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New Jersey
New Jersey CDL Knowledge Test Class A 1
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Q.1
Submit
When traveling down a long downgrade, you should brake by:
Only using the brakes.
Mostly using the brakes and downshifting occasionally.
Downshifting and then using brakes.
Never using the brakes.
Q.2
Submit
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.3
Submit
Sending text messages while driving:
May be done if the messages are short.
Is encouraged.
Is permitted if you are asking a question of your employer.
Is not permitted.
Q.4
Submit
During an applied leakage test, the maximum leakage rate for a single vehicle with air brakes is:
3 psi in one minute.
6 psi in one minute.
8 psi in one minute.
4 psi in one minute.
Q.5
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When loading a trailer, it is important to:
Place as little weight as possible over the axles.
Place an appropriate amount of weight over the axles.
Not be concerned about how the weight is distributed.
Only place weight over the axles.
Q.6
Submit
When asked about the vehicle's oil during the vehicle inspection test, you must be able to do all of the following, except:
Indicate where the dipstick is located.
Show that the oil level is within a safe operating range.
Show that the oil level is above the refill mark.
Show that the oil level is below the refill mark.
Q.7
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Pressing and releasing the brake pedal unnecessarily can:
Release air faster than it can be replaced.
Add more air to a brake system.
Make the brake pedal harder to depress.
Create a loud noise.
Q.8
Submit
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.9
Submit
Mirror adjustment can only be checked properly if:
The trailer is straight.
There is no trailer attached to the tractor.
The vehicle is on a slight incline.
The vehicle is on a slight decline.
Q.10
Submit
When completing pre-trip inspections:
The inspections should be done the same way each time.
Different items should be checked each time.
It is acceptable to check items in a different order each time.
Not every item needs to be inspected each time.
Q.11
Submit
When a brake pedal is pressed and the S-cam is turned, the S-cam:
Presses the brake shoes against the inside of the brake drum.
Tightens the brake drum onto the axle.
Presses the brake lining against the wheel.
Releases air from the air tanks.
Q.12
Submit
Parts of an exhaust system should be:
Loose.
Leaking.
Fastened securely.
Cracked.
Q.13
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The most important reason to inspect your vehicle before a trip is:
To ensure safety.
To maximize gas mileage.
To wake up before the drive.
To fill up time.
Q.14
Submit
The parking brake should be:
Used whenever you park your vehicle.
Used while driving.
Set when driving in bad weather.
Removed.
Q.15
Submit
When trying to put out an electrical fire:
Use water.
Use a B or C extinguisher.
Use an X extinguisher.
Use a Q extinguisher.
Q.16
Submit
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.17
Submit
Which of the following is not a good rule to follow when using turn signals?
Signal early.
Signal continuously.
Do not use your turn signal if you think others know what you plan to do.
Cancel your signal after the turn is completed.
Q.18
Submit
A suspension system:
Has a weight capacity rating.
Uses pressurized water to support the load.
Can handle any weight load.
Has a minimum weight rating.
Q.19
Submit
If you plan to slow down, you can warn drivers behind you by:
Slamming on the brakes.
Tapping the brakes a few times and before braking.
Turning on one set of turn signals.
Putting your hand out the driver's side window and waving.
Q.20
Submit
When you are driving while drowsy, you should:
Press on and try to finish the trip.
Take drugs to keep awake.
Stop and take a nap.
Stop for a coffee break.
Q.21
Submit
When starting the engine of a truck with a trailer, how can you tell if the Anti-Lock Braking System (ABS) is not working?
The yellow light on the rear of the trailer will stay on.
The red light on the trailer will flash three times and then stay on.
All the rear lights on the trailer will flash and then shut off.
The blue light near the driver's door will light.
Q.22
Submit
What can happen if a parking brake is used in very wet weather when temperatures are below freezing?
The brakes will squeak.
The brakes may freeze so the vehicle cannot move.
The brakes may suddenly release by themselves.
The brakes may explode.
Q.23
Submit
During a basic vehicle control skills test, you may be asked to:
Pull forward into a parking space.
Drive in a figure eight.
Alley dock.
Sound your horn.
Q.24
Submit
If a vehicle gets stuck on a railroad track, the driver should:
Stay in the vehicle and try to restart the vehicle.
Get out of the vehicle and walk away from the tracks.
Try to flag down another vehicle to give them a push.
Wait in the vehicle for a law enforcement officer to arrive.
Q.25
Submit
One way to overcome the challenges of blind spots is to:
Drive faster than surrounding vehicles so no other drivers can pass you.
Drive in the left lane, allowing you to only worry about vehicles to your right.
Make frequent mirror checks and assess the positions of surrounding vehicles.
Avoid using your mirrors.
Q.26
Submit
The brake pedal is part of which braking system?
The service brake system
The parking brake system
The emergency brake system
The auxiliary brake system
Q.27
Submit
During a pre-trip inspection, what is the best method for checking your lights?
Parking near a mirror to look for a reflection
Activating the lights, then exiting the vehicle to check
Looking on the instrument panel to see if any warning lights are illuminated
Driving in traffic and waiting for other drivers to let you know your lights are out
Q.28
Submit
The suspension system:
Holds up the vehicle and its load.
Keeps the load the proper distance behind the driver’s compartment.
Maintains a safe distance between the vehicle and other vehicles.
Lightens the load for the tires.
Q.29
Submit
What can happen if one-fourth of the leaves in a leaf spring are missing when a vehicle is inspected?
The vehicle’s driver will be allowed to drive, but only at reduced speeds.
The vehicle will be put out-of-service until it is fixed.
The vehicle will be fine to drive since most of the spring is in place.
The driver will be asked to decrease the weight of the load.
Q.30
Submit
If a CMV driver operates a CMV with a detectable blood alcohol concentration (BAC) that is lower than 0.04 percent, they will be:
Told to stop drinking.
Put out-of-service for 24 hours.
Required to drive at speeds below 55 mph.
Told to drive home.
Q.31
Submit
What does the air compressor governor do?
Controls when the air compressor pumps air into the air storage tanks.
Controls how quickly air leaves the air storage tanks.
Controls the temperature of the air entering the air storage tanks.
Controls the temperature of the air leaving the air storage tanks.
Q.32
Submit
When going down a steep downhill, your primary source of braking should be:
Engine adjustments/downshifting.
Using the brake.
Using the parking brake.
Using ABS.
Q.33
Submit
Which of the following is not another name for convex mirrors?
Fisheye mirrors
Spot mirrors
Bug-eye mirrors
Flat side mirrors
Q.34
Submit
On a truck with air brakes, the braking system’s air compressor:
Pumps air into the air storage tanks.
Fills the tires.
Moves air to the back of the truck.
Cleans the brakes.
Q.35
Submit
Most heavy-duty vehicles use:
Mono air brake systems.
Dual air brake systems.
Triple air brake systems.
Quadruple air brake systems.
Q.36
Submit
If your tractor is equipped with ABS but your trailer is not, the ABS:
Will not be effective.
Will still improve your steering control.
Will make jackknifing easier.
Will allow others to see when you brake.
Q.37
Submit
Which of the following is not an activity that causes a distraction?
Adjusting the radio
Adjusting the CD player
Eating
Checking your mirrors
Q.38
Submit
Joggers who are wearing headsets:
Are usually aware of what is happening around them.
May not be aware of what is happening around them.
Can clearly hear sounds of traffic.
Usually don’t have music playing.
Q.39
Submit
The height of a vehicle’s center of gravity:
Usually has no impact on the handling the vehicle.
Plays a large role in a driver's ability to safely handle the vehicle.
Should not be a concern when loading the vehicle.
Should only be a concern if there are lots of hills on the planned route.
Q.40
Submit
When taking the on-road driving skills test, you will be evaluated on your gear usage. You should not:
Avoid grinding or clashing gears.
Select a gear that does not rev the engine.
Forget to shift through an intersection.
Shift while taking a turn.
Q.41
Submit
When carrying a wide load, you should:
Drive as fast as possible.
Obtain special permits and follow special rules, such as driving during certain hours.
Honk at other drivers to get them to move from the lane closest to you.
Drive on the shoulder.
Q.42
Submit
How can a person check for a leak in hydraulic brakes?
Pump the brake pedal three times and hold the pedal for five seconds. If the pedal moves, there may be a problem.
Push the brake pedal down as far as possible and let go. If the brake pedal returns to its normal position, there may be a problem.
Push the brake pedal down as far as possible and let go. If the brake makes a squeak, there may be a problem.
Remove the rear wheel and listen for a noise when the brake pedal is depressed.
Q.43
Submit
Mirrors should be adjusted:
While moving.
When the trailers are straight.
When you are standing next to the vehicle.
By an assistant.
Q.44
Submit
The best way to avoid glare at night from oncoming vehicles is to:
Wear sunglasses.
Close your eyes as vehicles approach.
Look to the right side of road.
Use your high beams.
Q.45
Submit
What is removed when an air tank is drained?
Water and oil
Ammonia
Wood
Chlorine
Q.46
Submit
A truck may need to be under the legal maximum weight limit when being driven:
On a flat road.
On a mountainous road.
In heavy traffic.
At night.
Q.47
Submit
Dry bulk tanks require special care because:
They have low centers of gravity.
They have high centers of gravity.
Loads are usually stable.
They are usually overloaded.
Q.48
Submit
Which of the following is not a possible cause of a fire?
Under-inflated tires
Electrical system failures
Flammable cargo
Rolling down the window
Q.49
Submit
How does doubling your speed from 20 mph to 40 mph affect your vehicle's braking distance?
It stays about the same.
It increases slightly.
It doubles.
It quadruples.
Q.50
Submit
To use the stab braking method, you should:
Apply the brakes completely until the wheels lock up, release the brakes until the wheels start rolling, then repeat the process.
Apply the brakes about halfway, but allow the wheels to keep rolling.
Apply the brakes completely until the wheels lock up and the vehicle stops.
Apply the emergency brake until the vehicle starts to slow.
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