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.
What is the minimum weight of a shipment of paper rolls that would require specific securement requirements?
2.
You must drive through deep or flowing water, you should not:
3.
What violation occurs on the below example?

Day 1



Day 2

4.
On what day and time does a 14 hour rule violation occur?
Day 1

Day 2
5.
Which of these statements about backing a heavy vehicle is true?
6.
What time does a 14 hour rule violation occur?
7.
When can your logbook be inspected?
8.
Is there a 14 hour rule violation on Day 2?
Day 1

Day 2
9.
When starting to move the truck, when is it acceptable to roll backwards?
10.
When you encounter a driver that appears to be distracted, you should:
11.
To test for leaks on hydraulic brake systems:
12.
If your brakes fail on a downgrade, you must first:
13.
When coming down a long, steep downgrade, what should be your primary method of controlling your speed?
14.
The maximum weight limit on a single axle is:
15.
For your safety, when setting out reflective triangles you should:
16.
What is the minimum Working Load Limit for the entire securement system?
17.
You receive a scale ticket and your drive axles are 35,700 and your trailer tandems are 30,600. Based upon a trailer with 4 inch slider rail hole spacings, what is the minimum number of holes you would have to slide the tandems to get the weight legal, and what would the final weights be?
18.
To avoid driving when tired, if at all possible you should schedule your trips:
19.
For safer night time driving, windshields and mirrors should be:
20.
A container chassis vehicle is defined as:
21.
What is the Aggregate WLL of the securement system for a load secured with 7 tiedowns: 3 rated at WLL of 4,000 lbs, 2 at 6,500, and 1 at 8,000?
22.
The 14 hour limit can be extended by:
23.
A chock is defined as:
24.
Which of these do not provide extra gears on some trucks?
25.
What is the minimum WLL required of tiedowns securing loaded intermodal containers on non-chassis vehicles?
26.
Which of these statements about marking a stopped vehicle is true?
27.
In case you have to fight a fire, also aim the extinguisher:
28.
Who must complete a log?
29.
When loading paper rolls with eyes horizontal, which of the following is not a requirement for stacking a second layer?
30.
Controlled braking is:
31.
You must park on a side of a level, straight, four-lane divided highway. Where should you place the reflective triangles?
32.
Which of these is true about hauling hazardous materials?
33.
Which of these statements about braking is true?
34.
Based on the following figures, how much fuel can you legally add while remaining legal on the steer axle?

Load rating of steer tires: 6,150 pounds

Percentage of fuel weight to steer axle: 85%

Steer axle weight limit in states you're travelling: 20,000 pounds

Weight Before Fueling: Steer: 11,500, drives: 33,100, gross: 76,700

35.
You must stop on a hill or curve on a two-lane-two-way road. How far should you place reflective triangles?
36.
What should you do while turning?
37.
Which of the following has the greatest affect on the gross vehicle weight?
38.
Mirror adjustment can only be checked accurately when:
39.
The basic control skills exam allows for a maximum of how many points scored?
40.
To adjust driving space to slippery conditions, all of the following are space considerations except:
41.
Which of the following techniques will not change the weight distribution across your axles?
42.
Which of these statements about engine overheating is true?
43.
A good inspection habit is for the driver to re-inspect the cargo:
44.
Putting too much weight towards the rear may cause all of these except:
45.
Using the following numbers for your calculations, how much weight will come off your drive axles?

Miles per gallon: 6

Miles travelled: 360

Percentage of fuel weight on drive axles: 30%
46.
What can be the result of too much weight on the back of the trailer?
47.
As part of their pre-trip cargo securement inspection, drivers should:
48.
Sliding your 5th wheel will redistribute the weight mainly between which two sets of axles?
49.
If traveling slower than traffic flow on a grade, if legal you should:
50.
Shifting gears on most heavy vehicles using manual transmissions will require: