South Carolina 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 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), 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.
One way to prevent hydroplaning on wet road surfaces is to:
Ensure that your tires have good tread depth.
Under-inflate your tires.
Drive faster than usual.
2.
Over-the-counter medication:
Poses no safety risks to a driver.
Is not referenced by any driving under the influence law.
Cannot impair a person.
Can affect a person’s ability to drive safely.
3.
In slippery conditions, a driver should:
Make turns as quickly as possible
Refrain from passing slower vehicles
Stop quickly
4.
What is a danger of rolling backward when you start to accelerate?
The transmission may be damaged
The truck is not made to go backwards
You may hit a vehicle behind you
You may lose your position in traffic
5.
When starting the vehicle during the pre-trip inspection, the coolant temperature should:
Decrease.
Rise slowly.
Hold steady.
Jump quickly.
6.
When taking the on-road driving test, you must do all of the following, except:
Wear your safety belt.
Obey all traffic signs.
Complete the test without an accident.
Demonstrate that you can use your cell phone while driving.
7.
Pre-trip inspections should be done:
Differently each time in order to place emphasis on different items.
The same way each time to prevent you from forgetting anything.
Once in a while.
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