- Updated for March 2025
- Based on 2025 AK commercial driver's license manual
Free AK CDL Pre-Trip Inspection Practice Exam 2025
Your success as a commercial driver will largely be determined by employing safe, legal driving practices. Conducting a pre-trip inspection of your vehicle is the first step in safeguarding yourself and fellow motorists from costly and harmful mishaps. If you’ll be traveling the Dalton Highway, you want to make sure you can handle its steep grades and not be left stranded by its lack of services in case you break down. A pre-trip inspection is your first line of defense. It also keeps you in compliance with federal regulation 49 CFR § 396.13, which requires drivers to verify the safety of their vehicle before traveling on public roads. By using a checklist to inspect the vital systems and components of your vehicle, such as the brakes, mirrors, engine, and battery, you can prevent accidents and mechanical breakdowns. You can expect to see questions about pre-trip inspections on the DMV Commercial Driver’s License (CDL) General Knowledge Test,
While there are some additional requirements, your knowledge of pre-trip inspections is one of the most important factors in earning a DMV Commercial Learner’s Permit (CLP). If you’re looking for a resource to help sharpen your skills, our Alaska DMV CDL Pre-Trip Inspection Practice Test is your best option. There are multiple on-line resources offering to teach you about pre-trip inspections, but they are much less effective. If you want to become a commercial driver, you must begin by obtaining a CLP to train for a CDL. Unless you answer 80% of the 20 questions correctly on the official knowledge test, you will experience a career setback and be forced to retest.
Our CDL Pre-Trip Inspection Practice Test sets itself apart from other on-line resources with an interactive learning process. For instance, a study guide will only teach you to memorize the answers to the questions. They won’t provide you with the information you need to understand any aspect of pre-trip inspections that may confuse you. In comparison, the practice test is based on the most recent Alaska DMV CDL driver’s manual (Alaska CDL Handbook 2025) and is up to date as of March 2025. The practice test contains 20 multiple-choice questions, just like the ones on the official knowledge test, to assess your current knowledge of pre-trip inspections and teach you the details you don’t fully understand. If you get a question wrong, the practice test will provide a detailed explanation of the correct answer. This approach allows you to make a connection between the question and the logic behind the answer to enhance your understanding. You will be equipped with the skills and confidence to pass your official knowledge test and guarantee you many miles of safe travels.
Scaling Denali begins with taking the first step, and expanding your driving skills starts with practice tests for other U.S. states and Washington D.C. at https://driving-tests.org/academy/drivers-license.
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual AK DMV exam
questions
correct answers to pass
passing score
List of questions (classic view)
- What structure supporting the fifth wheel skid plate should be checked for cracks or breaks?
- You pump the pedal three times and hold it down for five seconds, making sure that the pedal does not move. What are you inspecting?
- What transmits power from the transmission to the drive axle?
- What carries air or hydraulic fluid to the wheel brake assembly?
- ________ are gas or hydraulic devices that cushion the vehicle's ride and stabilize the vehicle.
- What is the sliding mechanism and locking device for tandem axles on trailers?
- What do you inspect to make sure that all are present and show no signs of looseness such as rust trails or shiny threads?
- What should you check to be sure it is solid, clear of objects, and securely bolted to the tractor frame?
- What maintains air pressure in the air brake system?
- Which tires should have a minimum tread depth of 4/32 inch?
- Which of the following can disengage the engine from the drivetrain?
- What transforms steering column action into wheel action?
- Make sure that the _________ are not cut, chafed, spliced, or worn, and not tangled, pinched, or dragged against tractor parts.
- You are looking for puddles on the ground and dripping fluids on the underside of the engine and transmission. What are you checking for?
- What should be fully engaged with no loose or missing pins in the slide mechanism of the sliding fifth wheel?
- To improve visibility during severe or stormy weather, __________ must be secure, undamaged, and operating smoothly and correctly.
- _________ should be clean with no dirt, illegal stickers, obstructions, or damage.
- _________ are the brackets, bolts, or bushings that are used to attach the spring or air bag to the axle and vehicle frame.
- If the wheel has a sight glass, check that the oil level is adequate. Otherwise, look for leaks around the
- What releases the fifth wheel locking jaws so the trailer can be coupled?
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