Utah CDL General Knowledge Practice Test (UT) 2

4.9 out of 5 (69 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Dive into our Utah CDL General Knowledge Practice Test, your essential companion on the path to becoming a certified commercial driver in the Salt Lake State. This second practice permit test, part of our comprehensive suite of CDL preparation tools, is meticulously designed to reflect the real 2026 DMV CDL permit test's structure and content. With 20 carefully curated CDL questions and answers, it challenges and prepares you for the variety of topics you'll encounter on test day. Achieving a score of at least 16 correct CDL test answers is your target, a goal that, once reached, signifies your readiness for the actual Utah CDL test.This Utah DMV practice test is not just a study tool; it's a reflection of our commitment to providing up-to-date, relevant resources for aspiring commercial drivers. Updated for 2026, it aligns with the latest regulations and standards, ensuring you're studying the most current material. Regardless of the class of CDL you're pursuing or the specific endorsements you aim to add to your license, this Utah CDL practice test is a universal first step, covering essential subjects such as pre-trip vehicle inspection, basic vehicle control, and effective communication on the road.Our permit test practice is not merely an economical choice; it's a quality investment in your future. While many Utah DMV permit practice tests come with a price tag, ours is offered free of charge, yet it doesn't compromise on quality or depth. It's equipped with multiple-choice DMV test questions, real-world CDL test answers, and strategic study aids to assist you when you encounter a challenging question.Engaging with our Utah practice CDL test also serves a dual purpose: it complements the traditional drivers edcourses, which are mandatory in many states. While our 2026 free CDL practice test is an excellent resource for self-study, it's designed to be part of a broader, more comprehensive preparation strategy. It reinforces the knowledge gained from drivers edcourses, filling in any gaps and ensuring you have a robust understanding of all necessary topics.In summary, our Utah CDL General Knowledge Practice Test is more than just a set of CDL test questions and answers; it's a stepping stone toward achieving your goal of becoming a professional commercial driver. It offers a realistic glimpse into the structure and content of the Utah DMV permit test, bolstering your confidence and competence as you move closer to test day.
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Sample Utah CDL Test Questions - General Knowledge

Question 1

Which statement about a commercial vehicle’s overhead clearance is correct?

  1. A Every posted clearance height is guaranteed to be current
  2. B Repaving cannot reduce the space beneath an overpass
  3. C Changes in cargo weight can change the vehicle’s height
  4. D A vehicle’s height remains the same whether loaded or empty

Correct answer: C – Changes in cargo weight can change the vehicle’s height

Cargo weight can change a vehicle’s height. For example, an empty cargo van may sit higher than the same van when loaded. Drivers must verify adequate overhead space because repaving or packed snow can also reduce actual clearance, and successfully passing beneath an object while loaded does not guarantee clearance when empty.

Source: Utah Commercial Driver License Handbook, 2025 Edition — § 2.7.4, “Space Overhead”

Question 2

At 55 mph, what minimum following interval should you keep when driving a 30-foot commercial vehicle?

  1. A 3 seconds
  2. B 4 seconds
  3. C 5 seconds
  4. D 6 seconds

Correct answer: B – 4 seconds

A good following-distance rule is at least one second for every 10 feet of vehicle length at speeds below 40 mph. A 30-foot vehicle starts with three seconds. Because 55 mph is above 40 mph, one additional second is needed, producing a four-second following interval.

Source: Utah Commercial Driver License Handbook, 2025 Edition — § 2.7.1, “Space Ahead”

Question 3

Which factor helps determine how much liquid may be loaded into a cargo tank?

  1. A The shipper’s preferred delivery time
  2. B The weight of the liquid
  3. C The driver’s familiarity with the route
  4. D The exterior color of the tank

Correct answer: B – The weight of the liquid

The weight of the liquid is one factor in determining how much may be loaded. A tank filled with a dense liquid could exceed legal weight limits even though space remains inside it. Drivers and loaders must also account for legal weight limits and the amount the liquid will expand during transportation.

Source: Utah Commercial Driver License Handbook, 2025 Edition — § 8.2.7, “How Much to Load?”

Question 4

Which action helps prevent a second collision at an accident scene?

  1. A Leave the vehicle stopped in its traffic lane regardless of conditions
  2. B Stand in the lane and wave at approaching traffic
  3. C Call the dispatcher before protecting the scene
  4. D Activate the flashers and set out reflective warning triangles

Correct answer: D – Activate the flashers and set out reflective warning triangles

Protecting the area is the first priority when a driver is not seriously injured. Turn on the vehicle’s flashers and place reflective triangles where approaching drivers can see them in time. If practical, move an involved vehicle to the roadside and keep space available for emergency responders.

Source: Utah Commercial Driver License Handbook, 2025 Edition — § 2.20.1, “Protect the Area”

Question 5

When vehicle speed doubles, braking distance becomes approximately how many times longer?

  1. A 3 times
  2. B 2 times
  3. C 4 times
  4. D 5 times

Correct answer: C – 4 times

Doubling speed makes braking distance approximately four times longer under comparable conditions. For example, doubling speed from 20 to 40 mph produces about four times the braking distance and striking power. This rule concerns braking distance; total stopping distance also includes perception and reaction distance.

Source: Utah Commercial Driver License Handbook, 2025 Edition — § 2.6.1, “Stopping Distance”

Question 6

A school bus driver should back whenever doing so would shorten the route.

  1. A True
  2. B False

Correct answer: B – False

Backing a school bus is strongly discouraged and should occur only when there is no other safe way to move the bus. A bus must never be backed while students are outside. If backing is unavoidable, the driver should use a lookout, communicate clearly, and back slowly and smoothly.

Source: Utah Commercial Driver License Handbook, 2025 Edition — § 10.7.3, “Backing”

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