Free North 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 NC General Knowledge Practice Test has the same questions as the real exam which is based on the NC CDL Manual. Our CDL practice test pack covers most of the subject areas on the North 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 NC CDL 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 NC commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
NC CDL General Knowledge Test format:
50 questions
40 correct answers to pass
80% passing score
List of questions
Vehicle skids are often caused by:
Which of these statements about stopping distance and speed is true?
You are driving on a clear night. You must dim your headlights from high to low. You should adjust your speed so that you can stop within:
Sometimes you need to leave a road to avoid a hazard or emergency. When you do, you should keep in mind, that:
"According to the driver’s manual, why should you limit the use of your horn?"
High beams should be:
Which of these is a good thing to do when driving at night?
You are checking your steering and exhaust system in a pre-trip inspection. Which of these problems, if found, should be fixed before the vehicle is driven?
Some general signs that another driver may be distracted include which of the following:
There are three maximum limits you must follow at all times. Those limits are:
All lights and reflectors should be operating properly, clean, and:
What is the maximum blood-alcohol concentration allowed for operating a school bus?
What is the aggregate WLL of one 7/15 inch Grade 43 chain, and three 5/16 inch Grade 70 chains?
You should be prepared to the examiner:
What is a 34 hour restart?
If your vehicle catches fire while you are driving, you should:
Why should drivers always be looking for hazards?
The distance that you should look ahead of your vehicle while driving amounts to about ___ miles at normal highway speed.
A device placed between the deck of a vehicle and car or between articles of cargo, intended to provide greater friction than exists naturally between these surfaces is:
Which of these is true about the use of drugs while driving?
The maximum distance from the rear allowed for attaching mechanisms used to secure roll-on/roll-off containers is:
You must keep the papers about hauling hazardous materials:
What is the maximum weight that can be secured by a tiedown with a marked WLL of 5,000 lbs?
A school bus endorsement is required in order to transport:
Cargo and securement devices should be checked within how many miles after starting a trip?
What is the 8 day / 70 hour on duty limit?
Using the following numbers for your calculations, how much weight will come off your steer axle?

Miles per gallon: 7
Miles travelled: 280
Percenatage of fuel weight on steer axle: 80%
Passing on the wrong side of the road, passing in a school zone, and driving the wrong way on a one-way street are all specific examples of:
You receive a scale ticket and your drive axles are 32,200 and your trailer tandems are 35,100. Based upon the two most common tandem slider rail hole spacings, what is the minimum number of holes you would have to slide the tandems to get the weight legal, and in which direction?
Is the below example a completed 34 hour restart?
Day 1

Day 2
When loading paper rolls with eyes horizontal, which of the following is not a requirement for stacking a second layer?
Which of these actions are NOT recommended for a left turn?
Who is responsible for inspecting securing devices and cargo within the first 50 miles?
To protect the area after an accident, steps you should take include:
Specific examples of vehicles which drivers should pay close attention to as possible hazards include:
What does GCWR stand for?
What are the two primary laws governing the placement of the tandems?
Can state inspectors inspect your truck or bus?
A DUI conviction for a CDL-holder will result in disqualification for a minimum of:
Vehicles should be equipped with all of the following emergency equipment except:
Cargo must satisfy one of the following securement conditions except:
Which of the following techniques will not change the weight distribution across your axles?
When checking the general condition of the vehicle, which of the following should be specifically addressed?
A device placed on the exposed edge of an article to distribute tiedown forces over a larger area of cargo than the tiedown itself, to protect the tie-down and/or cargo from damage, and to allow the tiedown to slide freely when being tensioned is a:
How much force is the securement system required to withstand in terms of cargo weight?
Which day below contains a 30 minute break violation?
Day 1

Day 2
How long does it typically take a tractor-trailer to cross a single set of railroad tracks?
Oil, coolant, charging circuit warning lights should go out:
When driving downhill, you should use the service brakes:
Shifting gears on most heavy vehicles using manual transmissions will require: