, why should you limit the use of your horn?

It wears down the battery.
It can startle other drivers.
The horn is not a good way to let others know you're there.
You should keep both hands tightly gripping the steering wheel.

Question 5 of 10

5. Question

Which of these can help you stay alert while driving?

Taking short breaks before you are drowsy.
Keeping the cab warm.
Taking over-the-counter cold medicine.
Scheduling trips during hours that you are normally asleep.

Question 6 of 10

6. Question

Under loaded front axles can cause the following:

Too much play in the steering wheel
Poor traction
Damage to the tires.
All of the above.

Question 7 of 10

7. Question

Which of these statements about drinking alcohol is true?

Some people are not affected by drinking.
A few beers have the same effect on driving as a few shots of whiskey.
Coffee and fresh air can sober a person up.
All of the above.

Question 8 of 10

8. Question

Your vehicle is in a traffic emergency and may collide with another vehicle if you do not take action. Which of these is a good rule to remember at such a time?

Stopping is always the safest action in a traffic emergency.
Open the door and jump out if you have time.
Heavy vehicles can almost always turn more quickly than they can stop.
Leaving the road is always more risky than hitting another vehicle.

Question 9 of 10

9. Question

Which of these statements about brakes is true?

Brake drums cool very quickly when the vehicle is moving very fast.
Brakes have more stopping power when they get very hot.
The heavier a vehicle or the faster it is moving, the more heat the brakes have to absorb to stop it.
All of the above.

Question 10 of 10

10. Question

You are traveling down a long, steep hill. Your brakes get so hot that they fail. What should you do?

Pump the brake pedal.
Down shift.
Look for an escape ramp or escape route.
All of the above, simultaneously if possible.

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CDL General Knowledge Practice Test – Part 7