Minnesota CDL General Knowledge Test (MN) 5

4.8 out of 5 (119 votes)
80% Passing score
50 Questions
10 Mistakes allowed
If you're gearing up for the Minnesota CDL General Knowledge Test in 2026, you've landed at the right spot. This fifth CDL practice test is a crucial step in your preparation, designed to mirror the actual DMV test closely. With a set of 50 carefully curated sample CDL test questions, this general knowledge practice test challenges and prepares you for the real deal. To pass, you must correctly answer at least 40 questions, a target that aligns with the DMV's expectations. One of the standout features of our Minnesota CDL general knowledge practice test is its constant evolution. We understand the importance of staying current, especially in a field as dynamic as driving regulations. That's why our content is regularly updated, incorporating the latest laws and guidelines as of 2026. This ensures that you're not just preparing to pass the Minnesota CDL permit test but also becoming well-versed in the most recent driving standards. Our general knowledge CDL practice test adopts the same format as the actual 2026 DMV written permit test: a mix of multiple-choice and true/false questions. This design is not just about testing your knowledge; it's about honing your test-taking skills. By practicing with us, you'll learn how to navigate through tricky Minnesota CDL questions, identify distractors, and confidently select the correct answers. It's a comprehensive approach that goes beyond rote learning. Another aspect that sets our online Minnesota CDL general knowledge practice test apart is its integration of real-life scenarios. This isn't just about memorizing facts; it's about applying them. By encountering situations that drivers face daily, you'll learn how theoretical knowledge translates into practical decision-making. It's an invaluable part of your learning that prepares you for real-world challenges, making you not just a test-ready but a road-ready driver. So, whether you're a first-time test-taker or looking to refresh your knowledge, this Minnesota CDL practice test is an indispensable tool in your arsenal in 2026. Dive into it, and emerge more knowledgeable, more prepared, and more confident!
FREE CDL Practice Test App
Pass your Minnesota CDL General Knowledge test with the NextDoorDriving app. Real questions and answers—100% free and ad-free.
Download on the App Store

Sample Minnesota CDL Test Questions - General Knowledge

Question 1

What is the main safety benefit of using a helper while backing?

  1. A The helper can monitor areas hidden from the driver
  2. B The helper can select the proper reverse gear
  3. C The helper eliminates the need to use mirrors
  4. D The helper can steer while the driver controls the pedals

Correct answer: A – The helper can monitor areas hidden from the driver

The Minnesota CDL manual recommends a helper because some backing blind spots cannot be seen by the driver. The helper should stand near the rear where the driver can see the helper and should use agreed-upon hand signals. If the helper is no longer visible, the driver should stop backing.

Source: Minnesota Commercial Driver’s License Manual (March 2025) — § 2.2.2, “Backing Safely—Use a Helper”

Question 2

What is the minimum tread depth for a tire on the front wheels of a commercial truck or truck tractor?

  1. A 2/32 inch
  2. B 4/32 inch
  3. C 6/32 inch
  4. D 1/4 inch

Correct answer: B – 4/32 inch

Federal equipment rules require at least 4/32 inch of tread in a major groove on tires mounted on the front wheels of a bus, truck, or truck tractor. Measurements are not taken at tie bars, humps, or fillets. Other tires generally require at least 2/32 inch.

Source: Minnesota Commercial Driver’s License Manual (March 2025) — § 2.1.3, “What to Look For—Tire Problems”, 49 CFR § 393.75(b), (c) – Tires

Question 3

Which description best matches black ice?

  1. A A thin, nearly transparent ice layer through which the pavement remains visible
  2. B A pile of melting ice along the shoulder
  3. C Dark snow left behind by passing vehicles
  4. D Thick ice that is easy to recognize from a distance

Correct answer: A – A thin, nearly transparent ice layer through which the pavement remains visible

Black ice is a thin, clear layer that allows the road surface underneath to remain visible. The Minnesota CDL manual warns that it can make pavement look wet rather than frozen. When temperatures are below freezing and the road appears wet, watch carefully for black ice and reduced traction.

Source: Minnesota Commercial Driver’s License Manual (March 2025) — § 2.6.2, “Matching Speed to the Road Surface—Identifying Slippery Surfaces”

Question 4

How far ahead should a commercial driver generally scan while driving?

  1. A About one football field at every speed
  2. B About two football fields at every speed
  3. C 5 to 10 seconds ahead
  4. D At least 12 to 15 seconds ahead

Correct answer: D – At least 12 to 15 seconds ahead

Good commercial drivers look at least 12 to 15 seconds ahead, based on the distance the vehicle will travel during that time. This is approximately one block at lower speeds and one-quarter mile on a highway. Continue shifting attention between distant conditions and hazards closer to the vehicle.

Source: Minnesota Commercial Driver’s License Manual (March 2025) — § 2.4.1, “Seeing Ahead—How Far Ahead to Look”

Question 5

What happens when a vehicle hydroplanes?

  1. A The tires lose contact with the road and have little or no traction
  2. B The steering wheel locks while the tires retain full traction
  3. C The brakes overheat because the pavement is dry
  4. D The suspension raises the vehicle above standing water

Correct answer: A – The tires lose contact with the road and have little or no traction

During hydroplaning, water or slush prevents the tires from maintaining proper contact with the road, leaving little or no traction. Steering and braking may become ineffective. Hydroplaning can occur at speeds as low as 30 mph when enough water is present, especially with low tire pressure or worn tread.

Source: Minnesota Commercial Driver’s License Manual (March 2025) — § 2.6.2, “Matching Speed to the Road Surface—Hydroplaning”

Question 6

Which items should be checked when inspecting a vehicle’s battery area?

  1. A The battery is secure, if visible
  2. B Connections are tight and show no excessive corrosion
  3. C The battery box, cover, or door is secure
  4. D All of the above

Correct answer: D – All of the above

A battery inspection includes checking that visible batteries are secure and that connections are tight without excessive corrosion. Electrical cables and lines should also be secure and free from cracks or wear. The battery box and its cover or door must be properly secured.

Source: Minnesota Commercial Driver’s License Manual (March 2025) — § 11, “Battery”

More Minnesota CDL Practice Tests
Other CDL Endorsements