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Delaware CDL Permit Test - Knowledge Test Class B

Number of questions: 50
Passing score: 40
Directions: This license is required for driving a single vehicle with a GVWR of more than 26,001 pounds, and a trailer not to exceed 10,000 pounds gross vehicle weight rating, or a vehicle designed to transport 24 or more people (including the driver). To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has three or four possible answer choices. Test questions come from the State of Delaware Commercial Driver License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving.. Endorsements that may be used with a Class B CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.
You have made error so far
Passing grade —
10 or fewer errors
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1.
If unable to tell if the road is becoming icy and slippery, a driver:
Should try guessing.
May open their window and feel the front of the side mirror for ice.
Should look at the road closely.
2.
Which of the following is not acceptable emergency equipment?
Three red reflective triangles
Six fuses
Three liquid burning flares
Four yellow squares
3.
When inspecting your brakes, a slack adjuster should move ____ from where it is attached to the push rod.
At least three inches
More than two inches
Up to five inches
No more than one inch
4.
Dry bulk tanks require special care because:
They have low centers of gravity.
They have high centers of gravity.
Loads are usually stable.
They are usually overloaded.
5.
A vehicle that is smaller than your vehicle:
Will usually be able to stop faster than your vehicle.
Will usually take more time to stop than your vehicle.
Will take about the same amount of time to stop as your vehicle.
6.
Applying the brake pedal causes air pressure to activate an electric switch and:
Turn off the brake lights.
Turn on the low pressure warning light.
Turn on the brake lights.
Turn off the low pressure warning light.
7.
Air tank drains:
Should not be used in cold weather.
Are helpful to remove water and oil from the air tanks.
Are used to move air to the brakes.
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