Free Missouri 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 MO General Knowledge Practice Test has the same questions as the real exam which is based on the Missouri CDL Book. Our CDL practice test pack covers most of the subject areas on the Missouri 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 Missouri 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 MO commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
MO CDL General Knowledge Test format:
50 questions
40 correct answers to pass
80% passing score
List of questions
How do you correct a drive-wheel acceleration skid?
Which of these is NOT a good thing to do when driving on slippery roads?
Which of these pieces of emergency equipment should always be carried in your vehicle?
What violation occurs on the below example?
Day 1

Day 2
Which of these statements about driving in areas with strong wind is true?
Which of the following can be used as part of the cargo securement system?
You weigh the truck immediately before and after fueling. Based on the following, determine what percentage of the weight goes to each set of axles:

Before fueling:

steer: 10,200, drives: 31,300, gross: 71,700

After fueling:

steer:11,000, drives: 31,500, gross: 72,700

When is it a good idea to use drugs to help you stay awake while driving?
When approaching a railroad crossing, which of these safety precautions applies?
Commercial drivers are allowed to hold CDL's in how many states at the same time?
When you change your duty status, you must document all of the following except:
When you encounter a driver that appears to be distracted, you should:
In cargo securement, what is a 'cleat' defined as?
If your brakes fail on a downgrade, you must first:
Major signs of tire failure could include:
When road lighting is poor or confusing, you should:
Gross Vehicle Weight (GVW) means the following:
In cargo securement, a wedge is defined as:
To prevent rolling, how many points of contact are required, at minimum, for a boulder resting on a rounded or partially rounded side?
Touching or crossing over a boundary line during the driving exam is considered a(n):
What is true about using a heater?
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
You are starting your vehicle in motion from a stop. As you apply power to the drive wheels, they start to spin. You should:
While driving through an intersection, you should:
Backing into a space that is to the right rear of your vehicle is referred to as:
Brake fade:
Which of the following vehicles will have the longest stopping distance?
If you need to leave the road in a traffic emergency, you should:
The road you are driving on becomes very slippery due to glare ice. Which of these is a good thing to do in such a situation?
Which of these statements about brakes is true?
Using 7 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 210 miles?
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

After turning and getting up to speed:
An ABS light that comes on or stays on while driving indicates:
If you must drive in fog, some considerations include which of the following:
In Oregon, the maximum weight on the steer axle is listed as 600 pounds per inch of tire tread width up to 20,000 pounds. Your steer tires have a load rating of 6,150 pounds each and are 10 inches wide. What is the maximum legal weight your steer axle can carry in Oregon?
If you do not have a CB-radio, what procedure should you follow on an accident scene?
When parked on the side of a two-lane road carrying traffic in both directions, place warning devices:
Mirror adjustment can only be checked accurately when:
What is the best way to determine what percentage of the weight of fuel will go to each set of axles?
What is the maximum angle recommended for tiedowns securing cement pipe loaded crosswise, relative to the deck?
When securing flattened or crushed cars on a vehicle with containment on 2 sides, how many tiedowns, at minimum, are required?
When securing a single metal coil with eye vertical, tiedowns must be arranged according the all of the following except:
Convex (curved) mirrors:
You weigh the truck immediately before and after fueling. Based on the following, determine what percentage of the weight goes to each set of axles.

Before fueling:

steer: 11,450, drives: 33,100, gross: 76,700

After fueling:

steer:11,850, drives: 33,300, gross: 77,300

To avoid being blinded by glare when driving at night, drivers should:
A Class A CDL is required to drive a combination vehicle of over 26,001 lbs towing a vehicle weighing:
If you are able to exert 200 pounds of force against an object but you are only exerting 50 pounds of force to do so, what method are you applying to make this happen?
When securing concrete pipe over 45 inches loaded crosswise, which direction must the tiedowns on the front half of the load run?
Within the requirements for concrete pipe, which of these requires specific securement methods?