CDL GENERAL KNOWLEDGE TEST (NJ) - PRACTICE TEST

View instructions
The CDL general knowledge test is required to be taken by all CDL applicants. The New Jersey CDL test consists of 50 questions. To pass, you must correctly answer at least 40 questions (80%). The general knowledge test covers the contents of the New Jersey CDL Manual. All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Vehicle Inspection Test, Basic Control Skills Test, Road Test. In addition, the Class A CDL test will include questions based on the Combination Vehicles section. Take this CDL practice test now to prepare for the actual NJ general knowledge test! To get your CDL, you must pass both the knowledge and skills tests. CDL knowledge tests include: General Knowledge, Passenger Transport, Air Brakes, Combination Vehicles, Hazardous Materials, Tanker Vehicles, Doubles/Triples, School Bus, Firefighter. Depending on what class of license (A, B or C) and endorsements you need, you must take one or more knowledge tests. A special endorsement is also required to drive certain types of vehicles. The following endorsements may be used with a Class A, B or C CDL: HazMat (H), Tank Vehicles (N), Tank Vehicles Transporting Hazardous Materials (X) and Passenger Transport (P). The School Bus endorsement (S) is only available for Class A or B CDL, and the Doubles/Triples endorsement (T) is only available for Class A driver's licenses.
1. If your brakes fail on a steep mountain downgrade, you should:
set the parking brake and park in an open area.
stay on the road and keep looking for the next available escape ramp.
decide what to do as soon as you know your brakes do not work.
slow down until your vehicle comes to a complete stop.
2. Black ice:
is thick enough that it makes the road look dry.
is a thin layer that is clear enough that you can see the road underneath it.
is thick enough that it makes the road look wet.
None of the above.
3. You are driving on a steep downgrade in the proper low gear. Your "safe" speed is 40 mph. When your speed reaches 40 mph, you should:
apply the brakes to gradually reduce your speed to 35 mph, and then release the brakes.
apply the brakes to quickly reduce your speed to 25 mph, and then release the brakes.
maintain your current speed, and apply the brakes when you reach 50 mph to gradually reduce your speed to 40 mph.
increase your speed to approximately 45 mph, and then apply release the brakes.
4. A burning tire must be:
immediately removed from the vehicle.
cooled with water.
covered with cloth.
None of the above.
5. What is the most important hand signal you should agree on with a helper?
Turn right
Stop
Go forward
Keep backing
6. Which of the following is not a sign of fatigue?
Daydreaming
Feeling hungry
Yawning repeatedly
Feeling irritable
7. When your rear wheels lock up, you may:
lose steering control.
gain better control of the vehicle.
skid, jackknife, or spin the vehicle.
All of the above.
8. When driving, you:
should not use turn signals when the road is empty.
should only use turn signals if there is a vehicle behind you.
should carefully evaluate road and traffic conditions to decide if you should use turn signals.
should always use turn signals to tell other drivers your intentions.
9. When you push the brake pedal down, air brakes work:
after a short delay.
immediately.
after about 15 seconds.
only when ABS is working.
10. When passing a parked vehicle, which of the following is the only thing you do NOT need to watch out for?
Lights coming on
Driver's door opening
Passenger door opening
Wheels starting to turn
 
Page 1 of 5
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More

NJ CDL Knowledge Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
Share This Online CDL Test
Rate this CDL Knowledge Test
4.7 out of 5
based on 216 votes