Save Time and Get a Pass Guarantee! LIMITED-TIME OFFER: Get CDL PREMIUM Now and SAVE $64! Upgrade To Premium


View instructions
The CDL general knowledge test is required to be taken by all CDL applicants. The New Hampshire 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 Hampshire 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 NH 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. Which of the following statements about tire failure is true?
If the steering feels heavy, it may be a sign one of the rear tires has failed.
It can take a few seconds for your vehicle to react, and you might think it was some other vehicle.
Any time you hear a tire blow, you would be safest to assume it is not yours.
All of the above.
2. The earliest way to recognize that your trailer has started to skid is:
by hearing squeaking noises from the wheels.
by checking your mirrors.
by checking the jackknife sensor.
by releasing the brakes.
3. To control your speed on a downgrade, you should:
coast in neutral.
fully apply the brakes.
use engine braking.
use controlled braking.
4. When inspecting brakes, you should look for:
cracked drums.
shoes worn dangerously thin.
pads with oil, grease, or brake fluid on them.
All of the above.
5. In a vehicle with a dual air brake system:
both systems typically operate the regular brakes on the rear axle.
each system has its own air tanks.
one system supplies air to the trailer.
All of the above.
6. To avoid becoming distracted while driving, you should:
be careful when reading a text message on your mobiledevice while driving.
pre-program your favorite radio stations.
familiarize yourself with your vehicle's features within the first 10 miles of driving.
All of the above.
7. If there is a fire and you are not sure what to use to put it out, you should:
wait for firefighters.
use water.
use a fire extinguisher.
use dry powder.
8. The air storage tanks:
stop the compressor from pumping air.
protects the tank and the rest of the system from too much pressure.
are used to hold compressed air.
are connected to the engine through gears or a v-belt.
9. Gross vehicle weight (GVW) is:
the total weight of the trailer or trailers.
the total weight of a single vehicle including its load.
the total weight of a single vehicle, except its load.
the total weight of the vehicle axle.
10. When driving in heavy traffic, the safest speed is:
slower than the speed of other traffic.
the posted speed limit.
slightly higher than the speed of other traffic.
the speed of traffic.
Page 1 of 5
Next page  
Rate This Free Test
5 out of 5
based on 355 votes

NH CDL Knowledge Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
Number of questions: 50
Correct answers to pass:40
Passing score:80%
Share This Online CDL Test