CDL Test Questions and Answers
Truck escape ramps:
a. Cannot be used by certain types of heavy vehicles.
b. Are designed to protect vehicles from damage.
c. Should not be used unless you have first tried all other ways to save your
vehicle after brake failure.
d. All of the above. - Correct Answer: Are designed to protect vehicles from
damage.
You are driving a vehicle that could safely be driven at 55 MPH on an open
road. But traffic is now heavy, moving at 35 MPH although the speed limit is
55. The safest speed for your vehicle in this situation is most likely: a. 55 MPH
b. 45 MPH
c. 35 MPH
d. 25 MPH - Correct Answer: 35 MPH
Every time you park your vehicle and shut the engine off you should: a. Leave
it in gear (if it has a manual transmission).
b. Apply the parking brake.
c. Turn the steering wheel as far to the left as you can.
d. Do all the above. - Correct Answer: Apply the parking brake.
Which of these describes how you should use the brake pedal on a steep
downhill grade? a. Release the brake when you are 5 MPH below your safe
speed, then let your speed come back up to your safe speed and repeat
braking again, (bring you speed down 5 MPH below your safe speed.)
b. With stronger pressure as the vehicle goes downhill.
c. Light steady pressure.
d. Light, pumping action. - Correct Answer: Release the brake when you are 5
MPH below your safe speed, then let your speed come back up to your safe
speed and repeat braking again, (bring you speed down 5 MPH below your
safe speed.)
For an average commercial vehicle, being driven at 55 MPH on dry pavement
it will take about ____ to bring the vehicle to a stop. a. The length of a vehicle.
b. Half the length of a football field.
,c. Twice the length of the vehicle.
d. The length of a football field. - Correct Answer: The length of a football field.
Which of these statements about certain types of cargo is true?
a. Oversize loads can be hauled without special permits during times when the
roads are not busy.
b. When liquids are hauled, the tank should always be loaded totally full.
c. Unstable loads such as hanging meat or livestock require extra caution on
curves.
d. Loads that consist of liquids in bulk do not present vehicle handling
problems because they are usually very heavy. - Correct Answer: Unstable
loads such as hanging meat or livestock require extra caution on curves.
Which of these statements about backing a heavy vehicle is true? a. Backing is
always dangerous.
Which of these statements about backing a heavy vehicle is true?
a. Backing is always dangerous.
b. You should back and turn toward the driver's side whenever possible.
c. You should use a helper and communicate with hand signals.
d. All of the above are true. - Correct Answer: Backing is always dangerous.
When should you wear seat belts?
a. Only in states where it is required by law.
b. Any time you are in a moving vehicle.
c. Only when engaged in interstate commerce.
d. Only when traveling on a highway. - Correct Answer: Any time you are in a
moving vehicle.
The most common cause of serious vehicle skids is: a.
The most common cause of serious vehicle skids is:
a. Driving too fast for road conditions.
b. Poorly designed roads.
c. Poorly adjusted brakes.
d. Poorly adjusted brakes. - Correct Answer: Driving too fast for road
conditions.
If you are being tailgated, you should:
a. Signal the tailgater when it is safe to pass.
b. Speed up.
,c. Flash your brake lights.
d. Increase the space in front of you. - Correct Answer: Increase the space in
front of you.
The parking brake should be tested while the vehicle is:
a. Moving slowly.
b. Moving at highway speed.
c. Going downhill.
d. Parked - Correct Answer: Parked
A drivers trip log, if required:
a. May be brought up to date once a week.
b. Is also called a
c. Must be shown immediately when an officer requests it.
d. All of the above. - Correct Answer: Must be shown immediately when an
officer requests it.
Should the pre-trip inspection report from the last driver be reviewed during
your pre-trip inspection? a. Yes
b. No - Correct Answer: Yes
If you are stopped at a roadside rest and found to have a BAC (Blood Alcohol
Concentration) of .02 you will:
a. In trouble with the dispatcher
b. Be placed out of service for 24 hours
c. Be placed out of service for 48 hours
d. Be placed out of service for 72 hours - Correct Answer: Be placed out of
service for 24 hours
When roads are slippery, you should:
a. Stop and test the traction while going up hills.
b. Drive alongside other drivers.
c. Decreases the distance that you look ahead of your vehicle.
d. Make turns as gently as possible. - Correct Answer: Make turns as gently as
possible.
While driving, you see a small (1 foot square) cardboard box ahead in your
lane. You should: a. Steer around it when it is safe to do so.
b. Hit it with your vehicle to knock it off the road.
, c. Brake hard to avoid hitting it.
d. Stop and direct traffic around it. - Correct Answer: Steer around it when it is
safe to do so.
Which of these pieces of emergency equipment should be carried at all times
in your vehicle?
a. Fire extinguishers.
b. Warning devices for parked vehicles.
c. Spare electrical fuses (if the vehicle uses them).
d. All of the above. - Correct Answer: All of the above
What is counter steering?
a. Using the steering axle brakes to prevent over steering.
b. Steering in the opposite direction from what other drivers expect you to do.
c. Turning the wheel in the opposite direction after steering to avoid a traffic
emergency.
d. Turning the steering wheel counter clockwise. - Correct Answer: Turning
the wheel in the opposite direction after steering to avoid a traffic emergency
You do not have a hazardous materials endorsement on your commercial
drivers license. When can you drive a vehicle hauling hazardous materials?
a. Never
b. Only when the shipment will not cross state lines.
c. Only when the vehicle does not require placards.
d. Only when a person who has the hazardous materials endorsement rides in
the vehicle. - Correct Answer: Only when the vehicle does not require
placards.
You are driving a new truck with a manual transmission. What gear will you
probably have to use to take a long downhill grade
a. A lower gear that you would use to climb the hill.
b. The same gear you would use to climb the hill.
c. A higher gear that you would use to climb the hill.
d. None: newer trucks can coast down hills. - Correct Answer: A lower gear
that you would use to climb the hill.
High beams should be:
a. Dimmed when you are within 100 feet of another vehicle.
b. Used whenever it is safe and legal to do so.
Truck escape ramps:
a. Cannot be used by certain types of heavy vehicles.
b. Are designed to protect vehicles from damage.
c. Should not be used unless you have first tried all other ways to save your
vehicle after brake failure.
d. All of the above. - Correct Answer: Are designed to protect vehicles from
damage.
You are driving a vehicle that could safely be driven at 55 MPH on an open
road. But traffic is now heavy, moving at 35 MPH although the speed limit is
55. The safest speed for your vehicle in this situation is most likely: a. 55 MPH
b. 45 MPH
c. 35 MPH
d. 25 MPH - Correct Answer: 35 MPH
Every time you park your vehicle and shut the engine off you should: a. Leave
it in gear (if it has a manual transmission).
b. Apply the parking brake.
c. Turn the steering wheel as far to the left as you can.
d. Do all the above. - Correct Answer: Apply the parking brake.
Which of these describes how you should use the brake pedal on a steep
downhill grade? a. Release the brake when you are 5 MPH below your safe
speed, then let your speed come back up to your safe speed and repeat
braking again, (bring you speed down 5 MPH below your safe speed.)
b. With stronger pressure as the vehicle goes downhill.
c. Light steady pressure.
d. Light, pumping action. - Correct Answer: Release the brake when you are 5
MPH below your safe speed, then let your speed come back up to your safe
speed and repeat braking again, (bring you speed down 5 MPH below your
safe speed.)
For an average commercial vehicle, being driven at 55 MPH on dry pavement
it will take about ____ to bring the vehicle to a stop. a. The length of a vehicle.
b. Half the length of a football field.
,c. Twice the length of the vehicle.
d. The length of a football field. - Correct Answer: The length of a football field.
Which of these statements about certain types of cargo is true?
a. Oversize loads can be hauled without special permits during times when the
roads are not busy.
b. When liquids are hauled, the tank should always be loaded totally full.
c. Unstable loads such as hanging meat or livestock require extra caution on
curves.
d. Loads that consist of liquids in bulk do not present vehicle handling
problems because they are usually very heavy. - Correct Answer: Unstable
loads such as hanging meat or livestock require extra caution on curves.
Which of these statements about backing a heavy vehicle is true? a. Backing is
always dangerous.
Which of these statements about backing a heavy vehicle is true?
a. Backing is always dangerous.
b. You should back and turn toward the driver's side whenever possible.
c. You should use a helper and communicate with hand signals.
d. All of the above are true. - Correct Answer: Backing is always dangerous.
When should you wear seat belts?
a. Only in states where it is required by law.
b. Any time you are in a moving vehicle.
c. Only when engaged in interstate commerce.
d. Only when traveling on a highway. - Correct Answer: Any time you are in a
moving vehicle.
The most common cause of serious vehicle skids is: a.
The most common cause of serious vehicle skids is:
a. Driving too fast for road conditions.
b. Poorly designed roads.
c. Poorly adjusted brakes.
d. Poorly adjusted brakes. - Correct Answer: Driving too fast for road
conditions.
If you are being tailgated, you should:
a. Signal the tailgater when it is safe to pass.
b. Speed up.
,c. Flash your brake lights.
d. Increase the space in front of you. - Correct Answer: Increase the space in
front of you.
The parking brake should be tested while the vehicle is:
a. Moving slowly.
b. Moving at highway speed.
c. Going downhill.
d. Parked - Correct Answer: Parked
A drivers trip log, if required:
a. May be brought up to date once a week.
b. Is also called a
c. Must be shown immediately when an officer requests it.
d. All of the above. - Correct Answer: Must be shown immediately when an
officer requests it.
Should the pre-trip inspection report from the last driver be reviewed during
your pre-trip inspection? a. Yes
b. No - Correct Answer: Yes
If you are stopped at a roadside rest and found to have a BAC (Blood Alcohol
Concentration) of .02 you will:
a. In trouble with the dispatcher
b. Be placed out of service for 24 hours
c. Be placed out of service for 48 hours
d. Be placed out of service for 72 hours - Correct Answer: Be placed out of
service for 24 hours
When roads are slippery, you should:
a. Stop and test the traction while going up hills.
b. Drive alongside other drivers.
c. Decreases the distance that you look ahead of your vehicle.
d. Make turns as gently as possible. - Correct Answer: Make turns as gently as
possible.
While driving, you see a small (1 foot square) cardboard box ahead in your
lane. You should: a. Steer around it when it is safe to do so.
b. Hit it with your vehicle to knock it off the road.
, c. Brake hard to avoid hitting it.
d. Stop and direct traffic around it. - Correct Answer: Steer around it when it is
safe to do so.
Which of these pieces of emergency equipment should be carried at all times
in your vehicle?
a. Fire extinguishers.
b. Warning devices for parked vehicles.
c. Spare electrical fuses (if the vehicle uses them).
d. All of the above. - Correct Answer: All of the above
What is counter steering?
a. Using the steering axle brakes to prevent over steering.
b. Steering in the opposite direction from what other drivers expect you to do.
c. Turning the wheel in the opposite direction after steering to avoid a traffic
emergency.
d. Turning the steering wheel counter clockwise. - Correct Answer: Turning
the wheel in the opposite direction after steering to avoid a traffic emergency
You do not have a hazardous materials endorsement on your commercial
drivers license. When can you drive a vehicle hauling hazardous materials?
a. Never
b. Only when the shipment will not cross state lines.
c. Only when the vehicle does not require placards.
d. Only when a person who has the hazardous materials endorsement rides in
the vehicle. - Correct Answer: Only when the vehicle does not require
placards.
You are driving a new truck with a manual transmission. What gear will you
probably have to use to take a long downhill grade
a. A lower gear that you would use to climb the hill.
b. The same gear you would use to climb the hill.
c. A higher gear that you would use to climb the hill.
d. None: newer trucks can coast down hills. - Correct Answer: A lower gear
that you would use to climb the hill.
High beams should be:
a. Dimmed when you are within 100 feet of another vehicle.
b. Used whenever it is safe and legal to do so.
