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Oklahoma CDL Permit Test - Class A

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 three possible answer choices. Test questions come from the Oklahoma 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.
You have made error so far
Passing grade —
10 or fewer errors
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1.
A CDL is valid for:
Two years.
Three years.
Four years.
2.
Regrooved tires are:
Allowed only on the front of a bus.
Allowed only on the rear of a bus.
Not allowed anywhere on a bus.
3.
If your vehicle is hydroplaning, you should:
Use the accelerator.
Not use the brakes.
Put the vehicle in a higher gear.
4.
Heights posted at bridges:
Are always accurate.
Are legally binding.
Can be incorrect.
5.
On flat surfaces, wheel chocks:
Can be used to prevent a parked vehicle from moving.
Make it easier for a parked vehicle to roll.
Should only be used on the front driver's side tire.
6.
Radial and bias-ply tires:
Should be used together.
Should be used together on the front of a vehicle.
Should not be used together.
7.
Why should you regularly drain the air tanks?
Because the air gets old and needs to be replaced
Because compressed air contains some water and the water collects in the tanks
To allow for a change in pressure
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