CDL General Knowledge test
CDL GENERAL KNOWLEDGE TEST EXAM PREPARATION NEWEST
2025/2026 WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS| BRAND NEW VERSION!
Which of these is true about the use of a heater?
A. When driving in winter weather, you should check that the heater is working
properly
B. You must have at least 1 extra heater, such as a mirror heater or bunk heater,
when driving in winter weather
C. If you feel sleepy, warming the cab with the heater will help you stay alert
A. When driving in winter weather, you should check that the heater is working
properly
What is the proper way to hold the steering wheel?
A. With both hands close together, at the top of the wheel
B. With both hands close together, at the bottom of the wheel
C. With both hands firmly, on opposite sides of the wheel
C. With both hands firmly, on opposite sides of the wheel
If you have a heavy load that is slowing you down on an upgrade, you should :
A. Shift into a lower gear
B. Exit the road until traffic is lighter
C. Drive on the shoulder so others can pass easily
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, CDL General Knowledge test
A. Shift into a lower gear
Which of these is not a danger when an automatic transmission is forced into a
low gear at night speeds?
A. Damage to the transmission
B. Loss of engine braking effect
C. Loss of steering control
C. Loss of steering control
If possible, a helper should be used to help back your vehicle:
A. Only when your vehicle is pulling a trailer
B. Only when your vehicle has to back on a curved path
C. Whenever you have to back
C. Whenever you have to back
When looking ahead of your vehicle while driving you should look:
A. Straight ahead at all times
B. To the right side of the road
C. Back and forth, near and far
C. Back and forth, near and far
How far ahead of the vehicle should the driver look while driving ?
A. 5-8 seconds
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, CDL General Knowledge test
B . 12-15 seconds
C. 18- 22 seconds
B. 12-15 seconds
Which of these is the proper way to change lanes?
A. Signal just as you begin to change lanes and drift over slowly
B. Signal early and change lanes slowly and smoothly
C. Signal before you change lanes and then mover over quickly
B. Signal early and change lanes slowly and smoothly
You should signal continuously while turning because :
A. You need both hands on the wheel to turn safely
B. It is illegal to turn off your signal before completing a turn
C. Most vehicles have self canceling signals
A. You need both hands on the wheel to turn safely
The primary cause of fatal crashes is:
A. Driving too fast
B. Driving while eating
C. Driving at night
A. Driving too fast
3|Page
, CDL General Knowledge test
You should try to park so that:
A. You can pull forward when you leave
B. There is a least 1 curb next to your vehicle
C. Your vehicle is protected by trees or some other overhang
A. You can pull forward when you leave
You are driving a vehicle at 45 mph on dry pavement. About how much stopping
distance will you need to bring it to a stop?
A. Twice the length of the vehicle
B. Half the length of a football field
C. The length of a football field
C. The length of a football field
As the blood alcohol concentration (BAC) goes up, what happens?
A. The drinker more clearly sees how alcohol is affecting him/her
B. The effects of alcohol decreases
C. Judgment and self control are affected
C. Judgment and self control are affected
Implied consent means:
A. It is understood that you may drink alcohol now and then
B. You have give your consent to be tested for alcohol in your blood
4|Page
CDL GENERAL KNOWLEDGE TEST EXAM PREPARATION NEWEST
2025/2026 WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS| BRAND NEW VERSION!
Which of these is true about the use of a heater?
A. When driving in winter weather, you should check that the heater is working
properly
B. You must have at least 1 extra heater, such as a mirror heater or bunk heater,
when driving in winter weather
C. If you feel sleepy, warming the cab with the heater will help you stay alert
A. When driving in winter weather, you should check that the heater is working
properly
What is the proper way to hold the steering wheel?
A. With both hands close together, at the top of the wheel
B. With both hands close together, at the bottom of the wheel
C. With both hands firmly, on opposite sides of the wheel
C. With both hands firmly, on opposite sides of the wheel
If you have a heavy load that is slowing you down on an upgrade, you should :
A. Shift into a lower gear
B. Exit the road until traffic is lighter
C. Drive on the shoulder so others can pass easily
1|Page
, CDL General Knowledge test
A. Shift into a lower gear
Which of these is not a danger when an automatic transmission is forced into a
low gear at night speeds?
A. Damage to the transmission
B. Loss of engine braking effect
C. Loss of steering control
C. Loss of steering control
If possible, a helper should be used to help back your vehicle:
A. Only when your vehicle is pulling a trailer
B. Only when your vehicle has to back on a curved path
C. Whenever you have to back
C. Whenever you have to back
When looking ahead of your vehicle while driving you should look:
A. Straight ahead at all times
B. To the right side of the road
C. Back and forth, near and far
C. Back and forth, near and far
How far ahead of the vehicle should the driver look while driving ?
A. 5-8 seconds
2|Page
, CDL General Knowledge test
B . 12-15 seconds
C. 18- 22 seconds
B. 12-15 seconds
Which of these is the proper way to change lanes?
A. Signal just as you begin to change lanes and drift over slowly
B. Signal early and change lanes slowly and smoothly
C. Signal before you change lanes and then mover over quickly
B. Signal early and change lanes slowly and smoothly
You should signal continuously while turning because :
A. You need both hands on the wheel to turn safely
B. It is illegal to turn off your signal before completing a turn
C. Most vehicles have self canceling signals
A. You need both hands on the wheel to turn safely
The primary cause of fatal crashes is:
A. Driving too fast
B. Driving while eating
C. Driving at night
A. Driving too fast
3|Page
, CDL General Knowledge test
You should try to park so that:
A. You can pull forward when you leave
B. There is a least 1 curb next to your vehicle
C. Your vehicle is protected by trees or some other overhang
A. You can pull forward when you leave
You are driving a vehicle at 45 mph on dry pavement. About how much stopping
distance will you need to bring it to a stop?
A. Twice the length of the vehicle
B. Half the length of a football field
C. The length of a football field
C. The length of a football field
As the blood alcohol concentration (BAC) goes up, what happens?
A. The drinker more clearly sees how alcohol is affecting him/her
B. The effects of alcohol decreases
C. Judgment and self control are affected
C. Judgment and self control are affected
Implied consent means:
A. It is understood that you may drink alcohol now and then
B. You have give your consent to be tested for alcohol in your blood
4|Page
