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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.
When transporting cargo, you are NOT responsible for:
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ensuring that cargo is loaded safely and securely.
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inspecting your cargo.
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the price of the cargo.
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recognizing poorly balanced weight.
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2.
On
a tractor-trailer equipped with a trailer brake hand
valve, the hand valve can be used to:
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hold compressed air.
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reduce the chance of the front wheels skidding.
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keep from rolling back.
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prevent movement of cargo.
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3.
When the road is very slippery, you should:
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downshift to stop.
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apply the brakes often to keep the linings dry.
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stop at the first safe place.
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use the parking brake instead of the service brake.
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4.
The aggregate working load limit of your cargo tie-downs must be at least _____ times the weight of the cargo.
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2
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1.5
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1/2
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4
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5.
Which of the following statements about accelerating is TRUE?
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Rough acceleration can cause mechanical damage.
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When traction is poor, you should avoid speeding up gradually.
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If the drive wheels begin to spin, speed up to regain traction.
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All of the above.
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6.
Class 8 hazardous materials include:
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Poison
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Corrosives
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Explosive materials
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Flammable solids
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7.
When driving in work zones you should:
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Observe the posted speed limits at all times.
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Use your four-way flashers or brake lights to warn drivers behind you.
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Drive slowly and carefully.
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All of the above.
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8.
Which of the following is NOT TRUE?
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In many states, spill protection for covered cargo is a requirement.
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You should check that you don't exceed gross and axle weight limits.
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You should regularly inspect the contents of sealed loads.
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You should cover cargo to protect it from the weather.
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9.
The space under a heavily loaded vehicle can be very small. This can cause problems:
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when crossing railroad tracks.
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on unpaved yards.
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on dirt roads.
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All of the above.
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10.
When only the tractor has ABS:
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there is less chance of jackknifing.
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it will be much more difficult to maintain steering control.
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there is an increased chance of jackknifing.
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the brakes won't work as effectively as without ABS.
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