Missouri General Knowledge CDL Prep Test (MO) 4

4.9 out of 5 (59 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Ready to boost your skills for the Missouri general knowledge CDL test? You're in the right place! Our fourth CDL practice test is here to help you sharpen your knowledge and prepare effectively. With 20 thoughtfully crafted sample permit test questions, this general knowledge practice test mirrors the real DMV challenge. But here's the catch - you need to get at least 16 questions right to pass. Don't worry though, this isn't a one-shot deal. You can retake this DMV practice test as many times as you need, ensuring you're fully prepped for the actual exam. Our CDL practice tests aren't just effective; they're also super convenient. Available online, you can access them anytime, anywhere - be it on your desktop at home or through our mobile apps on the go. This accessibility means you can practice whenever it suits you, fitting study time into your busy schedule. But that's not all. We know everyone's learning style is different. That's why our CDL practice sessions are customizable. You can focus on the areas you find tricky, repeating questions as needed to reinforce your understanding. This flexibility means you're not just practicing; you're practicing smart. And the best part? It's a totally stress-free learning environment. Unlike the real DMV general knowledge test, our Missouri CDL practice tests let you learn at your own pace, without the pressure of having to pass on the first go. This relaxed setting is perfect for building confidence and knowledge, ensuring when the big day comes, you're ready and raring to go. So, if you're aiming to ace that Missouri CDL test in 2026, our fourth permit practice test is your ideal study buddy! Dive in and start practicing today - your Missouri CDL success story starts here!
FREE CDL Practice Test App
Pass your Missouri CDL General Knowledge test with the NextDoorDriving app. Real questions and answers—100% free and ad-free.
Download on the App Store

Sample Missouri CDL Test Questions - General Knowledge

Question 1

What should you do if another vehicle is following your commercial vehicle too closely?

  1. A Increase the following distance ahead of your vehicle
  2. B Flash the brake lights repeatedly
  3. C Increase your speed
  4. D Wave the other driver around immediately

Correct answer: A – Increase the following distance ahead of your vehicle

Increase the space between your vehicle and the traffic ahead. The additional room reduces the likelihood that you will need to brake or change direction suddenly and may make it easier for the tailgater to pass. Do not speed up or use brake-light tricks to discourage the other driver.

Source: Missouri Commercial Driver License Manual — § 2.7.2, “Space Behind”

Question 2

In Missouri, a vertical rectangular traffic sign is most commonly associated with which sign category?

Many _____________ are this shape.
  1. A Parking-area guide signs
  2. B Regulatory signs
  3. C Warning signs
  4. D Directional guide signs

Correct answer: B – Regulatory signs

A vertical rectangle is the standard shape associated with regulatory signs. These signs communicate traffic rules involving speed, turns, lane use, parking, and similar requirements. Warning signs are usually diamonds, while horizontal rectangles generally provide guidance or directional information.

Source: Missouri Driver Guide — Ch. 7, “Sign Shapes”, Missouri Driver Guide — Ch. 7, “Regulatory Signs”

Question 3

While scanning ahead in a commercial vehicle, which two broad categories should receive your attention?

  1. A Traffic activity and roadway conditions
  2. B Only vehicles directly ahead and traffic signals
  3. C Only disabled vehicles and debris
  4. D Curves and potholes only

Correct answer: A – Traffic activity and roadway conditions

Look ahead for traffic movements, including vehicles entering the highway, turning, moving into your lane, or showing brake lights. Also watch roadway conditions that may require a change in speed or position. Detecting these conditions early gives you more room to respond without sudden braking or lane changes.

Source: Missouri Commercial Driver License Manual — § 2.4.1, “Seeing Ahead”

Question 4

On a Missouri roadway, what does a sign reading ROAD WORK 1000 FT indicate?

This sign warns drivers that _____________.
  1. A The work zone extends for exactly 1,000 feet
  2. B Road work is approximately 1,000 feet ahead
  3. C The roadway ends in 1,000 feet
  4. D A reduced speed is mandatory for the next 1,000 feet

Correct answer: B – Road work is approximately 1,000 feet ahead

The distance legend provides advance warning that the road-work area is approximately 1,000 feet ahead. It does not state that the work zone is 1,000 feet long or that the road will end. The sign is also not, by itself, a regulatory speed-limit sign.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways, 11th ed., Rev. 1 — Part 6, W20-1, “Road Work (with distance)”

Question 5

A Missouri CDL driver is carrying Division 1.1, 1.2, or 1.3 explosives. For the exception allowing the vehicle to be left with a lawful bailee, which listed location can qualify?

  1. A The shipper's property
  2. B The motor carrier's property
  3. C The consignee's property
  4. D Any of these locations

Correct answer: D – Any of these locations

Federal regulations generally require a vehicle containing Division 1.1, 1.2, or 1.3 explosives to be attended by the driver or a qualified carrier representative. An exception can apply on carrier, shipper, or consignee property when the lawful bailee knows the cargo's nature, has emergency instructions, and can keep the vehicle in unobstructed view. Each listed property can qualify, but location alone is not sufficient.

Source: Missouri Commercial Driver License Manual — § 9.6.1, “Parking with Division 1.1, 1.2, or 1.3 Explosives”, 49 CFR § 397.5(a)–(d) — Attendance and Surveillance of Motor Vehicles

Question 6

Which statement gives the safest general rule for backing a commercial vehicle?

  1. A Use only the driver's-side mirror while backing
  2. B Avoid backing whenever practical
  3. C A helper should stand where the driver cannot see them
  4. D Backing is generally safer than driving forward

Correct answer: B – Avoid backing whenever practical

Because a driver cannot see everything behind a commercial vehicle, backing is hazardous and should be avoided when practical. When parking, choose a position that allows you to pull forward when leaving. If backing is necessary, inspect the path, back slowly, use both mirrors, and agree on hand signals with any helper.

Source: Missouri Commercial Driver License Manual — § 2.2.4, “Backing Safely”

More Missouri CDL Practice Tests
Other CDL Endorsements