CDL General Knowledge Test 5 – Classic Mode

This is CDL General Knowledge Test 5 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. You should downshift...

A before starting down a steep hill
B when the speedometer or tachometer indicates that it's necessary
C before entering a sharp curve
D all of the above

2. Maintain good visual alertness by...

A fixing your eyes on the road in front of you
B looking ahead as far as you can see
C keeping a close eye on the road behind you
D shifting your attention between the mirrors and the road ahead

3. Signaling other drivers when it's safe for them to pass is...

A a great aid to highway safety
B required
C an unsafe practice
D a common courtesy drivers should extend to each other

4. Normal engine temperature ranges from...

A 180 to 250 degrees Fahrenheit
B 100 to 250 degrees Fahrenheit
C 165 to 185 degrees Fahrenheit
D Any of the above, as long as it's over 100 degrees Fahrenheit

5. Your vehicles battery box must have...

A at least two batteries
B enough fluid to work properly
C at least one loose wire for grounding
D a secure cover

6. Rust around wheel nuts often means that...

A the nuts are loose
B the nuts are broken
C it's been raining a lot lately
D it's nothing to worry about

7. When the roads are wet, icy, or snow covered...
A use your retarder for braking as much as possible
B turn the retarder off
C use the retarders maximum setting for better traction
D be ready to turn the retarder on if you start to skid

8. If you try to downshift while coming down a mountain, you might...

A damage the engine
B wear out the clutch
C get stuck in neutral
D lose traction

9. A vehicle marked at the rear with a red triangle having an orange center...

A Is hauling hazardous materials
B Is moving slowly
C Is a farm vehicle
D May stop at any time

10. Bridge laws...

A control traffic on a bridge
B determine the maximum legal axle weight
C apply only to bridges in California
D can lower the maximum axle weight limit

End of Test #5

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