South Carolina 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 two, three or four possible answer choices. Test questions come from the South Carolina 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.
Reading a text message while driving is:
Encouraged
Allowed only if there is no trailer
Prohibited
2.
When driving on packed snow, how much should you reduce your speed?
By about one half or more
By about one-third
By about one-quarter
Vehicles should not be driven on a snowy road.
3.
Aggressive driving is:
Operating a vehicle in a selfish or pushy manner.
Operating a vehicle with a strong regard for other motorists’ safety.
Operating a vehicle in the left lane.
4.
When conducting a check of the engine compartment in a vehicle inspection, which of the following should not be done?
Check engine oil level
Check coolant level in radiator
Drain brake fluid
5.
How is water and compressor oil removed from the bottom of an air storage tank?
The water and oil are siphoned out of the tank.
A drain valve is opened to remove the water and oil from the tank.
The water and oil are removed automatically as the brakes are used.
A sponge is used to soak up the water and oil.
6.
Compared to talking on a cell phone while driving, texting while driving is:
Much safer.
Just as safe.
More dangerous.
7.
When turning, when should the turn signal be canceled?
Before entering the turn
During the turn
After the turn is completed
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