Commercial Driver License Test Questions
All Answered Correct Graded A+ 2025-
2026 Set.
A driver's after-trip inspection and report form... - Answer should be filled out at the end of
the trip, day, or tour of duty, should be completed for each vehicle operated, helps the motor
carrier know when the vehicle needs repairs
A badly worn ______ is a steering system defect. - Answer tie rod
An air suspension system should not leak more than three PSI in 5 minutes at normal pressure. -
Answer False
Controlled braking is.... - Answer squeezing brakes firmly without locking them up
Empty trucks require longer stopping distances than loaded ones. - Answer True
If you're required to keep a log of your time.... - Answer any FHWA agent may inspect
If your vehicle fails to pass a roadside inspection.... - Answer it can be declared "out of
service", you cannot drive the vehicle, even to a repair station, you may repair it on the spot,
then resume your trip
If the front steering tires of a straight truck are in a skid... - Answer the vehicle will slide in a
straight line
If you are stopped for a roadside sobriety test and found to have a BAC (blood alcohol
concentration) of .02 you will..... - Answer be placed out of service for 24 hours
At highway speeds, how far ahead should you be looking.... - Answer 1/4 mile
If you are convicted for driving under the influence while driving a commercial vehicle, and this
is your first offense, you most likely will get..... - Answer at least a one-year suspension of you
CDL
, within 10 feet of the rear of the vehicle, one triangle 100 feet behind the rear of the vehicle,
and one triangle 100 feet ahead of the vehicle in the lane the vehicle is stopped in
Mud flaps.... - Answer may be required by state law
Normal oil pressure while idling with the engine at operating temperature is... - Answer 5 to
15 PSI
On wet roads your speed should be reduced by.... - Answer 1/3
Placarding is an example of.... - Answer communication
Placards are tables showing chemical equivalents for hazardous materials. - Answer False
Turn signals should be used.... - Answer at least 100 feet before turing or changing lanes
When driving, what is the proper eye-lead time (how far should you be looking ahead)? -
Answer 12-15 seconds
When traveling at 55 MPH in good conditions, it will take about 6 seconds to stop your vehicle. -
Answer True
Which of the following about emergency steering is true? - Answer if an oncoming driver drifts
into your lane, a move to your right is usually best
Which of the following will have the longest stopping distance? - Answer bobtail tractor
You should keep about 1 second for each 25 feet of vehicle length in front of you when traveling
at speeds over 35 MPH. - Answer False
You are driving a 40 foot long vehicle at 50 MPH, the safe following distance is... - Answer 5
seconds
All Answered Correct Graded A+ 2025-
2026 Set.
A driver's after-trip inspection and report form... - Answer should be filled out at the end of
the trip, day, or tour of duty, should be completed for each vehicle operated, helps the motor
carrier know when the vehicle needs repairs
A badly worn ______ is a steering system defect. - Answer tie rod
An air suspension system should not leak more than three PSI in 5 minutes at normal pressure. -
Answer False
Controlled braking is.... - Answer squeezing brakes firmly without locking them up
Empty trucks require longer stopping distances than loaded ones. - Answer True
If you're required to keep a log of your time.... - Answer any FHWA agent may inspect
If your vehicle fails to pass a roadside inspection.... - Answer it can be declared "out of
service", you cannot drive the vehicle, even to a repair station, you may repair it on the spot,
then resume your trip
If the front steering tires of a straight truck are in a skid... - Answer the vehicle will slide in a
straight line
If you are stopped for a roadside sobriety test and found to have a BAC (blood alcohol
concentration) of .02 you will..... - Answer be placed out of service for 24 hours
At highway speeds, how far ahead should you be looking.... - Answer 1/4 mile
If you are convicted for driving under the influence while driving a commercial vehicle, and this
is your first offense, you most likely will get..... - Answer at least a one-year suspension of you
CDL
, within 10 feet of the rear of the vehicle, one triangle 100 feet behind the rear of the vehicle,
and one triangle 100 feet ahead of the vehicle in the lane the vehicle is stopped in
Mud flaps.... - Answer may be required by state law
Normal oil pressure while idling with the engine at operating temperature is... - Answer 5 to
15 PSI
On wet roads your speed should be reduced by.... - Answer 1/3
Placarding is an example of.... - Answer communication
Placards are tables showing chemical equivalents for hazardous materials. - Answer False
Turn signals should be used.... - Answer at least 100 feet before turing or changing lanes
When driving, what is the proper eye-lead time (how far should you be looking ahead)? -
Answer 12-15 seconds
When traveling at 55 MPH in good conditions, it will take about 6 seconds to stop your vehicle. -
Answer True
Which of the following about emergency steering is true? - Answer if an oncoming driver drifts
into your lane, a move to your right is usually best
Which of the following will have the longest stopping distance? - Answer bobtail tractor
You should keep about 1 second for each 25 feet of vehicle length in front of you when traveling
at speeds over 35 MPH. - Answer False
You are driving a 40 foot long vehicle at 50 MPH, the safe following distance is... - Answer 5
seconds
