Free South Carolina CDL General Knowledge Practice Test 2022

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 2022 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.
The center of gravity of a load:
2.
Which of these statements about managing space to the sides is true?
3.
All of the following are requirements for dividing vehicles over 33ft except:
4.
Which of these statements about alcohol is NOT true?
5.
What is the best way to prevent brake failure on long downgrades?
6.
Which of these statements is true?
7.
Which statement is true about extending the 14 hour on duty clock by using the 8 hour sleeper berth provision?
8.
If you have to make a vehicle inspection report you must sign it
9.
To stop a drive-wheel skid, you should:
10.
You are driving a vehicle that could be driven safely at 55 mph on an open road. But traffic is heavy and other vehicles drive at the speed of 35 mph, though the speed limit is 55 mph. The safest speed for your vehicle is more likely to be:
11.
Overloading can have all of the following effects except:
12.
Drivers should be aware that convex mirrors will make reflections look:
13.
In mountain driving you will have to use a lower gear to drive safely on a grade. Which of these does NOT affect your choice of gear?
14.
How many knots are acceptable in a properly working tiedown?
15.
Which of the following is considered on duty time
16.
Which of these statements about downshifting is true?
17.
A securement system must be capable of resisting how much lateral (side-to-side) force, at minimum?
18.
When starting in slippery conditions, you should:
19.
The load carrying area of a truck, trailer, or intermodal container is referred to as the:
20.
Your vehicle is in a traffic emergency and may collide with another vehicle if you do not take action. Which of these is a good rule to remember at such a time?
21.
What is a reusable, transportable enclosure that is especially designed with integral locking devices that secure it to a container chassis trailer to facilitate the efficient and bulk shipping and transfer of goods by, or between various modes of transport, such as highway, rail, sea, and air.?
22.
In cargo securement, the deck is:
23.
Which violations have occurred in the below example?
Day 1

Day 2
24.
A placarded vehicle must have how many identical placards?
25.
Which of these actions are NOT recommended for a left turn?
26.
When driving at night you should use your high beams when oncoming traffic is not within ____ feet?
27.
Why does vehicle speed naturally increase on a downgrade?
28.
Drivers of trucks and tractor-trailers with cargo must check that the cargo is well secured within the first ___ miles of the trip.
29.
After starting the engine:
30.
Ways that drinking alcohol can affect the brain include:
31.
What is the only acceptable cure for driver fatigue?
32.
Based on the following figures, how much fuel can you legally add while remaining legal on the drive axles?

Percentage of fuel weight to drive axles: 30%

Weight Before Fueling: Steer: 11,275, drives: 33,750, gross: 77,220

33.
Under normal circumstances, what is the maximum allowed width for commercial vehicles?
34.
A tractor trailer traveling 55 mph will travel how far between when the brain perceives a hazard and stopping?
35.
Make sure that splash guards are properly fastened, and not:
36.
Which of these is true about radiator shutters and the winter-front during winter driving?
37.
Overall length limit on vehicles transporting machinery, poles, or structural objects is:
38.
If loading and securing paper rolls on a second layer:
39.
Which of these is NOT a danger of a rough acceleration?
40.
Water should never be used to put out a gasoline fire, and also what other kind of fire?
41.
If you were instructed to 'tarp' a load, what would you be using?
42.
What is the maximum legal weight for the drive axles or trailer tandems?
43.
How many reflective triangles are required to be kept as part of a trucks emergency equipment?
44.
HOS regulations were designed to do all of the following except:
45.
To avoid being blinded by glare when driving at night, drivers should:
46.
Indirect tiedowns create what direction of force?
47.
There will be times when you must take a minimum of a 30 minute break off duty before performing which of the following tasks?
48.
The purpose of hazmat rules includes all of these except:
49.
What kind of extinguisher would you use to fight an electrical fire?
50.
On combination vehicles longer than 20 feet or wider than 80 inches, amber or yellow reflectors must be installed: