CDL PRACTICE TEST - GENERAL KNOWLEDGE (SOUTH CAROLINA)

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The CDL general knowledge test is required to be taken by all CDL applicants. The South Carolina CDL test consists of 50 questions. To pass, you must correctly answer at least 40 questions (80%). The general knowledge test covers the contents of the South Carolina CDL Manual. All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Vehicle Inspection Test, Basic Control Skills Test, Road Test. In addition, the Class A CDL test will include questions based on the Combination Vehicles section. Take this CDL practice test now to prepare for the actual SC general knowledge test! To get your CDL, you must pass both the knowledge and skills tests. CDL knowledge tests include: General Knowledge, Passenger Transport, Air Brakes, Combination Vehicles, Hazardous Materials, Tanker Vehicles, Doubles/Triples, School Bus, Firefighter. Depending on what class of license (A, B or C) and endorsements you need, you must take one or more knowledge tests. A special endorsement is also required to drive certain types of vehicles. The following endorsements may be used with a Class A, B or C CDL: HazMat (H), Tank Vehicles (N), Tank Vehicles Transporting Hazardous Materials (X) and Passenger Transport (P). The School Bus endorsement (S) is only available for Class A or B CDL, and the Doubles/Triples endorsement (T) is only available for Class A driver's licenses.
1. Which of the following is true about lanes changes?
When changing lanes you should check your mirros as usual.
Lane changes require more than regular mirror checks.
You should not check yourmirrors before you change lanes.
Lane changes should always be avoided.
2. Things that can distract your attention while you are driving include:
police pulling someone over.
road construction.
sunlight/sunset.
All of the above.
3. What is the minimum number of tie-downs for a 20 foot load?
3
2
4
1
4. To prevent drowsiness before a trip, drivers should:
avoid scheduling trips for the middle of the night.
avoid medications that cause drowsiness.
get adequate sleep.
All of the above.
5. Why should you be in the proper gear before starting down a hill?
it will help the vehicle be more stable while turning.
gravity can cause the speed of your vehicle to increase.
changing gears on a hill is illegal.
it will help you go faster when you reach the bottom of the hill.
6. Placards are:
signs that warn others to stay at least 500 feet away from the vehicle.
signs put on the outside of a vehicle that identify the hazard class of the cargo.
used to warn others when the Gross Vehicle Weight (GVW) exceeds 10,000 pounds.
signs put on the inside of a vehicle that remind the driver of the type of cargo he or she is carrying.
7. When transporting cargo, drivers:
must inspect the securement of the cargo within the first 50 miles of a trip.
must inspect the securement of the cargo within the first 150 miles of a trip.
should not inspect the cargo within the first 50 miles of a trip.
should inspect the securement of the cargo only if they see problems that could cause a crash.
8. How many glasses of wine can you drink without increasing the chances of a crash?
One.
It depends on your weight.
It depends on your age.
None.
9. When loading cargo, keep the load:
to the rear.
on the side away from most traffic.
balanced in the cargo area.
to the front.
10. When a tire fails, you must:
hold the steering wheel firmly.
get out and check all the tires after you have come to a stop.
stay off the brake.
All of the above.
 
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SC CDL Knowledge Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
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