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The CDL general knowledge test is required to be taken by all CDL applicants. The Massachusetts 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 Massachusetts 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 MA 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. The Individual Vehicle Distance Record (IVDR) must include all of the following except:
Trip origin and destination
Date of trip
Number of stops
Total distance traveled
2. When should you be particularly careful about high winds?
When driving in winter
When driving at night
When going downhill
When emerging from a tunnel
3. Gross vehicle weight (GVW) is:
the total weight of the trailer or trailers.
the total weight of a single vehicle, except its load.
the total weight of a single vehicle including its load.
the total weight of the vehicle axle.
4. The header board, if equipped, should:
not be used in case of a crash or emergency stop.
block the forward movement of any cargo you carry.
never be used for cargo.
can be dangerous.
5. The safety valve installed in the first tank the air compressor pumps air is set to open:
if there is too much pressure.
at 30 psi.
every 15 minutes.
if there is too little pressure.
6. Retarders:
apply their braking power whenever you push on the accelerator.
help prevent accidents by applying extra braking power to the non-drive wheels.
help slow a vehicle and reduce brake wear.
All of the above.
7. When you drive a tractor-trailer combination with ABS, you should:
brake as you always have.
pump the brakes.
always apply the brakes hard.
apply the trailer hand brake whe braking.
8. When going down a steep downgrade, it is important to select a "safe" speed that is not too fast for:
the weather.
the total weight of the vehicle and cargo.
the steepness of the grade.
All of the above.
9. Why should you complete an after-trip inspection report?
So you won't be held responsible for any subsequent damage.
To help the motor carrier know when the vehicle needs repairs.
To prove that you finished your trip.
All of the above.
10. It's very important to distribute the cargo so it is:
as low as possible.
piled up.
as high up as possible.
in the centre of the load.
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MA CDL Practice Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
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