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Oklahoma CDL Permit 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 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), 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.
When backing a truck, you should:
Only use the side mirrors on the driver’s side.
Use both side mirrors.
Only use the side mirrors on the passenger's side.
2.
A CMV should:
Not have a fire extinguisher, unless it is being used to transport hazardous materials.
Not have a fire extinguisher, unless it will be traveling through remote areas.
Have a fire extinguisher and other emergency equipment.
3.
Which of the following is not a cause of hydraulic brake failure?
Loss of hydraulic pressure
Brake fade on long hills
Downshifting
4.
If taking the driving test and the route does not include a railroad crossing, you:
Will not have to do anything related to a crossing.
May have to explain how you would cross railroad tracks.
Will have to take the test again on a route that does include a railroad crossing.
5.
When driving under wet conditions, a lack of spray coming from the tires of other vehicles indicates that:
Ice has formed on the road.
The pavement is dry.
The spray is caught on the underside of the vehicle.
6.
Without engine oil:
A vehicle will get better gas mileage.
An engine can be destroyed quickly.
The ABS won’t work properly.
7.
An Anti-Lock Braking System (ABS):
Is not available for most trucks.
Is not helpful in most situations.
Is required on newer trucks.
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