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.
Vehicle skids are often caused by:
2.
Which of these is not part of the pre-trip inspection of the engine compartment?
3.
When making a left turn, you should do which of the following?
4.
As a way to maximize all time available, you should always do the following:
5.
When driving in very hot weather, it is critically important to carefully inspect:
6.
What is a cab shield?
7.
When should drivers inspect their vehicles?
8.
In case of tire failure, you should do all of the following except:
9.
What violations occurred on Day 2 of this example?
Day 1

Day 2
10.
A tank vehicle endorsement is required to drive tank vehicles with a combined capacity of:
11.
Which of these statements about drugs is true?
12.
The distance that you should look ahead of your vehicle while driving amounts to about ___ miles at normal highway speed.
13.
What is the minimum amount of rearward force that a cargo securement system must withstand?
14.
Space to the ____ your vehicle is most important to manage.
15.
Medicine used to treat the common cold:
16.
When hauling livestock, to prevent them from moving around too much and causing a dangerous situation you would use:
17.
All of the following should be part of the engine compartment check except:
18.
Any operator who refuses to submit to drug or alcohol testing, or who tests in excess of the legal limits, will be disqualified for a minimum of:
19.
You must keep the papers about hauling hazardous materials:
20.
What is the minimum securement requirement for paper rolls with eyes vertical with a width between 1.25 and 1.76 its diameter?
21.
Which of the following headlight issues can be hazardous?
22.
Using controlled braking, brakes are applied as hard as possible:
23.
Which of these statements about cargo loading is true?
24.
When confronted with an aggressive driver, you should do all of the following except:
25.
The tread depth on front steering wheel tires should be:
26.
What should you do if a car coming toward you at night keeps its high beams on?
27.
In general, the best braking technique to use in maintaining a safe speed when driving on a downgrade is:
28.
If a CDL-holder's privilege to drive non-CMV's is revoked or suspended more than once for alcohol, felony, or controlled substance violations, the CDL will be disqualified for:
29.
What is the minimum aggregate WLL of all tiedowns in a group of concrete pipe?
30.
Specific examples of vehicles which drivers should pay close attention to as possible hazards include:
31.
Under the adverse driving conditions exception, how many additional hours can you drive?
32.
An ABS light that comes on or stays on while driving indicates:
33.
If you do not have a CB-radio, what procedure should you follow on an accident scene?
34.
Some common causes of vehicle fires are spilled fuel, improper fueling, under-inflated tires, and:
35.
When securing metal coils, it is acceptable to use nailed blocking or cleats as the sole means to secure:
36.
A DUI conviction for a CDL-holder will result in disqualification for a minimum of:
37.
If you have a heavy load that is slowing you down on an upgrade you should:
38.
Given that general cargo securement requires a WLL of at least 50% of cargo weight, how many 11mm wire rope tiedowns would be required for a load of 26,000 lbs?
39.
Requirements for securing heavy vehicles, equipment, and machinery apply at what weight?
40.
What is bell pipe concrete?
41.
If a straight vehicle (not trailer or articulation) goes into front-wheel skid, it will:
42.
A driver will generally be required to have a DOT medical card in order to drive which of the following:
43.
You should always turn on your emergency four-way flashers when you:
44.
How much space in front of you is needed while driving on a highway?
45.
During the vehicle inspection, checking of ___ will NOT prevent a fire.
46.
When securing a single metal coil with eyes vertical:
47.
Your trailer has a 6 inch hole spacing in the tandem slider rail and your trailer tandems are 900 pounds overweight. What is the minimum number of holes you will have to slide the tandems to get the tandems within legal limits?
48.
Option #1 for securing coils transported with eyes lengthwise includes:
49.
Products that pose a risk to health, safety
and property during transportation are called:
50.
If you're able to arrive early for a delivery, you should: