Free South Carolina CDL General Knowledge Practice Test 2023

You are looking for actual practice for your coming CDL test? So you have come to the right place. Our SC General Knowledge Practice Test has the same questions as the real exam which is based on the SC CDL Manual. Our CDL practice test pack covers most of the subject areas on the South Carolina General Knowledge Test such as shifting techniques, railroad crossing safety, drunk driving laws, and much more to make you become a safer driver. In addition, each question has a detailed explanation that will help you understand the concept and answer future questions about it correctly. If you don't get the pass right away, don't worry, you can take this practice test an unlimited number of times to make sure you learn all the questions. Our SC CDL Practice Test will refine your driving knowledge so you can earn your CDL and start driving on the roads. Let’s take our practice test now!

Our CDL practice tests:
Based on 2021 SC commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
SC CDL General Knowledge Test format:
50 questions
40 correct answers to pass
80% passing score
List of questions
1.
To prevent a load from shifting, there should be at least one tie down for every ____ feet of cargo.
2.
The most important thing you can do when dealing with an aggressive driver is:
3.
When driving at more than 40 mph, what is the safe minimum following distance for ideal daytime conditions?
4.
Which of these is NOT something you should do if your headlights are not working properly?
5.
Which of these pieces of emergency equipment should always be carried in your vehicle?
6.
Which of these statements about driving in areas with strong wind is true?
7.
Perception distance is the distance your vehicle travels from the time:
8.
Weight transmitted to the ground by one axle or one set of axles called:
9.
The BAC (Blood Alcohol Concentration) for commercial drivers to be considered intoxicated when driving a commercial vehicle is:
10.
What should be true about other drivers:
11.
When starting a bus on a level surface with good traction there is often no need for:
12.
If the cargo is fully contained in a sided vehicle, what is the minimum requirement for withstanding sideways force?
13.
At what time does a violation occur on this log?
14.
Some general signs that another driver may be distracted include which of the following:
15.
Whenever you double your speed, your vehicle has about how many times of destructive power if it crashes?
16.
What does the 14 hour on duty limit mean?
17.
Using 6 miles per gallon as your fuel mileage and 8 pounds per gallon for the weight of fuel, how much total fuel weight will you burn off in 600 miles?
18.
When is it a good idea to use drugs to help you stay awake while driving?
19.
Which day below contains a violation?
Day 1

Day 2
20.
What is the maximum blood-alcohol concentration allowed for operating a school bus?
21.
Retreaded, recapped, or regrooved tires are allowed on the front wheels of a bus when?
22.
In cargo securement, what is a 'cleat' defined as?
23.
When road lighting is poor or confusing, you should:
24.
Which of these is true about notifying the authorities after an accident occurs?
25.
Which of the following statements about speed management is true?
26.
When securing rows of coils, requirements include all of the following except:
27.
You're loaded heavy with 1/2 tank of fuel onboard. Using the following numbers, where should you move the 5th wheel to get it setup properly?

steer axle: 12,300 pounds
drive axles: 33,100 pounds
Weight transfer: 500 pounds per hole
28.
When securing concrete pipe with a diameter up to 45 inches loaded crosswise as a group,lengthwise tiedowns should be either one 1/2 in chain or wire rope, or:
29.
If you load cargo into the overhang portion of the trailer, what will be the result?
30.
When driving, when is it acceptable to signal other drivers that it is safe to pass?
31.
Three serious traffic violations in a 3-year period will result in a CDL disqualification of:
32.
What is the Federal standard for the weight limit on a single axle?
33.
Good general shifting techniques for going down a long downgrade include:
34.
Brake fade:
35.
If you need to leave the road in a traffic emergency, you should:
36.
Which of the following vehicles will have the longest stopping distance?
37.
When turning quickly in an emergency, which of the following applies:
38.
All of the following are classified as "a drink" and contain the same amount of alcohol except:
39.
You are driving a heavy vehicle. You must exit a highway using an off-ramp that curves downhill. You should:
40.
Which of these items is NOT checked for a pre-trip inspection?
41.
All of the following are good tips to staying fit and ready to drive except:
42.
When driving with ABS, remember:
43.
Which of the following is considered off duty time?
44.
Coming down steep, long, downgrades will require a driver to:
45.
All of the following are true of alcohol except:
46.
Heavy vehicles often move slower than others. Which of these is NOT a good rule to follow while driving a heavy vehicle?
47.
What is the minimum number of tiedowns required through the eye of a metal coil loaded crosswise?
48.
When driving downhill, you should use the service brakes:
49.
When securing concrete pipe up to 45 inches loaded crosswise, tiedowns through the pipe must be:
50.
A bulkhead is used: