CDL PRACTICE TEST (NM) - GENERAL KNOWLEDGE TEST

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The CDL general knowledge test is required to be taken by all CDL applicants. The New Mexico 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 Mexico 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 NM 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. Excessive use of the service brakes results in overheating. Too much heat can:
cause the brakes apply unevenly.
make the brakes stop working.
cause the brakes to grab.
2. To make sure you always have overhead clearance, you must be aware that ________ may have reduced the clearances since the heights were posted.
water on the road
the weight of the cargo
packed snow
3. When you push the brake pedal down, air brakes work:
after about 15 seconds.
after a short delay.
immediately.
4. While driving at night, use __________ when it is safe and legal to do so.
interior lights
low beams
high beams
5. The distance you will continue to travel, in ideal conditions, before you physically hit the brakes in response to a hazard ahead is called:
Reaction distance
Perception distance
Braking distance
6. Front-end header boards:
block the forward movement of your cargo.
protect you from your cargo in case of a crash.
All of the above.
7. The only way to stop a front-wheel skid is to:
supply more power to the drive wheels.
let the vehicle slow down.
countersteer.
8. Distracted driving may be caused by _________ while driving.
adjusting the radio
reading billboards
All of the above.
9. If you're carrying hazardous materials and are stopped at a truck stop, you should:
leave the shipping papers in the driver’s door pouch or on the driver’s seat.
leave the shipping papers on the dashboard in clear view.
keep the shipping papers with you.
10. Escape ramps:
are used to safely leave the highway.
have been built to stop runaway vehicles on steep downgrades.
can only be used by trucks or passenger vehicles.
 
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CDL Knowledge Test NM

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