CDL GENERAL KNOWLEDGE VERIFIED EXAM QUESTIONS AND
ANSWERS - LATEST VERSION 2026
1. When you are in a 60 foot vehicle, how much space should you
maintain in front of you at highway speeds? - ANSWER Seven
seconds
2. What is the first thing to do if your vehicle catches fire while
driving? - ANSWER Pull off the road and park in an open area
3. The best way to put out a fire is to: - ANSWER Stand upwind
and spray the base of the fire
4. What are some causes of vehicle fires (3): - ANSWER Spilled
fuel, short circuits, and driver smoking
5. Safe drivers must maintain space around their vehicles for the
following reasons (3): - ANSWER In case you must stop suddenly,
in case there are cars following too closely, and in case there is an
obstacle in the road.
6. Hydroplaning can occur when you drive through water or
slush. If you experience hydroplaning you should: - ANSWER
Release the accelerator and push in the clutch
7. When making a right hand turn, you should always: - ANSWER
Keep the rear of your vehicle close to the curb
8. A front wheel skid is usually caused by (3): - ANSWER Driving
too fast for conditions, lack of tread on the front tires, and cargo
improperly loaded
9. Driving at night is more dangerous because of the following
(3): - ANSWER Most people are less alert at night due to fatigue,
headlights often cause glare which can blind drivers, and there are
more drunk drivers at night
10. How often should you check your cargo (3)? - ANSWER
Within 25 miles after beginning a trip, after you have driven for
three hours, and after you take a break
ANSWERS - LATEST VERSION 2026
1. When you are in a 60 foot vehicle, how much space should you
maintain in front of you at highway speeds? - ANSWER Seven
seconds
2. What is the first thing to do if your vehicle catches fire while
driving? - ANSWER Pull off the road and park in an open area
3. The best way to put out a fire is to: - ANSWER Stand upwind
and spray the base of the fire
4. What are some causes of vehicle fires (3): - ANSWER Spilled
fuel, short circuits, and driver smoking
5. Safe drivers must maintain space around their vehicles for the
following reasons (3): - ANSWER In case you must stop suddenly,
in case there are cars following too closely, and in case there is an
obstacle in the road.
6. Hydroplaning can occur when you drive through water or
slush. If you experience hydroplaning you should: - ANSWER
Release the accelerator and push in the clutch
7. When making a right hand turn, you should always: - ANSWER
Keep the rear of your vehicle close to the curb
8. A front wheel skid is usually caused by (3): - ANSWER Driving
too fast for conditions, lack of tread on the front tires, and cargo
improperly loaded
9. Driving at night is more dangerous because of the following
(3): - ANSWER Most people are less alert at night due to fatigue,
headlights often cause glare which can blind drivers, and there are
more drunk drivers at night
10. How often should you check your cargo (3)? - ANSWER
Within 25 miles after beginning a trip, after you have driven for
three hours, and after you take a break
