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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. To reduce the chance of rollover, you should:
distributed the cargo as low as possible inside the trailer.
put the lightest parts of the cargo under the heaviest parts.
place the cargo as high as possible inside the trailer.
None of the above.
2. ________ is the distance your vehicle will travel, in ideal conditions, while you are braking.
Braking distance
Perception distance
Stopping distance
Reaction distance
3. If you are driving a vehicle with manual transmission that requires double clutching to change gears, the first step of the basic method for shifting up is to:
Pump the brakes and release the clutch.
Release the clutch and press the accelerator at the same time.
Push in the clutch and shift into a higher gear at the same time.
Release the accelerator, push in the clutch and shift to neutral at the same time.
4. During freezing weather, which area is most likely to be slippery after it rains?
Roads that look wet.
Shaded areas.
All of the above.
5. Driving dry bulk tanks requires special care. Why?
The load can shift.
Their weight and size can make it more difficult to stop quickly.
They have a high center of gravity.
All of the above.
6. To prevent drowsiness before a trip, drivers should:
prepare the route carefully, including stopping points.
drive at night.
drive alone.
get at least 5 hours of sleep.
7. If you are confronted by an aggressive driver, you should:
avoid eye contact.
try to move away safely.
remain calm and relaxed.
All of the above.
8. When the load on a vehicle extends more than 4 feet beyond the rear of the body, a _______ must be placed at the end of the load.
blue flag
warning sign
red flag
yellow sign
9. You should downshift in advance before:
crossing a bridge.
starting down a hill or entering a curve.
entering the highway.
entering a tunnel.
10. Empty trucks:
require greater stopping distances.
have less traction.
are higher than loaded trucks.
All of the above.
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MD CDL Knowledge Test

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