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The CDL general knowledge test is required to be taken by all CDL applicants. The Maryland 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 Maryland 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 MD 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. In order to protect yourself and others, you must be aware that children may do something hazardous because:
they tend to act quickly without checking traffic.
they don't have a driving license.
they are often found in school zones.
they tend to like trucks.
2. The first thing to do at an accident scene is to:
keep another accident from happening in the same spot.
file an accident report.
help any injured parties.
call for assistance.
3. When driving at lower speeds, you should look at least ______ ahead.
3 blocks
1 block
2 blocks
None of the above.
4. When backing, you should:
back quickly.
back and turn toward the right side whenever possible.
use the mirrors on both sides.
only use mirror on the driver's side.
5. As long as the engine is not overheated, it is safe to remove the radiator cap.
True, as long as you are wearing gloves.
True, unless you can touch the radiator cap with your bare hand.
6. Anti-lock brakes:
increase your stopping distance.
keep your brakes from locking up when you brake hard.
reduce the perception distance.
help you stop faster.
7. Excessive use of the service brakes results in overheating. Too much heat can:
make the brakes stop working.
cause the brakes to grab.
cause the brakes apply unevenly.
cause the brakes to squeak.
8. If you must stop on a one-way or divided highway, place your warning devices:
10 feet, 50 feet, and 150 feet toward the approaching traffic.
50 feet, 100 feet, and 150 feet toward the approaching traffic.
10 feet, 100 feet, and 200 feet toward the approaching traffic.
100 feet, 200 feet, and 300 feet toward the approaching traffic.
9. The wheels of a large combination vehicle are more likely to lock up when:
the trailer has new tires.
the vehicle is heavily loaded.
you are traveling in very hot weather.
the vehicle is lightly loaded.
10. If you let air out of hot tires:
the tires will cool off much sooner.
as the tire cools, the air pressure will be too low.
air pressure will increases, causing the tires to blow out.
None of the above.
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Number of questions: 50
Correct answers to pass:40
Passing score:80%
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