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North Dakota
North Dakota CDL Knowledge Test Class A 1
Answers
Q.1.
When using a fire extinguisher on a fire, you should:
Get as close to the fire as possible.
Stay as far away from the fire as possible.
Aim the extinguisher at the top of the flames.
Aim the fire extinguisher at the ground about two feet away from the fire.
Q.2.
What is another name for front-end header boards?
Headache racks
Cargo stoppers
Head braces
Ballasts
Q.3.
While driving, if it is discovered a vehicle's ABS is not working, the driver should:
Put on their hazard lights.
Downshift.
Brake normally.
Use their parking brake to stop.
Q.4.
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.5.
If one air system in a dual air brake system is very low on pressure:
None of the brakes will work at all.
Either the front or rear brakes will not be operating fully.
There will be no noticeable affect.
Lights on the outside of the tractor will flash.
Q.6.
Loading cargo:
Must be done by the driver.
Can be done by a second person who is responsible for the safety of the cargo.
Can be done by a second person, but the driver is responsible for the safety of the cargo.
Must be done by a person from the shipping company.
Q.7.
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.8.
A vehicle should be equipped with all of the following, except:
A fire extinguisher.
Spare electrical fuses.
Warning devices for parked vehicles, such as flares.
A spotlight.
Q.9.
When driving:
It is best to hide your intentions from others.
You should only use turn signals if there are vehicles near you.
You should not use turn signals in construction zones.
You should always use turn signals to warn others about your intentions.
Q.10.
Spring brakes come on:
When too much air pressure is lost.
When a control on the dashboard is activated.
When the tires have minimal tread depth.
When the brakes are noisy.
Q.11.
An air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately ____ to come to a complete stop.
100 feet
250 feet
300 feet
450 feet
Q.12.
If you see lights ahead while driving in fog:
You can assume the lights are on the road.
It may be a reflection.
It may be an optical illusion.
The lights may not indicate where the road is as the vehicle may have pulled off the roadway.
Q.13.
An air compressor governor will stop the compressor from pumping air once the air tanks have an air pressure level of:
125 psi.
100 psi.
150 psi.
80 psi.
Q.14.
Driving too fast:
Is a major cause of fatal crashes.
Can be a good way to get to your destination quickly.
Should only be done if the roadway is dry.
Is acceptable in light traffic.
Q.15.
If you are unsure if there is enough space for your vehicle to safely travel under a bridge, you should:
Speed up.
Swerve as you pass under the bridge.
Slow down.
Drive on the shoulder.
Q.16.
If unsure if a road is becoming icy, a driver can:
Guess.
Open the window and check the front of the mirror for ice.
Try to look at the road closely.
Look at a weather forecast.
Q.17.
Mirror adjustment should be:
Checked once a month.
Checked before every trip.
Checked, but only if the driver plans to use the mirrors.
Q.18.
What is the minimum permitted size of a placard?
Four square inches
Seven square inches
10 ¾ square inches
32 square inches
Q.19.
If confronted by an aggressive driver, you should:
Make eye contact with the driver.
React to the driver's gestures.
Challenge the driver to a road race.
Ignore the driver, if possible.
Q.20.
If a tire fails, you should:
Use the brakes.
Stay off the brakes.
Swerve.
Wave your arms at other drivers.
Q.21.
Slippery roadways usually:
Make it more difficult to stop a vehicle.
Make it easier to stop a vehicle.
Make it easier to drive a vehicle.
Can be avoided by driving at night.
Q.22.
A one-way check valve:
Drains the water and compressor oil from the air tanks.
Prevents air from escaping if the air compressor has a leak.
Activates the emergency brakes when there is a leak.
Holds the spring brakes in position until they are used.
Q.23.
If cargo on a flatbed trailer is 40 feet long, it must be secured by a minimum of:
One tie-down.
Two tie-downs.
Three tie-downs.
Four tie-downs.
Q.24.
When checking your mirrors:
Do not use the passenger side mirror.
Do not use the driver's side mirror.
Both mirrors should be used.
Look in each mirror for long stretches of time.
Q.25.
An open automobile window in cold weather may indicate that the driver is:
Driving impaired.
Inappropriately dressed.
Using the heat inside their vehicle.
Enjoying the fresh air.
Q.26.
When driving at highway speeds, you should watch the road about ____ ahead of your vehicle.
One block
100 yards
One quarter mile
One mile
Q.27.
Which of the following is not an example of a driver who might be a hazard?
A driver operating a vehicle without first scraping ice off the windshield
The operator of a rental truck
The driver of a station wagon with items covering the back windows
A person operating a pick-up truck
Q.28.
If loading cargo that will not entirely fill up a trailer, the cargo should be placed:
At the front of the trailer.
At the rear of the trailer.
In the middle of the trailer.
Anywhere in the trailer.
Q.29.
____ is a thin layer of ice that forms on road surfaces.
White ice
Black ice
Green ice
Blue ice
Q.30.
Poisonous fumes can enter a truck's cab due to:
A defective exhaust system.
The wrong type of fuel being used.
A lack of oil in the engine.
Under-inflated tires.
Q.31.
Why are roads especially slippery right after it begins to rain?
The water mixes with oil and grease on the road.
Roads are naturally slippery.
Gravel often gets washed to the middle of the lane.
Tires are not usually designed to drive in rain.
Q.32.
A modulating control valve can control the:
Spring brakes.
Landing gear.
Air brakes.
Anti-lock braking system (ABS).
Q.33.
When starting the engine as part of the pre-trip inspection, the driver should:
Listen for unusual noises.
Rev the engine.
Turn up the radio.
Turn on the heater.
Q.34.
When about to drive a vehicle with a dual brake system, a driver should:
Let the vehicle warm up to ensure the fuel reaches the engine.
Wait for air pressure to build in both the primary and secondary systems.
Begin driving just after the engine starts.
Pump the pedal about 20 times to build pressure, then begin driving.
Q.35.
In cold weather, an alcohol evaporator should be checked and filled:
Once a week.
Every day.
Every hour.
Once a month.
Q.36.
When crossing railroad tracks, you should:
Not stop.
Try to pass slower vehicles.
Change lanes.
Put the vehicle in neutral.
Q.37.
Vehicles with dual air brake systems:
Maintain full-capacity air pressure in the braking systems even when the vehicle is not running.
Maintain some air pressure in the braking systems when the vehicle is not running.
Must be run to build enough air pressure to brakes to operate properly.
Do not need time to build air pressure before a trip.
Q.38.
A vehicle must be equipped with all of the following, except:
A fire extinguisher.
Spare electrical fuses.
Warning devices for a parked vehicle.
A flashlight.
Q.39.
The Individual Vehicle Distance Record (IVDR) must include all of the following, except:
The date of trip.
The route of travel.
The total distance traveled.
The number of stops.
Q.40.
Rough acceleration:
Can damage a vehicle.
Is necessary to warm up parts of the engine.
Is encouraged to improve gas mileage.
Should be done on surfaces with poor traction.
Q.41.
Which of the following can help you determine when to upshift?
Road speed
Engine speed
Both of the above
None of the above
Q.42.
What is a concern immediately after it begins raining?
The water will mix with grease and oil on the road, making the roadway slippery.
A driver may forget where the windshield wiper lever is located.
It may stop raining.
People will be using their windshield wipers needlessly.
Q.43.
What is black ice?
A thick layer of ice on the road
A thin layer of ice on the road
Ice that is black from debris on the road
Ice that is easily seen
Q.44.
If someone pulls out in front of you and you cannot stop to avoid a crash, you should:
Just hit the other vehicle since it will be the other driver's fault.
Swerve to avoid the other car.
Put your vehicle in reverse.
Accelerate.
Q.45.
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.46.
When driving with covered cargo, a cover that flaps:
Is acceptable.
Allows air to keep the cargo cool.
Can tear loose.
Can attract birds.
Q.47.
What do headers do?
Protect the driver during a crash
Provide a place for storage
Ensure that controls are accessible
Act as wind guards
Q.48.
A vehicle equipped with an Anti-Lock Braking System (ABS) uses a ____ light to warn that the system is not working properly.
White
Green
Yellow
Orange
Q.49.
Brake fading is caused when:
Brakes are not used often enough.
Brakes overheat.
Brakes are too cold.
Brakes are wet.
Q.50.
The front of an enclosed trailer should:
Be swept clean.
Contain rags.
Not be used for cargo.
Be free of cracks.
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