CDL exam complete questions and
answers 2025 verified
Which of these do not provide extra gears on some trucks? CORRECT ANSWERS
Automatic transmission
Which of these is true about hazardous materials; CORRECT ANSWERS All hazardous
materials present health and safety danger.
Overweight, oversized loads; CORRECT ANSWERS Require special permits
Which of these statements about marking a stopped vehicle is true? CORRECT
ANSWERS If a hill or curve keeps drivers behind you from seeing the vehicle within 500
feet, the reflective triangle should be moved back to give adequate warning.
To avoid an accident you moved to the shoulder. Forced to return to the road , you
should; CORRECT ANSWERS Using mirrors and turn signals, turn sharply to get back
to the road.
The distance that you should look ahead of your vehicle while driving is about
________at low speed. CORRECT ANSWERS 1 block
Containerized loads; CORRECT ANSWERS Generally are used when freight is carried
part way by rail or ship.
When you are parked on the side of the road at night you must; CORRECT ANSWERS
Turn on your four-way-emergency flashers to warn others.
You should use your horn when; CORRECT ANSWERS If it helps to avoid a crash.
You are driving a 40-foot vehicle at 55 mph. The road is dry, and visibility is good. What
is the least amount of space that you need to have in front of your vehicle? CORRECT
ANSWERS 5 seconds
You will be placed out of service for for 24 hours if your blood alcohol concentration
(BAC) is at least; CORRECT ANSWERS Any detectable amount
You are checking your brakes and suspension system for a pre-trip inspection. Which of
these statements is Not true? CORRECT ANSWERS Brake shoes should have brake
fluid on them.
What does emergency braking mean? CORRECT ANSWERS Responding to a hazard
by slowing the vehicle.
, Stab braking should not be used on vehicles with: CORRECT ANSWERS Anti-lock
brakes
You do not have hazardous materials endorsement in your commercial driver license.
you can drive a vehicle hauling hazardous materials when; CORRECT ANSWERS The
vehicle does not require placards.
You should lightly apply your brakes to flash the brake lights if; CORRECT ANSWERS
You are about to exit the road and need to slow down.
What is countersterring? CORRECT ANSWERS Turning the wheel back in the other
direction after steering to avoid a traffic emergency.
Your vehicle will be put out of service if _____ or more leaves in any leaf spring are
missing CORRECT ANSWERS 1/4
When driving in cold weather, your tire tread should: CORRECT ANSWERS Provide
enough traction to push the rig over wet pavement and through snow.
When a coolant container is part of a pressurized system which of these is true?
CORRECT ANSWERS You can check the coolant level of a hot engine.
Drivers of trucks and tractor-trailers with cargo must check that the cargo is well
secured within the first ----- miles of the trip. CORRECT ANSWERS 50
The value specified by the manufacturer as the loaded weight of a combination vehicle
is? CORRECT ANSWERS Gross Combination Weight Rating
The ____ is the rating for the maximum weight that may be pulled or carried by a
coupling. CORRECT ANSWERS Coupling device capacity
If the low air pressure warning signal comes on in a vehicle with air brakes, the driver
should CORRECT ANSWERS Immediately stop driving.
If the air pressure in an air brake system becomes too low, it may: CORRECT
ANSWERS Cause the brakes to stop working.
Dual tires should: CORRECT ANSWERS Not touch one another.
An example of required emergency equipment is: CORRECT ANSWERS A spare
electrical fuse.
If driving a new vehicle, you should familiarize yourself with the controls: CORRECT
ANSWERS Before you start driving.
Using a helper when backing up a large vehicle is: CORRECT ANSWERS Encouraged.
answers 2025 verified
Which of these do not provide extra gears on some trucks? CORRECT ANSWERS
Automatic transmission
Which of these is true about hazardous materials; CORRECT ANSWERS All hazardous
materials present health and safety danger.
Overweight, oversized loads; CORRECT ANSWERS Require special permits
Which of these statements about marking a stopped vehicle is true? CORRECT
ANSWERS If a hill or curve keeps drivers behind you from seeing the vehicle within 500
feet, the reflective triangle should be moved back to give adequate warning.
To avoid an accident you moved to the shoulder. Forced to return to the road , you
should; CORRECT ANSWERS Using mirrors and turn signals, turn sharply to get back
to the road.
The distance that you should look ahead of your vehicle while driving is about
________at low speed. CORRECT ANSWERS 1 block
Containerized loads; CORRECT ANSWERS Generally are used when freight is carried
part way by rail or ship.
When you are parked on the side of the road at night you must; CORRECT ANSWERS
Turn on your four-way-emergency flashers to warn others.
You should use your horn when; CORRECT ANSWERS If it helps to avoid a crash.
You are driving a 40-foot vehicle at 55 mph. The road is dry, and visibility is good. What
is the least amount of space that you need to have in front of your vehicle? CORRECT
ANSWERS 5 seconds
You will be placed out of service for for 24 hours if your blood alcohol concentration
(BAC) is at least; CORRECT ANSWERS Any detectable amount
You are checking your brakes and suspension system for a pre-trip inspection. Which of
these statements is Not true? CORRECT ANSWERS Brake shoes should have brake
fluid on them.
What does emergency braking mean? CORRECT ANSWERS Responding to a hazard
by slowing the vehicle.
, Stab braking should not be used on vehicles with: CORRECT ANSWERS Anti-lock
brakes
You do not have hazardous materials endorsement in your commercial driver license.
you can drive a vehicle hauling hazardous materials when; CORRECT ANSWERS The
vehicle does not require placards.
You should lightly apply your brakes to flash the brake lights if; CORRECT ANSWERS
You are about to exit the road and need to slow down.
What is countersterring? CORRECT ANSWERS Turning the wheel back in the other
direction after steering to avoid a traffic emergency.
Your vehicle will be put out of service if _____ or more leaves in any leaf spring are
missing CORRECT ANSWERS 1/4
When driving in cold weather, your tire tread should: CORRECT ANSWERS Provide
enough traction to push the rig over wet pavement and through snow.
When a coolant container is part of a pressurized system which of these is true?
CORRECT ANSWERS You can check the coolant level of a hot engine.
Drivers of trucks and tractor-trailers with cargo must check that the cargo is well
secured within the first ----- miles of the trip. CORRECT ANSWERS 50
The value specified by the manufacturer as the loaded weight of a combination vehicle
is? CORRECT ANSWERS Gross Combination Weight Rating
The ____ is the rating for the maximum weight that may be pulled or carried by a
coupling. CORRECT ANSWERS Coupling device capacity
If the low air pressure warning signal comes on in a vehicle with air brakes, the driver
should CORRECT ANSWERS Immediately stop driving.
If the air pressure in an air brake system becomes too low, it may: CORRECT
ANSWERS Cause the brakes to stop working.
Dual tires should: CORRECT ANSWERS Not touch one another.
An example of required emergency equipment is: CORRECT ANSWERS A spare
electrical fuse.
If driving a new vehicle, you should familiarize yourself with the controls: CORRECT
ANSWERS Before you start driving.
Using a helper when backing up a large vehicle is: CORRECT ANSWERS Encouraged.
