CDL General Knowledge Test 1 – Classic Mode

This is CDL General Knowledge Test 1 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.

Start Test #1 Now

1. How often should you check your cargo?

A Within the first 50 miles after beginning a trip
B Every 150 miles or every three hours
C After every break you take during driving
D All of the above

2. A commercial motor vehicle (CMV) is defined as...

A A vehicle with a gross weight over 26,001 lbs.
B A vehicle transporting hazardous materials
C A vehicle transporting 16 or more passengers
D All of the above

3. Suspension systems...

A Keep the load secure
B Keep the axles in place
C Keep the brake drums from failing
D Keep the steering wheel tight

4. At 55 miles-per-hour it takes about 6 seconds to stop a fully loaded truck and the braking distance is...

A About the length of a football field or 100 yards
B About 1/4 mile
C About two truck lengths
D About two car lengths

5. Which of the following statements about downshifting is NOT true?

A Downshift before starting down a hill
B Downshift before entering a curve
C Downshift when you get to the bottom of a hill
D Downshift before climbing a hill

6. Tires should should be replaced...

A When the tread separates
B When there are broken valve stems
C If the tread depth on your front tires is less than 4/32 deep
D All of the above

7. Which of the following statements about overhead space is true?

A The heights posted at bridges are usually accurate
B The weight of the cargo changes a truck's height
C Warning lights are always installed on low bridges and overpasses
D An empty van is lower than a loaded one

8. In the event of an accident you should remember to do the following EXCEPT...

A Move the victims out of the way immediately
B Protect the area
C Notify authorities
D Stop any bleeding and keep the victims warm

9. When accelerating...

A Always use the parking brake to slow down
B Do not engage the clutch before you take your foot off the brake
C Speed up smoothly and gradually and avoid jerking
D "Hammer down" when your wheels start to spin

10. Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

A Pump the brake pedal
B Downshift
C Put the gears in neutral
D Look for an escape ramp or an escape route

End of Test #1

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