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The tires lose contact with the road.
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The tires have extra traction.
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The vehicle is easier to control.
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The vehicle becomes heavier.
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Massachusetts CDL Permit Test - Knowledge Test Class A
(From the 2021 Massachusetts CDL driver handbook)
| Number of questions: | 50 |
| Passing score: | 40 |
Directions:
This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has four possible answer choices. Test questions come from the Commercial Driver License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination, Doubles and Hazardous Materials. Endorsements that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.
Passing grade —
10 or fewer errors
advertising
1.
What happens when a vehicle hydroplanes?
2.
To stop in a vehicle that uses air brakes, the driver should:
|
Pull the air brake lever.
|
|
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Engage the brake lever.
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Push the brake pedal down.
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Pull the brake pedal up.
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3.
Brake fade is a result of:
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Exposure to sunlight.
|
|
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Exposure to moisture.
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|
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Excessive use.
|
|
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Not using the brakes enough.
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4.
If a tire fails, the driver should:
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Keep one hand on the steering wheel and use their other hand to wave to other drivers.
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|
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Stomp on the brakes.
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Not use the brakes.
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Accelerate.
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5.
To ensure applicants only have one license:
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You will be asked to sign a form.
|
|
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States share a database with drivers' information.
|
|
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Your wallet will be searched.
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|
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6.
When inspecting your brakes, a slack adjuster should move ____ from where it is attached to the push rod.
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At least three inches
|
|
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More than two inches
|
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Up to five inches
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No more than one inch
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7.
If a traffic light has been green for a long time:
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It will probably stay green as you approach.
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It is likely broken.
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It is likely that the light will soon change to yellow.
|
|
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It is likely the light will skip yellow and change from green to red.
|
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