Montana CDL Practice Test Questions and Answers (MT) 7

5 out of 5 (36 votes)
80% Passing score
50 Questions
10 Mistakes allowed
We are thrilled to introduce the seventh installment in our series of CDL (Commercial Driver's License) practice tests. This particular test is designed to rigorously prepare you for the real deal - the Montana CDL General Knowledge Exam. It features 50 meticulously crafted Montana CDL test questions and answers that cover a broad range of topics essential for any commercial driver. To pass, you'll need to correctly answer at least 40 questions, a standard that mirrors the actual exam's requirements. One of the unique aspects of our CDL practice test is its unwavering consistency. Each time you take it, you'll encounter the same set of Montana CDL permit test questions. This design is intentional, allowing you to hone your skills on specific areas and monitor your progress over time. The DMV practice test covers critical areas such as road signs, rules of the road, traffic signals, and pavement markings. These DMV test questions are not just theoretical; many are framed within real-life driving scenarios, challenging you to apply your knowledge in practical, everyday driving situations. This approach helps bridge the gap between what you learn and what you'll experience on the road. Moreover, we understand the importance of staying current. That's why our content, updated for 2026, reflects the latest driving laws and regulations. This ensures that you're not just preparing for a written permit test - you're preparing for the road ahead as a responsible commercial driver. The structure and content of our Montana CDL practice test closely resemble the actual CDL written permit test. This similarity is crucial in helping you familiarize yourself with the exam's format, reducing surprises and boosting your confidence on test day. For those moments when you're stumped by a question, don't worry. Our CDL practice test includes integrated study aids to assist you. These aids are designed to provide additional information and context, empowering you to make educated guesses and learn in the process. So, get ready to sharpen your skills and knowledge for the 2026 Montana CDL permit test with our comprehensive practice exam. Your path to becoming a skilled commercial driver starts here!
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Sample Montana CDL Test Questions - General Knowledge

Question 1

Before backing with a helper, which hand signal must both people clearly agree upon?

  1. A Stop
  2. B Accelerate
  3. C Turn left
  4. D Turn right

Correct answer: A – Stop

Before backing begins, the driver and helper should establish hand signals that both understand, including a clear signal for stop. The helper should remain near the rear where the driver can see them. If the helper disappears from view, the driver should stop rather than continue backing without guidance.

Source: Montana Commercial Driver License Manual 2026 — § 2.2.4, “Backing Safely,” “Use a Helper”

Question 2

What is controlled braking intended to help you do during an emergency stop?

  1. A Depend on ABS to apply the brakes automatically
  2. B Use only the parking brake
  3. C Lock every wheel as quickly as possible
  4. D Keep the vehicle straight while retaining the ability to steer

Correct answer: D – Keep the vehicle straight while retaining the ability to steer

Controlled braking means applying the brakes as hard as possible without locking the wheels. Steering-wheel movements should remain small, and the brakes should be released if the wheels lock or a larger steering correction is needed. This method is intended to keep the vehicle traveling straight while preserving the ability to steer if necessary.

Source: Montana Commercial Driver License Manual 2026 — § 2.17, “Controlled Braking”

Question 3

What is the minimum tread depth for a commercial-vehicle tire that is not on the front wheels?

  1. A 4/32 inch
  2. B 2/32 inch
  3. C 7/16 inch
  4. D 3/8 inch

Correct answer: B – 2/32 inch

Federal tire regulations require at least 2/32 inch of tread in the major grooves of tires other than those on the front wheels. Front-wheel tires require at least 4/32 inch. Montana’s CDL manual also directs drivers to inspect for exposed fabric, cuts, tread separation, improper inflation, and other tire defects.

Source: Montana Commercial Driver License Manual 2026 — § 2.1.3, “What to Look For,” “Tire Problems”, 49 CFR § 393.75(c) – Tires

Question 4

As blood alcohol concentration begins to rise, which driving-related ability is affected first?

  1. A Judgment and self-control
  2. B Hearing sensitivity
  3. C Knowledge of traffic laws
  4. D The ability to recognize colors

Correct answer: A – Judgment and self-control

The Montana CDL manual explains that alcohol first affects the part of the brain controlling judgment and self-control. This is especially dangerous because an impaired person may not recognize how seriously alcohol is affecting them. As BAC continues to rise, vision, coordination, and muscle control also deteriorate, increasing crash risk.

Source: Montana Commercial Driver License Manual 2026 — § 2.22.1, “Alcohol and Driving,” “Alcohol and the Brain”

Question 5

At an intersection, how must you respond to a flashing red traffic signal?

  1. A Stop completely, then proceed when it is safe
  2. B Slow down and continue without stopping
  3. C Proceed as though the signal were green
  4. D Yield only if another vehicle is approaching

Correct answer: A – Stop completely, then proceed when it is safe

In Montana, a flashing red signal requires a complete stop at the stop line, crosswalk, or proper point before the intersection. The right to proceed is governed by the same rules that apply after stopping at a stop sign. Check for traffic and pedestrians, yield as required, and continue only when safe.

Source: Montana Driver Manual — Ch. 3, “Traffic Signals”, MCA § 61-8-209 – Flashing Signals

Question 6

A commercial vehicle is traveling on a wet road where the posted limit is 55 mph. About what speed does CDL guidance recommend?

  1. A 45 mph
  2. B 55 mph
  3. C 35 mph
  4. D 25 mph

Correct answer: C – 35 mph

The Montana CDL manual recommends reducing speed by about one-third on a wet road, using a reduction from 55 mph to approximately 35 mph as its example. Wet pavement can double stopping distance and make steering without skidding more difficult. Further reductions may be necessary when visibility, traffic, or traction is especially poor.

Source: Montana Commercial Driver License Manual 2026 — § 2.6.2, “Matching Speed to the Road Surface”

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