CDL General Knowledge Test 14 – Classic Mode

This is CDL General Knowledge Test 14 in our original Classic Mode. Simply click in your answer to each CDL practice test question. When you’re finished, check your score and results. You can reset the test and retake it as needed.

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1. Which of these statements about using turn signals is true?

A When turning, you should signal early.
B You do not need to use your signal when changing lanes on a four lane highway.
C You should use your turn signal to mark your vehicle when it is pulled off the side of the road.
D When turning, you should cancel the signal just before you make the turn.

2. Retarders:

A Allow you to disconnect the steering axle brakes.
B Cannot be used on interstate highways.
C Work better at very low rpms.
D Can cause the vehicle to skid when the road is slippery.

3. Which of these statements about staying alert to drive is true?

A If you must stop to take a nap, it should be at a truck stop or other public area never on the side of the road.
B A half-hour break for coffee will do more to keep you alert that a half-hour nap.
C The only thing that can cure fatigue is sleep.
D There are drugs that can overcome being tired.

4. You are driving on a two lane road. An oncoming driver drifts into your lane and is headed straight for you. Which of these is generally the best action?

A Steer to the right
B Steer onto the left shoulder
C Hard braking
D Steer into the oncoming lane

5. You should avoid driving through deep puddles or flowing water. But if you must, which of these steps can help keep your brakes working?

A Applying hard pressure on both the brake pedal and accelerator after coming out of the water.
B Gently pressing the brake pedal while driving through the water.
C Turning on your brake heaters.
D Driving through quickly.

6. How far should a driver look ahead of the vehicle while driving?

A 6-9 seconds
B 9-12 seconds
C 12-15 seconds
D 18-21 seconds

7. Which of these statements about cargo loading is true?

A State laws dictate legal weight limits.
B Slight overloading of a vehicle can make its brakes work better.
C If the shipper loads cargo, the driver is not responsible for overloading.
D The legal maximum weight allowed by a state can be considered safe for all driving conditions.

8. Which of these statements about marking a stopped vehicle is true?

A The vehicle's tail lights should be kept on to warn other drivers.
B If a hill or curve keeps drivers behind you from seeing the vehicle within 500 feet, the rear reflective triangle should be moved back down the road to give adequate warning.
C You do not need to put out reflective triangles unless the vehicle will be stopped for 30 minutes or more.
D All of the above are true.

9. You are driving a 40 foot vehicle at 45 MPH. Driving conditions are ideal (dry pavement, good visibility). What is the least amount of space that you should keep in front of your vehicle to be safe?

A 2 seconds
B 3 seconds
C 4 seconds
D 5 seconds

10. On wet roads, you should reduce your speed:

A By one-third
B By one-half.
C And get off the road as soon as possible.
D None of the above

End of Test #14

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