Vehicle Equipment & Safe Operation — Utah

Utah CDL practice test: 477 free practice questions (Based on the official driver handbook). The official format is not yet verified; check the official site before your test. Vehicle Equipment & Safe Operation: 196 questions. Updated

Brakes, tires, lights, mirrors, seat belts, child seats and basic vehicle control.

This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines.

Topic / MetricValue
TopicVehicle Equipment & Safe Operation
License testUtah CDL permit (CLP) knowledge tests
Topic questions196 (41% of 477 total)
Review statusThis topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines.

Official handbook

Not yet verified State CDL manual (based on the AAMVA model manual) link not yet collected

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Questions (196)

1. When stopping a manual transmission vehicle, what should you do when the engine is close to idle?
  1. Push in the clutch. ✓
  2. Push out the clutch.
  3. Shift into neutral.
  4. Shut off the vehicle.

Answer: A. Push in the clutch.

When the engine is close to idle while stopping a manual transmission vehicle, push in the clutch. The handbook's stopping instructions tell you to brake gradually and, for a manual transmission, push the clutch in when the engine is close to idle. That instruction ties clutch use to the engine nearing idle as you stop. The other choices are not part of that stopping procedure: the handbook does not say to push the clutch out, shift to neutral at that point, or shut the vehicle off. The supported action is therefore to push the clutch in.
2. When loading hazardous materials, you should do all of the following, except:
  1. Set the parking brake.
  2. Load the materials away from heat.
  3. Watch for signs of leakage.
  4. Use a hook. ✓

Answer: D. Use a hook.

The exception is to use a hook; you should not use a hook when loading hazardous materials. The handbook's loading rules tell you to set the parking brake before loading or unloading, keep hazardous materials away from heat sources, and watch for leaking or damaged containers. It also says not to use hooks, because tools can damage containers or packaging during loading. Since the question asks what you should do except, the hook is the one action that is prohibited, while the other three are required precautions.
3. Brake fade is a result of:
  1. Exposure to sunlight.
  2. Exposure to moisture.
  3. Excessive use. ✓
  4. Not using the brakes enough.

Answer: C. Excessive use.

Brake fade comes from excessive use of the brakes. The handbook explains that pressing the service brakes over and over creates too much heat. That heat changes the lining and expands the drums, so the shoes and linings do not press as firmly and friction drops. The result can keep getting worse until the vehicle cannot be slowed or stopped. The passage ties this directly to using the brakes too much instead of letting the engine help control speed. That is why excessive use is the cause named in the question.
4. When making a turn, when should you cancel your turn signal?
  1. Before you enter the turn
  2. In the middle of the turn
  3. After the turn is completed ✓
  4. It does not matter.

Answer: C. After the turn is completed

Cancel your turn signal after you have completed the turn. The handbook says to cancel turn signals when a turn or lane change is finished. It also says to signal continuously while turning and not to cancel the signal until the turn is completed. So the signal stays on through the turn and is switched off once the turn is finished. That matches the rule to cancel upon completion of a turn.
5. As part of the vehicle inspection test, a CDL applicant may be asked to:
  1. Check the engine oil level. ✓
  2. Replace a tire.
  3. Remove the alternator belt.
  4. Replace spark plugs.

Answer: A. Check the engine oil level.

You may be asked to check the engine oil level as part of the vehicle inspection test. The vehicle inspection section lists engine oil among the fluids to inspect for proper level. It says the inspection includes indicating that fluids would be checked, and it explains that correct fluid levels keep the engine and related systems working and help extend their life. Checking the oil level fits that inspection step; it is a look-and-report task, not a repair.
6. A broken exhaust system poses no threat to the driver.
  1. True
  2. False ✓

Answer: B. False

False — a broken exhaust system is a real danger because it can let poison fumes into the cab or sleeper berth. The handbook's vehicle inspection guide lists exhaust system defects and says plainly that a broken exhaust system can let poison fumes into the cab or sleeper berth. That is why the pre-trip inspection has you look for loose, broken, or missing exhaust pipes, mufflers, tailpipes, stacks, and their mounting brackets, clamps, bolts, and nuts, plus parts rubbing on fuel system parts, tires, or other moving parts, and parts that leak. Since a defect can put fumes where you breathe, saying it poses no threat to the driver is wrong.
7. As part of the vehicle inspection test, a CDL applicant may be asked to:
  1. Check the engine oil level. ✓
  2. Replace a tire.
  3. Remove the alternator belt.

Answer: A. Check the engine oil level.

A CDL applicant may be asked to check the engine oil level. The vehicle inspection section lists engine oil among the fluids that must be inspected for proper level. It explains that oil lubricates the engine and that correct fluid levels help the engine and related systems work correctly. The inspection is described as indicating that fluids would be checked for proper levels with the engine off. Checking the oil level fits this inspection task directly.
8. During a vehicle inspection, ensure that lug nuts are all of the following, except:
  1. Free of cracks.
  2. Free of distortions.
  3. Loose. ✓
  4. Free of rust.

Answer: C. Loose.

The exception is loose: during inspection, lug nuts must not be loose. The handbook says to check that all lug nuts are present and that they are not loose. It also says to look for rust trails or shiny threads, which can be signs of looseness. A loose lug nut is a defect, not a condition you want to ensure. The handbook warns that loose or missing nuts can let a wheel come off and cause a crash, so the inspection is meant to catch looseness, not confirm it.
9. During the vehicle inspection test, you will be asked to:
  1. Change a tire.
  2. Explain to the examiner what you would inspect and why. ✓
  3. Estimate the weight of a load in a trailer.
  4. Change a windshield wiper.

Answer: B. Explain to the examiner what you would inspect and why.

During the vehicle inspection test, you will be asked to explain to the examiner what you would inspect and why. The handbook says you must point to or touch and name the item you are checking, then tell the examiner what you would inspect and why. It also says the test checks whether you know if your vehicle is safe to drive. That makes explaining your inspection the task, not doing repair work or estimating a load.
10. Air tank drains:
  1. Allow rain water to enter the tank.
  2. Are used to drain water and compressor oil from the air tank. ✓
  3. Should never be opened.
  4. Must remain open during transit.

Answer: B. Are used to drain water and compressor oil from the air tank.

Air tank drains are used to drain water and compressor oil from the air tank. The handbook explains that compressed air carries some water and some compressor oil, and that both settle at the bottom of the air tank. Water left in the system can freeze in cold weather and cause brake failure. That is why each tank has a drain valve at the bottom, and why you are told to drain the tanks completely — manually at the end of each day of driving, or automatically on tanks built to expel the water and oil themselves.
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Last checked: 2026-10-17 · Verified from official source

Updated: · Based on the official driver handbook