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North Carolina
North Carolina CDL Knowledge Test Class B 1
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Q.1
Submit
Hanging meat as cargo is usually:
Very stable.
Easy to handle.
Unstable.
Q.2
Submit
Which of the following is not a crime that would disqualify an applicant from a hazardous materials endorsement?
Arson
Dishonesty
Robbery
Littering
Q.3
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To receive a hazardous materials endorsement, an applicant will be required to supply:
Their fingerprints.
Their shoe size.
A list of countries visited within the last 10 years.
Their employment history for the previous five years.
Q.4
Submit
Poor weight balance:
Improves handling.
Can negatively affect handling.
Will reduce fuel consumption.
Q.5
Submit
The use of a hand-held mobile device while driving is:
Prohibited.
Acceptable if weather conditions are clear.
Permitted if use is work-related.
Q.6
Submit
What is tire load?
The maximum air pressure of a specific tire
The maximum safe weight that a tire can carry at a specified pressure
The minimum safe weight that can be carried by a tire
The average weight of tires on a vehicle
Q.7
Submit
What does the vehicle inspection report do?
Inform the motor carrier about problems that may need fixing
Ensure that the vehicle is inspected regularly
Keep people accountable for inspecting the vehicle
Q.8
Submit
Convex mirrors:
Cannot be used on vehicles transporting hazardous materials.
Can replace flat mirrors.
Can be helpful to see a wider area.
Are illegal to be used in most states.
Q.9
Submit
Cargo with a high center of gravity:
Can make a vehicle likely to tip over.
Is encouraged in inclement weather.
Is required on some roads.
Q.10
Submit
When traveling down a hill:
Your speed will not change.
Your speed will decrease.
Your speed will increase.
You will slow to a stop.
Q.11
Submit
When you leave your vehicle, you should:
Apply the parking brake.
Apply the air brake.
Not apply any brake.
Leave the door open.
Q.12
Submit
What kind of force must emergency brakes use?
Air pressure
Mechanical
Heavy
Electrical
Q.13
Submit
Federal and state laws require:
Drivers to regularly inspect their vehicles.
Drivers to inspect their vehicles, but only if they believe there may be a problem.
Drivers to inspect their vehicles if planning to travel out-of-state.
Drivers to inspect their vehicles, but only if they will be transporting hazardous materials.
Q.14
Submit
A CMV should:
Not have a fire extinguisher, unless transporting hazardous materials.
Not have a fire extinguisher, unless the vehicle will be traveling through remote areas.
Not have a fire extinguisher.
Have a fire extinguisher and other emergency equipment.
Q.15
Submit
If your wheels being to spin when accelerating on a poor traction surface, you should:
Use the brakes.
Take your foot off the accelerator.
Continue to accelerate.
Q.16
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If coolant has to be added to a system without a recovery tank, you should:
Keep the vehicle running while adding coolant.
Open the radiator cap quickly.
Not use gloves to touch the radiator cap.
Wait for the engine to cool before adding coolant.
Q.17
Submit
What does an Anti-Lock Braking System (ABS) do?
Allow the rear wheels to lock up
Allow all wheels to lock up
Help prevent wheel lockup
Alert other motorists when you are braking
Q.18
Submit
Before driving a vehicle with air brakes, you should ensure that the ____ come on automatically when air pressure falls below 45 psi.
Spring brakes
Parking brakes
Air brakes
Q.19
Submit
If asked to sight-side back your vehicle into an alley, you should first:
Pull directly into the alley parking space.
Turn your vehicle to the right to position yourself directly in front of the alley.
Pull past the alley and stop perpendicular to the outer boundary.
Pull past the alley and stop parallel to the outer boundary.
Q.20
Submit
When leaving your vehicle unattended:
The parking brake should be used.
The parking brake only needs to be used if the vehicle is parked on a slope.
The parking brake should not be used, as it can damage the tires.
Q.21
Submit
____ is an example of required emergency equipment.
A spare electrical fuse
A loud horn
A battery-operated flashlight
Q.22
Submit
Hydraulic brakes can fail for one of two reasons. Which of the following is one of those reasons?
There is a loss of hydraulic pressure.
You are driving uphill.
The brakes get too cold.
The brakes are used too much in one day.
Q.23
Submit
Which of the following may result in an applicant being denied a hazardous materials endorsement?
They are not a lawful permanent resident of the United States.
They have had a speeding conviction within the previous three years.
They did not correctly answer every question on the written hazardous materials endorsement test.
They did not pass the written hazardous materials endorsement test on the first attempt.
Q.24
Submit
Dual tires should:
Always come into contact with one another.
Come into contact with one another fairly regularly.
Not come into contact with one another.
Q.25
Submit
A distracted driver:
Usually reacts well to hazards.
Usually has slowed perception.
Is usually aware of what is happening around them.
Is a good person to follow.
Q.26
Submit
If you need to travel down a hill, you should switch into a lower gear:
After you start moving downhill.
As you go downhill and pick up speed.
Before you start moving downhill.
Near the bottom of the hill.
Q.27
Submit
When traveling with cargo, you must make sure the cargo is secure:
No more than two times.
Every 150 miles or three hours of driving.
Only after traveling up a hill.
Only after coming to a hard stop.
Q.28
Submit
Which of the following is not an example of a distracted person that motorists should be worried about?
A driver talking to a passenger in their vehicle
A child on the side of the road
A construction worker on the side of the road
A person sitting on a bench waiting for a bus
Q.29
Submit
Wheels with welding repairs are:
Safe to be used if the repairs were done by a professional.
Safe to be used if the repair seems solid.
Not safe to be used.
Q.30
Submit
How could you reduce your stress while driving?
Drink a caffeinated beverage
Talk on your cell phone
Gesture at other drivers
Listen to calming music
Q.31
Submit
When leaving a vehicle unattended, a driver should:
Always set the parking brake.
Only set the parking brake if the vehicle is parked on a slope.
Deflate the tires by 10 percent.
Q.32
Submit
To prevent fatigue while driving, you should:
Keep the cab warm.
Keep the cab cool.
Keep the cab poorly ventilated.
Close the vents.
Q.33
Submit
When taking the basic vehicle control skills test:
Points are deducted for each pull-up.
A driver is allowed three pull-ups per maneuver.
A pull-up will earn points only if the driver gets out of the vehicle before pulling up.
Only an excessive number of pull-ups will be counted as errors.
Q.34
Submit
Which of the following indicates drowsy driving?
Eyes going out of focus by themselves
Having trouble keeping your head up
Drifting from lane to lane
All of the above
Q.35
Submit
Broken suspension parts:
Are not a cause for concern.
Are extremely dangerous.
Cannot be identified.
Q.36
Submit
Regrooved tires:
Should not be used on any vehicle.
Should not be used on the front of a bus.
Should not be used on trucks hauling gravel.
Q.37
Submit
Rims with welding repairs:
Are not safe to use.
Are acceptable to be used on tires in the rear of the vehicle.
Are acceptable to be used if carrying a light load.
Q.38
Submit
When driving down a steep grade:
You should ride your brakes all the way down.
Shift into a higher gear as a way to slow down your vehicle.
Shift into lower gears as a way to slow down your vehicle.
The truck should be put in neutral as a way to slow down your vehicle.
Q.39
Submit
Reading a text message while driving is:
Encouraged.
Allowed only if you are not pulling a trailer.
Illegal.
Q.40
Submit
What is another name for front-end header boards?
Headache racks
Cargo stoppers
Head braces
Ballasts
Q.41
Submit
If there is a cargo fire in a box trailer:
The trailer doors should be opened.
The trailer doors should not be opened.
A large, heavy blanket should be put over the trailer.
Q.42
Submit
Once the air tanks are at an air pressure level of 125 psi, the air compressor governor will:
Stop the compressor from pumping air.
Release air from the tanks.
Begin pumping air into the tanks.
Q.43
Submit
If stopped on the road or shoulder, within 10 minutes, you must:
Place emergency warning devices.
Alert local law enforcement.
Stand behind your vehicle and motion for traffic to pass you.
Call a mechanic.
Q.44
Submit
While driving, a driver should:
Not be concerned with what is happening on the sides of their vehicle.
Be concerned with what is happening on all sides of the vehicle.
Not be concerned with what is happening behind the vehicle.
Q.45
Submit
When taking the basic control skills test, drivers are:
Not permitted to stop and exit the vehicle to look at the vehicle’s position.
Encouraged not to exit the vehicle to look at the vehicle’s position.
Allowed to leave the vehicle, but only if the vehicle is placed in reverse.
Allowed to leave the vehicle, but only if the vehicle is placed in neutral and the parking brake is set.
Q.46
Submit
Before attempting to put out an engine fire:
The hood should be opened.
The engine should be turned off.
The accelerator should be depressed to use up the remaining fuel.
Q.47
Submit
If you are confronted by an aggressive driver, you should:
Make eye contact with the driver.
Stay in the driver's lane.
Try to race the driver.
Ignore the driver's gestures.
Q.48
Submit
Sometimes, when checking the automatic transmission fluid level:
Your vehicle should be parked uphill.
Your vehicle should be parked downhill.
Your vehicle should be washed.
Your vehicle may have to be left running.
Q.49
Submit
In a newer vehicle, you apply the parking brake:
By using a diamond-shaped yellow knob.
By using a round red knob.
By using a square green knob.
By using a black round knob.
Q.50
Submit
During an applied leakage test, the maximum leakage rate for a triple combination vehicle is:
10 psi in a minute.
8 psi in a minute.
6 psi in a minute.
4 psi in a minute.
0 h : 0 m : 1 s
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