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
The most important thing you can do when dealing with an aggressive driver is:
If you are stopped at a roadside rest area and found to have a BAC (Blood Alcohol Concentration) of 0.02 you will:
"According to the driver’s manual, why should you limit the use of your horn?"
What is the best way to prevent brake failure on long downgrades?
You are driving a 40-foot vehicle at 35 mph. The road is dry, and visibility is good. What is the least amount of space you should keep in front of your vehicle to be safe?
When can your logbook be inspected?
What should be true about other drivers:
You are inspecting hydraulic brakes. You should pump the brake pedal three times then apply firm pressure to the pedal for five seconds. If the brakes are working properly, the pedal should:
Which statement is true about extending the 14 hour on duty clock by using the 8 hour sleeper berth provision?
Which of these is correct about emergency or evasive action?
When securing a load of lengthwise longwood logs weighing 42,500 lbs, what is the minimum aggregate WLL required for tiedowns? (rounded up to nearest lb)
You should be prepared to the examiner:
Besides prescription drugs verified by a doctor as safe for driving, what other drugs are acceptable while driving?
All of the following are considered excessive speeding except:
Which of the statements about pre-trip inspection is true?
When securing metal coils with eyes vertical, the angle between tiedown and deck, if possible, should be:
A left-hand turn should end:
Which of the following are not a primary factor affecting weight distribution across the axles?
Which means of securement is prohibited when transporting coils with
the coil eye crosswise on the vehicle?
While driving, ice builds up on your wipers and they no longer clean the windshield. You should:
A tiedown is defined as:
Which of these is true about the use of drugs while driving?
You must keep the papers about hauling hazardous materials:
Cargo is contained when:
In order to drive placarded vehicles, drivers are required to have:
The load carrying area of a truck, trailer, or intermodal container is referred to as the:
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?
A dunnage bag is:
Every time you pull off the expressway to take a break, you use about how much time off your 11-hour driving limit?
A tiedown with a marked WLL of 8,000 lbs directly attached to an article has an actual WLL of:
What is a cab shield?
You are driving a heavy vehicle. You must exit a highway using an off-ramp that curves downhill. You should:
A key principle to remember about loading cargo is to keep the load:
If unsure of the exact location of the center of gravity of your cargo, where would you rather have the center of gravity located if you couldn't get it centered?
A tractor trailer traveling 55 mph will travel how far between when the brain perceives a hazard and stopping?
What is a pallet used for?
A 'hook-lift container' is:
Can state inspectors inspect your truck or bus?
When backing, all of the following are important safety rules:
The basic control skills exam allows for a maximum of how many points scored?
Which of these statements about tires and hot weather driving is true?
What is the correct method of determining what percentage of fuel is distributed between the steer axle and the drive axles?
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?
If you hear on the radio that there is a major snowstorm forecast along your route, will you qualify for the Adverse Driving Conditions Exception?
What violation occurs in the example below?
Day 1
Which of these lights cannot be checked at the same time?
Which of these is the most important thing to remember about emergency braking?
CDL drivers from New York State require the Metal Coils Endorsement when transporting metals coils weighing:
Oil, coolant, charging circuit warning lights should go out:
What kind of extinguisher would you use to fight an electrical fire?