cdl pre trip bus test

Pre-Trip Inspection CDL Practice Tests

Our Free Online Pre-Trip Inspection Practice Test questions and answers will prepare you online to Prepare for the Pre-Trip portion of the CDL skills test. Each test has  3 testing modes  to help you prepare and easily remember the information.

• Download your state CDL manual and open up it up in another tab of your browser. Read it over, but you don’t need to try to memorize it!
• On this page, begin the first of our CDL practice tests in Classic Mode . See how well you do, but try not to stress out about any mistakes at this point.
• Next, switch to Practice Mode  for intense preparation, complete with instant correct answers after every question and a CDL reference. 
• When you think you’re ready, take the exam! Each Exam Mode practice test is timed and you get your grade and results only after you’ve finished each test.  This is very similar to the official state CDL written exams!

Note: For more information, see our guide on  How to Pass the Official State CDL Exams .

Choose Pre-Trip Inspection Tests Here

• Get Started Now On Pre-Trip Inspection Test 1 (Classic Mode)

Pretrip Inspection Test

Cdl pretrip inspection test made easy: video tutorial, mastering the cdl pretrip inspection test: a step-by-step video guide introduction.

Are you preparing for the CDL pretrip inspection test and feeling overwhelmed? Don't worry; we've got you covered! In this comprehensive guide, we will walk you through the essential steps of the pretrip inspection test, focusing on the value of instructional videos for mastering the process.

Importance of CDL Pretrip Inspection

Before we delve into the instructional video, let's understand why the CDL pretrip inspection is crucial. It's a vital part of the CDL test, ensuring that drivers can identify and address any issues with their commercial vehicles before hitting the road.

The Challenge of Pretrip Inspection Test

For many aspiring commercial drivers, the pretrip inspection test can be perplexing. It requires a burst of attention to detail, as missing even a single step can lead to failure. However, breaking down the process into manageable steps can make it less overwhelming.

Navigating the Complexity with Video Instruction

One of the most effective ways to master the pretrip inspection test is by watching instructional videos. These videos provide a visual guide, allowing you to see each step in action and understand the intricacies of the inspection process.

Clear Visual Demonstration

Video instruction offers a clear demonstration of each component of the pretrip inspection. From checking the tires and brakes to examining the lights and indicators, seeing the process in action can significantly enhance your understanding.

Accessible Learning Resources

Instructional videos are readily available online, providing aspiring commercial drivers with easy access to valuable learning resources. With just a few clicks, you can access a wealth of video tutorials that break down the pretrip inspection into digestible segments.

Engaging and Informative Content

By utilizing instructional videos, you can engage with the content in a more interactive manner. The active voice used in the videos prompts you to participate mentally, enhancing your retention of essential information.

The Power of Detailed Guidance

In the context of the CDL pretrip inspection, detailed guidance is paramount to success. An instructional video that offers specific and clear instructions can significantly boost your confidence and competence in performing the inspection.

Step-by-Step Narration

An ideal instructional video provides step-by-step narration, guiding you through each part of the pretrip inspection process. This detailed approach ensures that no aspect is overlooked, building your proficiency in conducting a thorough inspection.

Visual Analogies for Understanding

Incorporating analogies and metaphors in instructional videos can make complex concepts easier to grasp. For instance, comparing the inspection process to a routine health checkup can help drivers relate to the significance of each inspection component.

Emphasizing Safety and Compliance

A well-crafted instructional video will emphasize the importance of safety and regulatory compliance throughout the pretrip inspection. This ensures that drivers understand the underlying purpose of each inspection element, fostering a safety-oriented mindset.

Mastering the CDL pretrip inspection test is achievable with the right guidance and resources. Leveraging instructional videos as a part of your preparation can provide you with a clear advantage in understanding the intricacies of the inspection process. With accessible, engaging, and detailed video guidance, you can approach the pretrip inspection test with confidence and competence.

CDL Pre Trip Inspection Practice Test

After you read the  CDL pre trip inspection study guide take this Class A pre trip inspection practice test. In it you’ll find questions and answers about checking components in the engine compartment, driver door fuel area, trailer, and in the cab.

Any answers not found in the pre trip inspection study guide will be found in section 11 of this online CDL manual .

You got at least 80% correct, nice job. If you didn’t get 100% correct study some more and try again.

You didn’t get 80% correct, study more and try again.

#1. Check the following belts for snugness (up to 3/4 inch play at center of belt), cracks, or frays:

#2. true or false: u bolts and tie rod are found in the engine compartment., #3. the five functions of the lights are: left turn signal; right turn signal; four way flashers; ___________; ___________, #4. true or false: when checking the steer tire tread depth should have a depth no less than 4/32 of an inch., #5. true or false: with the brakes released and pulled by hand, the push rod should never move more than 2 inches., #6. when checking the __________________ make sure it’s not leaking and it’s filled to the manufacturer’s specifications., #7. when checking the ____________ there should be none missing. look for rust trails powder residue and cracks around the bolt holes., #8. when checking the belt driven alternator it should not be cracked or frayed and the free play on the belt should be between _____________, #9. true or false: the brake chamber, brake drum and brake hose should be checked in the engine compartment, driver door fuel area and trailer., #10. true or false: when checking the drive shaft, it should not be twisted and the u-joints should be free of any debris., #11. the airbag is made out of _________., #12. on the brake lining, there should be at least _____ of an inch of friction material., #13. when checking the drive tire the tread and sidewalls should have no abrasions, bulges or cuts and the tread depth should be no less than _______ of an inch., #14. true or false: when checking trailer tire, there should be no abrasions, bulges or cuts to the tread or sidewalls. tread depth should be no less than 2/32 of an inch. the tire should be properly filled to manufacturer’s specifications and checked with an air gauge., #15. there are how many stages in an air brake test, #16. in cab emergency equipment should include a fire extinguisher, 3 red reflective triangles and ____________., #17. true or false: it is sufficient to visually check that the locking jaws is fully locked around the king pin., #18. true or false: any space between the apron and the skid plate is called a “gap”. and there should be no space between the apron and the skid plate., #19. the light check includes: ____________ both sides of the truck; rear of the truck; both sides of the trailer; rear of the trailer., #20. true or false: when inspecting the coolant level of a hot engine you will inspect the reservoir sight glass. if the engine is not hot, remove the radiator cap and check for a visible coolant level., #21. check that the landing gear is __________, has no missing parts, the crank handle is secure, and the support frame is not damaged., #22. true or false: you will not get credit if you simply kick the tires or strike the tire with a mallet or other similar device to check for proper inflation. you must use a tire gauge..

The vehicle inspection test is a skills test to see if the student can identify which features and equipment on the truck should be inspected before operating the class A vehicle, and in what condition these features or equipment should be in.

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Pre-Trip Inspection Study Guide

Our Pre-Trip Inspection Study Guide has everything you need to prepare for the Class A CDL Pre-Trip Inspection Exam . Our study guide will cover the pre-trip inspection terminology as well as a thorough list of all of the parts you will be inspecting on the vehicle. For each part you will be inspecting there will also be a list of items you will be checking for. Our study guide is broken down into the following sections:

• What You Need to Know About Pre-Trip Inspection

Pre-Trip Inspection Practice Questions

• Pre-Trip Inspection Checklist

Pre-Trip Inspection Videos

Pre-trip inspection printable resources, what you need to know about the pre-trip inspection.

The Pre-Trip Inspection is a thorough inspection of the vehicle and all of its major systems. Inspecting the vehicle before driving each day is a Federal requirement and normally takes about 15 minutes. It must be logged in your logbook as "on duty not driving."

You will have to do thorough safety inspections of the coupling system, the vehicle lights, engine compartment, tires and brakes, the chassis, the fuel tanks, and an in-cab inspection.

The following information is a brief summary of Daniel's Complete Pre-Trip Inspection taken from our oustanding free PDF download:

Engine Compartment

You will be checking the engine compartment for any sort of leaks. You will also be checking to see if all components are properly mounted and secured. None of the mounts must be cracked, bent, or broken.

You will be checking all hoses to make sure they aren't leaking, frayed, or sliced and the fluid levels including the oil level, the coolant, and the power steering fluid.

You must check the components like the water pump, the power steering pump, and the alternator to make sure nothing is leaking, the belts are not frayed, and that everything is properly mounted and secured.

From inside the engine compartment you will also find the steering system, the front suspension system, and the front brake system. All components of these systems must be properly mounted and secured without anything being cracked, bent, or broken. Finally you will be checking the tires, rims, and axle seals to make sure the tires are properly inflated, the rim isn't bent or cracked, and the axle seals are not leaking.

Fuel Tank And Battery Area

You will be standing along the side of the tractor doing a series of checks on the mirrors, fuel tanks, batteries, exhaust system, and more. You will check to make sure nothing is bent, cracked, broken, or leaking.

Check the mirrors, door hinges, door handle to make sure nothing is cracked, bent, or broken. Check to make sure there is no fuel leaking and that the fuel cap is secured and the gasket is not missing.

Check the exhaust system to make sure nothing is cracked, bent, or broken. Check the driveshaft, cat walk, and steps to make sure nothing is cracked, bent, or broken.

Check the frame and crossmembers for structural integrity. Check the air lines going to the trailer to make sure they're properly connected and that there are no abrasions, bulges, or cuts. Make sure the gaskets are present.

Check the suspension system and brakes on the drive axles, making sure nothing is cracked, bent, or broken. Make sure the brake linings are the proper thickness and that the air bags and properly inflated. Inspect the brake chambers, slack adjusters, and pushrods are properly mounted and secure. Not Cracked, Bent, or Broken. With the brakes released and pulled by hand, the Push Rod should not move more than 1 inch.

Check the rims, tires, and axle seals of the drive tires for proper inflation, no leaks around the seal, and the lugs are all present and secured.

Coupling System

You will be standing where the tractor and trailer are connected and you'll start by checking the electrical line and air lines to make sure they're properly mounted and secure at both ends. No abrasions, bulges or cuts. Not leaking air. Make sure the electrical line has no wires exposed. Check the gladhands to make sure the seals are in good condition, no cracks or signs of dry rotting. Not leaking air.

Check the skid plate of the fifth wheel and the apron of the trailer to make sure there is no debris and nothing is cracked, bent, or broken. Make sure the fifth wheel is properly greased. Also make sure there is no gap in between the fifth wheel and the trailer apron once the tractor and trailer are coupled. Make sure the kingpin of the trailer is properly mounted and not cracked, bent, or broken and that the locking jaws of the fifth wheel are properly secured when the tractor and trailer are coupled.

Check the mounting bolts where the fifth wheel attaches to the tractor frame. Make sure there are no missing bolts and that everything is secured properly. Check the locking pin if you having a sliding fifth wheel to make sure it's properly locked into place.

Make sure that there is the proper clearance space between the tractor mudflap and the trailer landing gear so that they don’t hit each other when making a turn.

You will start inspecting the trailer at the head board, which is the front wall of the trailer. Make sure there are no holes or missing rivets. Check the landing gear to make sure it is properly mounted and secure. Not cracked, bent, or broken. Make sure the fully raised and the handle is secure in the cradle when the tractor and trailer are coupled.

Check the frame and crossmembers under the trailer to make sure they're not cracked, bent, or broken. Check the tandem frame and release pins to make sure the frame is in good condition and the release handle and locking pins are in the fully locked position.

You will check the entire suspension and brake system for the trailer tandems the same way you did for the drive axles of the tractor. You will also make sure the mudflaps are properly secured. For dual tires check to see that there is proper space between the tires and there is nothing stuck between the tires.

Check the rear door and hinges to make sure they are properly mounted and nothing is cracked, bent, or broken. Make sure the door seals are not worn, torn, or dry rotted.

Light Check

You will be checking all of the lights and reflectors on both the tractor and the trailer. Check the reflectors and reflective tape to make sure they are properly mounted and secure, not cracked, bent, or broken, and clean and illuminated. Check that you have the proper color of amber to the front and sides, and red to the rear.

Start by turning on your marker lights and headlights. Now walk around the entire truck and trailer and point out the lights. Give the function of the light and the location. You should then ask your examiner to help you check your five functions.

While you're sitting in the drivers seat, the examiner will stand to the front of the truck, then behind the trailer. He will then check your Turn Signals, Four Way Flashers and Brake Lights. You must do each function at every location.

The five locations that you must check your lights:

• Front of the Truck
• Both sides of the Truck
• Rear of the Truck
• Both sides of the Trailer
• Rear of the Trailer

The Five Functions you are checking for:

• Left Turn Signal
• Right Turn Signal
• Four Way Flashers
• High Beams/Low Beams
• Brake Lights

In-Cab Inspection

The in-cab inspection and air brake check will cover the various gauges and systems inside the cab along with several tests to make sure you air brake system is working properly.

You will start by checking the following:

• Seat Belt- Properly Mounted and Secure. Not ripped or frayed Adjusts and latches properly.
• Fire Extinguisher- Properly Mounted and Secure. Fully charged
• Three Red Reflective Triangles- My three red reflective triangles are GIVE LOCATION
• Spare Electrical Fuses- My spare electrical fuses are GIVE LOCATION
• Volmeter, Oil Pressure Gauge, Water Temperature Gauge, and Air Pressure Gauge all show proper operation
• City horn and air horn functioning properly
• The windshield and mirrors are clean, no cracks or breaks, no obstructions. The mirrors are in proper adjustment.
• Windshield Wipers and Washers - Demonstrate that the washers work by spraying the windshield. The Wipers are: Properly Mounted and Secure and operate smoothly. The blades aren't cracked or dry rotten.
• Heater and Defroster - Demonstrate that both the Heater and Defroster are working properly.
• Lighting Indicators - Left Turn, Right Turn, Four Way Flashers, and High Beams.

Trailer Parking Brakes - Set the Trailer Brake, release the tractor brake, and then tug lightly on the trailer.

Tractor Parking Brakes- Then set the Tractor Brake, release the trailer brake, and then tug lightly on the tractor.

Service Brake Check - Release both Tractor and Trailer Brakes. Now drive at idle speed. Apply the Service Brake to make sure you come to a complete stop, and that it doesn't pull to the left or right when applying the brakes.

Air Brake Test

The air brake test will consist of a leakdown test to make sure your air brakes aren't leaking air and losing pressure. It will also test the warning lights and buzzer to make sure the driver gets the proper warning if the air pressure drops too low.

There are three stages to an Air Brake Test

#1: Applied Pressure Test

#2: Warning Light and Buzzer

#3 Tractor/Trailer Protection Valve Pop Out

Applied Pressure Test: Build the air pressure to governor cut out. Put the truck in the lowest gear. Then turn off the engine Immediately turn the engine back on. Push in both the tractor and trailer valves. (This will release the parking brakes.) Push and hold the Brake pedal fully. Allow the gauges to stabilize. Announce the gauges have stabilized and the Primary and Secondary PSI. With the Brakes fully pressed, you should not lose more than 4 PSI in one minute. Announce that you are listening for air leaks during that minute.

Warning Light and Buzzer Test: Pump down on the Brake pedal until the warning light and buzzer comes on, at or before 60 PSI.

Tractor/Trailer Protection Valve Pop Out Test: Pump down on the brake pedal until both the tractor and trailer protection valves pop out. They should both pop out between 40 and 20 PSI.

We have a ton of Pre-Trip Inspection Practice Questions along with the answers and a complete scoring system in our Free Online CDL Practice Tests :

The Engine Compartment Section will include questions about checking the oil level and coolant levels, inspecting belt-driven engine components (like the water pump, alternator, and air compressor), and the safety devices required in the cab. There will also be questions regarding the windshield wipers and free play in the steering wheel.

The Lights And Brakes Section will include questions about dashboard indicator lights, inspecting the parking brakes, and doing a leakdown test on the air brakes. It will also include questions about the low air pressure warning signal and testing your air horn and city horn.

The Suspension And Steering Section will include questions about the tractor protection valve, inspecting the steering box, and inspecting many suspension system parts. It will also include questions about welds being present on tire rims and the minimum tread depth required on steering axle tires.

The Tires And Coupling Devices Section will include questions about shiny trails or rusty threads on lug nuts, inspecting the battery box and cover, and inspecting electrical lines. It will also contain questions about inspecting the coupling devices and the fifth wheel skid plate.

The Emergency Equipment And Fifth Wheel Section will include questions about additional emergeny equipment required by school buses, inspecting the gap between the kingpin apron and the fifth wheel skid plate, and the landing gear securement. It will also contain questions about inspecting driver mirrors and the trailer frame.

Pre-Trip Inspection Checklist - Class A

Our pre-trip inspection checklist covers every part of the truck from front to back, both inside and outside of the truck. It covers the air brakes, suspension parts, steering components, wheels and rims, fuel tanks, batteries, lights, and more. It also covers the air brake tug test and checks for everything under the hood including alternator, water pump, fuel pump, fluids, and more.

This is a super handy checklist to study anytime you have a few minutes to spare:

Pre-Trip Inspection Checklist - Free Word Document Download (Editable Version)

Pre-Trip Inspection Checklist - Free PDF Download (Print Version)

Pre-Trip Inspection Video By Apex CDL Institute

Jeff from Apex Institute does an in-depth explanation of the entire pre-trip inspection process. This video is loaded with tips that go beyond the CDL test to help drivers really understand how to identify problems.

Pretrip Inspection Self-Test By CDL College

The Pretrip Inspection Self-Test By CDL College is really unique. It's a silent video which will show you the part you're inspecting and then gives you a few seconds to figure out what you should be checking for before giving you the answer. Definitely check this one out. Great for practicing before the CDL exam.

Pre-Trip Inspection Video By Averitt Express

This is a complete back to front pre-trip inspection of a truck and trailer by Averitt mainentance associate Kevin Breeding. This thorough pre-trip inspection covers all inportant points of inside the cab, lights, engine, the tractor itself and the trailer.

We have included two print versions of the pre-trip inspection process from Daniel. The first is the entire pre-trip inspection and the second is an abbreviated checklist for the inspection.

• PDF: Daniel's Pre-trip Inspection (Print Version)
• PDF: Daniel's Pre-trip Inspection Checklist (Print Version)

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Passenger Bus CDL Class B Pre-Trip Inspection

Pre-trip inspection passenger bus class b.

The commercial driver’s license (CDL) pre-trip inspection for a passenger bus includes 71 items to be checked.

You must name and point to or touch each item, and fully explain what you are inspecting (you must ensure the tester knows what you are referring to). You are getting graded that you know what to check each part for, not that you know the names of the parts. You will have to check each axle as outlined. There is no order or sequence to the test. If you miss a part, you can go back and identify it.

At the end of this checklist (scroll to the bottom of this page), you will find procedural videos to assist you in understanding the requirements for successfully completing the Class B (Passenger bus) Pre-Trip Inspection.

Engine Compartment

This order starts in the engine compartment and inspects only the axles on the driver’s side of the bus. The test requires you to only inspect the driver side unless the item is only on the passenger side (parts in engine compartment, exhaust).

• make sure level is between add and full
• level is sufficient for operation, between hot and cold mark
• level is between add and full
• must say that it is gear powered, working properly
• not leaking, securely mounted
• securely mounted, bolts tight, not leaking
• belt, not cracked or frayed, tension is between ½” and ¾”
• securely mounted, bolts tight
• wire secure into back of alternator
• secure to engine, bolts tight, hoses secure, not leaking
• must say that it is belt driven
• works properly
• check under vehicle for oil puddles
• check bottom of motor for leaks
• check hoses for splits, cuts
• make sure all clamps are tight
• check all hoses for leaks
• make sure to check both sides of engine for leaks/hoses

Front Truck Axle

• secure, bolts tight
• not leaking
• not cut, pinched or leaking
• fittings are secure not cracked or broken
• not bent, bolts tight, no cracks, cotter pins in place
• sockets are not worn or loose
• must check from steering box to wheel
• none broken
• all in alignment
• not shifted
• not broke or rusted
• check front and rear mount for cracks, rust
• check for tight or missing bolts
• make sure bushings are not torn or missing
• bolts tight
• not kinked, cut, swollen or leaking
• fittings secure
• not bent, broke or leaking
• not cracked dented, rusted or leaking
• clamp is secure, tight and in place
• pins in place holding slack adjuster to push rod
• straight, not broken
• no more than 1”adjustment (movement) on the push rod
• no holes, cracks or dents
• smooth surface
• no signs of grease or oil
• shoes are sufficient, more than ¼” pad
• no cracks, no chipped pads
• no fluid, grease or oil
• 4/32” tread depth
• no cuts or bubbles on side walls
• check top of tire for even wear and flat spots
• check pressure with gauge
• check valve stem is not cracked, broke, leaking or twisted and secured with cap
• none missing
• no signs of rust trails
• no cracks or distortion from lug bolt holes
• no loose or missing bolts
• proper fluid level (if sight glass)

Side of Cab

• door hinges are secure, bolts tight
• handle works, no damage to side
• seal is in tack and not torn
• opens and closes properly
• securely mounded, brackets not damages, bolts in place
• mirror is not broke and clean
• straps are secure
• cap is on tight
• must check tank & cap for leaking

Under Vehicle

• no signs of soot (leaking)
• securely mounded
• all clamps are tight
• must check hole exhaust system from turbo to top of stack
• bolts are all tight
• must also check cross members for same
• straight, no cracks, bolts are tight
• must check u-joint bolts and u-joint is free of foreign objects
• no holes, cracks, chipped and flat

Rear Truck Axle

• check front and rear mount for cracks
• fitting is secure
• not cracked or rusted or leaking
• no more than 1” adjustment (movement) on the push rod with brakes released (double chamber)
• no holes, cracks, or dents
• no cracked or chipped pads
• 2/32” tread depth
• check pressure with a gauge
• check valve stem is not cracked, secure, leaking or twisted and cap is in place
• no cracks, no rust or welded
• none missing, not loose, no signs of rust trails
• must check there is no debris between tires
• tires are evenly spaced
• rims flush (butted) together

Rear of Vehicle

• opens and closes
• no damage, holes, broken glass
• hinges are secure, no missing bolts
• seal is not missing or torn

Cab Compartment/Engine Start (need to demonstrate all mechanisms)

• push in clutch & make sure shifter is in neutral before starting engine
• if automatic transmission make sure vehicle is in neutral
• check temperature gauge for operation and in safe range
• check voltmeter for operation and in safe range
• needle indication charging
• check oil pressure gauge for operation and in safe range
• working properly, pressure builds to 120 psi or governor cut out or purge
• check steering play for no more than 10 degrees or 2”
• check parking brake by applying and putting truck in low gear and try to move (lug engine)
• must check both tractor and trailer parking brake individually
• pull forward at 5 mph and stop with foot brake, check for no pull left or right
• must be clean
• no cracks, chips or stickers
• seal is secure with no leaks
• no stickers
• mirrors are adjusted
• operate properly (must turn on)
• rubber blades are not cracked with good contact to windshield
• medal arms are secure, no damage
• washer fluid operates (squirts)
• on dash, check left & right turn arrow
• 4 way flashers
• high/low beam indicator
• blow air and electric horn
• must turn to hot and feel for air from vents
• turn on defroster to make sure they work properly
• feel for air to blow from vent at windshield
• spare fuses or breakers (which ever truck is equipped with)
• not cut, frayed or torn
• securely mounded at seat, shoulder and floor ( all points )
• build air pressure to 120, governor cut out or purge
• turn off engine then turn key to on position
• release parking brake, push in
• apply foot brake & keep pressure and listen , applied for 1 minute-cannot lose more than 3 pounds in 1 minute (must hold for full, timed minute)
• after leak test, say that low air buzzer will come on at 60 PSI, pump foot brake (fan) so buzzer will sound
• after checking the low air warning device, say that parking brake will pop out at approximately 30 PSI, pump foot brake (fan) so buttons pop

Passenger Items

• securely mounted
• walk through bus and check
• buzzer sounds when open (key on)

Lights—Amber on Front, Red on Rear (all lights, must say color and describe light condition)

• Lights (front of vehicle AMBER )-head lights (high & low beam), right/left turn signal, 4 way flashers, clearance, must turn on, clean, not broken, operating properly
• Lights (front side of vehicle AMBER )-right/left turn signal, put on emergency, flashers, make sure working, amber lenses, not broken, clean
• Lights (rear of vehicle RED )-right/left turn signal, put on 4 way flashers, clearance and brake lights, red lenses, not broken, clean

CDL Class B Passenger Bus Pre-Trip Inspection Video

A procedural training video demonstrating the requirements and best practices to help prepare you for successfully completing the Pre-Trip Inspection portion of the CDL Class B (Passenger Bus).

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Free CO CDL Pre-Trip Inspection Practice Exam

• Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
• Based on 2024 CO commercial driver's license manual
• Triple-checked for accuracy
• Updated for May 2024

About this test

This CDL practice test is a great place to start if you’re after the CO Pre-Trip Inspection endorsement. Each of the 20 questions is based on the official 2024 CDL manual . The test is designed to prepare you for the Pre-Trip Inspection portion of your 2024 Commercial Driver’s License exam. There are several answer options, but only one of them is correct. Every time you answer a question, you’ll get immediate feedback with a detailed explanation, so you won’t need to wait until the end of the test to know the correct answers.

Thoroughly prepare for your CDL Pre-Trip Inspection with our detailed guide, offering step-by-step procedures and essential tips at our Pre-Trip Inspection section .

What to expect on the actual CO CDL exam

correct answers to pass

passing score

Helpful links

CO DMV website

Official Colorado CDL manual (2024)

More CO CDL Pre-Trip Inspection Resources

• CO CDL Pre-Trip Inspection Test
• CO CDL Pre-Trip Inspection Test 2
• CO CDL Pre-Trip Inspection Test 3
• CO CDL Pre-Trip Inspection Test 4
• CO CDL Pre-Trip Inspection Marathon
• CO CDL Pre-Trip Inspection Exam Simulator

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• Expert Content Creation: Our in-house editor, Steven , who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy.
• Rigorous Review Process: Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors.
• User Feedback Mechanism: After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly.
• Responsive Updates: In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the DMV manuals. Additionally, we update the free electronic copy of the state's driver's license manuals on our site, typically within a few days after the DMV publishes them.

Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your DMV exam.

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Our Premium Membership comes with a Pass Guarantee (30-day access and longer). If you successfully complete all the practice tests for your province/territory, we promise you a passing grade on your official written knowledge test or we'll refund your money. Your most recent completion of all the tests should be not earlier than 30 days before your exam date.

Just send us an email with your full name (must match the name and email address used for your purchase at Tests.ca) within 30 days from the purchase of your Premium membership. 

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FREE New Jersey CDL Pre-Trip Inspection Practice Test 2024 | NJ

Excited to take your pre-trip inspection endorsement test? Don’t take it without taking our free New Jersey CDL Pre-Trip Inspection Practice Test first! The pre-trip inspection endorsement test is important to drivers because it certifies their inspection abilities when it comes to commercial vehicles. To help you prepare for the endorsement test, we have written 30 challenging questions – all taken from the New Jersey CDL Handbook . The regular endorsement test is also drawn from the New Jersey CDL Handbook .

What should you NOT check at the rear of a trailer during a pre-trip inspection? Why should you put the starter switch key in your pocket during the pre-trip inspection? These are the types of questions that you will find on this practice test. All questions are multiple choice with four possible answers. Each question also comes with an answer explanation. Our practice test is a great way to get familiar with the format of the real test and with the types of questions that are asked on the real test before you visit the DMV. This practice test can save you from having to pay retake fees and make multiple visits to the DMV by preparing you to pass quickly and easily. As you study, you can take this practice test an unlimited number of times. We recommend reading each of the answer explanations to further your understanding of the material. We have also included a progress tracker so that you know how you are doing as you proceed through the test. Take the test now to check – and improve – your pre-inspection knowledge.

New Jersey CDL Pre-Trip Inspection Overview:

Get the latest (2024) official NJ CDL Manual.

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