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New Jersey CDL Class A Knowledge Test 1
Practice mode
Question
1
of 25
QUESTION 1 / 25
When traveling down a long downgrade, you should brake by:
Choose one answer below.
A
Only using the brakes.
✓
B
Mostly using the brakes and downshifting occasionally.
✓
C
Downshifting and then using brakes.
✓
D
Never using the brakes.
✓
QUESTION 2 / 25
If cargo on a flatbed trailer is 40 feet long, it must be secured by a minimum of:
Choose one answer below.
A
One tie-down.
✓
B
Two tie-downs.
✓
C
Three tie-downs.
✓
D
Four tie-downs.
✓
QUESTION 3 / 25
Sending text messages while driving:
Choose one answer below.
A
May be done if the messages are short.
✓
B
Is encouraged.
✓
C
Is permitted if you are asking a question of your employer.
✓
D
Is not permitted.
✓
QUESTION 4 / 25
During an applied leakage test, the maximum leakage rate for a single vehicle with air brakes is:
Choose one answer below.
A
3 psi in one minute.
✓
B
6 psi in one minute.
✓
C
8 psi in one minute.
✓
D
4 psi in one minute.
✓
QUESTION 5 / 25
When loading a trailer, it is important to:
Choose one answer below.
A
Place as little weight as possible over the axles.
✓
B
Place an appropriate amount of weight over the axles.
✓
C
Not be concerned about how the weight is distributed.
✓
D
Only place weight over the axles.
✓
QUESTION 6 / 25
When asked about the vehicle's oil during the vehicle inspection test, you must be able to do all of the following, except:
Choose one answer below.
A
Indicate where the dipstick is located.
✓
B
Show that the oil level is within a safe operating range.
✓
C
Show that the oil level is above the refill mark.
✓
D
Show that the oil level is below the refill mark.
✓
QUESTION 7 / 25
Pressing and releasing the brake pedal unnecessarily can:
Choose one answer below.
A
Release air faster than it can be replaced.
✓
B
Add more air to a brake system.
✓
C
Make the brake pedal harder to depress.
✓
D
Create a loud noise.
✓
QUESTION 8 / 25
Spring brakes come on:
Choose one answer below.
A
When too much air pressure is lost.
✓
B
When a control on the dashboard is activated.
✓
C
When the tires have minimal tread depth.
✓
D
When the brakes are noisy.
✓
QUESTION 9 / 25
Mirror adjustment can only be checked properly if:
Choose one answer below.
A
The trailer is straight.
✓
B
There is no trailer attached to the tractor.
✓
C
The vehicle is on a slight incline.
✓
D
The vehicle is on a slight decline.
✓
QUESTION 10 / 25
When completing pre-trip inspections:
Choose one answer below.
A
The inspections should be done the same way each time.
✓
B
Different items should be checked each time.
✓
C
It is acceptable to check items in a different order each time.
✓
D
Not every item needs to be inspected each time.
✓
QUESTION 11 / 25
When a brake pedal is pressed and the S-cam is turned, the S-cam:
Choose one answer below.
A
Presses the brake shoes against the inside of the brake drum.
✓
B
Tightens the brake drum onto the axle.
✓
C
Presses the brake lining against the wheel.
✓
D
Releases air from the air tanks.
✓
QUESTION 12 / 25
Parts of an exhaust system should be:
Choose one answer below.
A
Loose.
✓
B
Leaking.
✓
C
Fastened securely.
✓
D
Cracked.
✓
QUESTION 13 / 25
The most important reason to inspect your vehicle before a trip is:
Choose one answer below.
A
To ensure safety.
✓
B
To maximize gas mileage.
✓
C
To wake up before the drive.
✓
D
To fill up time.
✓
QUESTION 14 / 25
The parking brake should be:
Choose one answer below.
A
Used whenever you park your vehicle.
✓
B
Used while driving.
✓
C
Set when driving in bad weather.
✓
D
Removed.
✓
QUESTION 15 / 25
When trying to put out an electrical fire:
Choose one answer below.
A
Use water.
✓
B
Use a B or C extinguisher.
✓
C
Use an X extinguisher.
✓
D
Use a Q extinguisher.
✓
QUESTION 16 / 25
When checking your mirrors:
Choose one answer below.
A
Do not use the passenger side mirror.
✓
B
Do not use the driver's side mirror.
✓
C
Both mirrors should be used.
✓
D
Look in each mirror for long stretches of time.
✓
QUESTION 17 / 25
Which of the following is not a good rule to follow when using turn signals?
Choose one answer below.
A
Signal early.
✓
B
Signal continuously.
✓
C
Do not use your turn signal if you think others know what you plan to do.
✓
D
Cancel your signal after the turn is completed.
✓
QUESTION 18 / 25
A suspension system:
Choose one answer below.
A
Has a weight capacity rating.
✓
B
Uses pressurized water to support the load.
✓
C
Can handle any weight load.
✓
D
Has a minimum weight rating.
✓
QUESTION 19 / 25
If you plan to slow down, you can warn drivers behind you by:
Choose one answer below.
A
Slamming on the brakes.
✓
B
Tapping the brakes a few times and before braking.
✓
C
Turning on one set of turn signals.
✓
D
Putting your hand out the driver's side window and waving.
✓
QUESTION 20 / 25
When you are driving while drowsy, you should:
Choose one answer below.
A
Press on and try to finish the trip.
✓
B
Take drugs to keep awake.
✓
C
Stop and take a nap.
✓
D
Stop for a coffee break.
✓
QUESTION 21 / 25
When starting the engine of a truck with a trailer, how can you tell if the Anti-Lock Braking System (ABS) is not working?
Choose one answer below.
A
The yellow light on the rear of the trailer will stay on.
✓
B
The red light on the trailer will flash three times and then stay on.
✓
C
All the rear lights on the trailer will flash and then shut off.
✓
D
The blue light near the driver's door will light.
✓
QUESTION 22 / 25
What can happen if a parking brake is used in very wet weather when temperatures are below freezing?
Choose one answer below.
A
The brakes will squeak.
✓
B
The brakes may freeze so the vehicle cannot move.
✓
C
The brakes may suddenly release by themselves.
✓
D
The brakes may explode.
✓
QUESTION 23 / 25
During a basic vehicle control skills test, you may be asked to:
Choose one answer below.
A
Pull forward into a parking space.
✓
B
Drive in a figure eight.
✓
C
Alley dock.
✓
D
Sound your horn.
✓
QUESTION 24 / 25
If a vehicle gets stuck on a railroad track, the driver should:
Choose one answer below.
A
Stay in the vehicle and try to restart the vehicle.
✓
B
Get out of the vehicle and walk away from the tracks.
✓
C
Try to flag down another vehicle to give them a push.
✓
D
Wait in the vehicle for a law enforcement officer to arrive.
✓
QUESTION 25 / 25
One way to overcome the challenges of blind spots is to:
Choose one answer below.
A
Drive faster than surrounding vehicles so no other drivers can pass you.
✓
B
Drive in the left lane, allowing you to only worry about vehicles to your right.
✓
C
Make frequent mirror checks and assess the positions of surrounding vehicles.
✓
D
Avoid using your mirrors.
✓
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