missouri cdl pre trip test

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• MO CDL Pre-Trip Inspection

Missouri CDL Pre-Trip Checklist Vehicle Inspection (Walk-Around) Skills Test

First of three missouri cdl skills tests - the missouri cdl vehicle checklist inspection skills test must be passed prior to being allowed to continue., there are three parts to the missouri cdl skills test.

• First Part: Missouri CDL PreTrip Inspection on THIS page . . .
• Second Part: Missouri CDL Basic Vehicle Control
• Third Part: Missouri CDL Road Test

Missouri CDL Pre Trip Inspection Diagram

Vehicle Pre-Trip Checklist Inspection - Missouri CDL Skills Tests:

Quick study guide to missouri cdl pre-trip inspection.

• Engine Compartment
• Cab Check and Engine Start
• Brake Check
• External Cab

1. Missouri CDL Engine Compartment Pre-Trip Inspection

• Look for puddles on the ground that would indicate a leak.
• Look for dripping fluids on the underside of the engine and transmission.
• Inspect hoses for "good" condition and leaks.
• Indicate the location of dipstick.
• Make sure the oil level is within safe operating range and above the refill mark.
• a) Checking the reservoir sight glass, or
• b) Removing the radiator cap if the engine is not hot and visually checking the coolant level.
• Indicate the location of the power steering fluid dipstick.
• Confirm that there is an adequate power steering fluid level that is above the refill mark.
• power steering belt
• water pump belt
• alternator belt
• air compressor belt

2. Missouri CDL Cab Check and Engine Start - Pre-Trip Inspection

• Manual Transmissions:
• Depress the clutch.
• Place the gearshift lever in neutral.
• Start the engine and then slowly release the clutch.
• Automatic Transmissions:
• Confirm the vehicle is in �park� and start the engine.
• Confirm that the oil pressure gauge is functioning.
• Make sure that the pressure gauge shows increasing or normal oil pressure, otherwise that the warning light goes off.
• If equipped with an oil temperature gauge, it should begin to gradually rise to a normal operating range.
• Confirm that the temperature gauge is working.
• The temperature gauge should begin to climb to the normal operating range.
• The gauges should show the alternator and/or generator charging; otherwise the warning light should be set off.
• Check for proper operation and acceptable readings on the air and vacuum gauges.
• The speedometer should not be obscured or obviously broken.
• Mirrors should be clean and adjusted properly from the inside.
• Windshield should be clean with no illegal stickers, obstructions, or damage to the glass.
• Three red reflective triangles.
• One properly charged and rated fire extinguisher.
• Spare electrical fuses.
• Power steering equipped vehicles: With the engine running, play should not exceed 10 degrees (or about two inches on a 20-inch wheel) before the front left wheel barely moves when you turn the steering wheel back and forth.
• Non-power steering vehicles: Play should not exceed 10 degrees (or about two inches on a 20-inch wheel) when you turn the steering wheel back and forth.
• Check that the wiper arms and blades are not damaged and operate smoothly.
• Windshield washers must operate correctly if the vehicle is equipped.
• Left turn signal
• Right turn signal
• 4-way emergency flashers
• High beam headlight
• Check that air horn and/or electric horn are operational.
• Test that the heater and defroster works.
• Check that the safety belt is securely mounted, adjusts, and latches properly.
• Clearance lights (red on rear, amber elsewhere)
• Headlights (high and low beams)
• Turn signals
• 4-way flashers
• Brake lights
• Red reflectors (on rear) and amber reflectors (elsewhere)

3. Missouri CDL Brake Check Pre-Trip Inspection

• Apply parking brake only and shift into a lower gear. Gently pull against the brake by releasing the clutch, and it should hold the vehicle.
• With the engine running, apply the foot brake and hold for five seconds. The pedal should not move (lose pressure) during those five seconds.
• If equipped with a hydraulic brake reserve system, with the key in the off position, depress the brake pedal and listen for the sound of the reserve system electric motor turning on.
• Check that the warning buzzer and light is off.
• Check the proper operation of the foot brake by moving the vehicle forward slowly at about 5 mph and applying the brake firmly.
• With a fully-charged air system, typically at 120 psi, turn the engine off, chock the wheels, release (push in) the parking brake button and trailer air supply button (for combination vehicles) and time the air pressure drop. After the initial drop, the rate of pressure loss should not be more than 2 psi per minute for single vehicles and no more than 3 psi per minute for combination vehicles
• Release (push in) the parking brake and trailer air supply button (for combination vehicles), and apply pressure to the foot brake. After the initial drop in pressure, the rate of pressure loss should be no more than 3 psi per minute for single vehicles and no more than 4 psi per minute for combination vehicles.
• Turn the key to the on position. Rapidly depress and release the foot brake to reduce air tank pressure. The low air pressure warning signal must come on before the pressure drops below 60 psi.
• Continue to rapidly apply and release the service brake pedal further reducing air pressure. The trailer air supply button (for combination vehicles) and parking brake button should pop out when the pressure falls to usually between 20 to 40 psi. This should activate the spring brakes.
• While the engine is operating at 1800 RPM, the pressure should rise from 85 to 100 psi within 45 seconds in dual air systems.
• With normal air pressure, release the parking brake and trailer air supply button (for combination vehicles), move the vehicle forward slowly at about 5 mph and apply the brakes firmly using the brake pedal. Test for any pulling to any one side or delayed stopping action.

4. Missouri CDL External Cab | Truck | Bus Pre-Trip Inspection

• Check that the steering box is mounted securely and is not leaking.
• Check for damage to power steering hoses and power steering fluid leaks.
• Check that connecting links, arms, and rods from the steering box to the wheels are not worn and cracked.
• Check that the joints and sockets are not loose or worn and that there are no missing nuts, bolts, or cotter keys.
• Check for shifted, cracked, broken, or even missing leaf springs.
• Check for broken and distorted coil springs.
• If equipped, check the air ride suspension for damage and leaks.
• Look for cracked or broken spring hangers, missing or damaged bushings, and broken, loose, or missing bolts, U-bolts or other axle mounting parts.
• Confirm that the shock absorbers are secure and that there are no leaks.
• Look for missing, loose or broken parts.
• The angle between the adjuster arm and push rod should be not less than 90 degrees when the brakes are applied and when the brakes are released a little over 90 degrees.
• When pulled by hand, the brake rod should not move more than one inch with the brakes released.
• Check that brake chambers are not dented, cracked, or leaking and that they are mounted securely.
• Check for worn, cracked or leaking hoses, lines, and couplings.
• Check for dents, cracks or holes, and loose or missing bolts.
• Brake linings and pads should not be worn thin.
• Where visible, check that a reasonable amount of brake lining is showing.
• Check for damaged or bent rims. Rims cannot have welding repairs.
• Tread depth: need a minimum tread depth of 4/32 on steering axle tires, 2/32 on all other tires.
• Tire condition: Check that tread is evenly worn and without cuts or damage to tread or sidewalls. Valve caps and stems should not be missing, broken, or damaged.
• Tire inflation: Check for proper inflation with a tire gauge or by striking tires with a mallet.
• Check that hub oil/grease seals and axle seals are not leaking.
• Check for any missing lug nuts, cracks, distortions, and for signs of looseness such as rust trails or shiny threads.
• Check for cracked or distorted bolt holes.
• Spacers should not be bent, damaged, or rusted through.
• Spacers should be centered evenly.
• Check doors for any damage and that they open and close properly.
• Hinges should be secure with seals intact.
• Mirrors and mirror brackets should be mounted securely.
• Check for secure tanks, tight caps, and that the tanks or lines don�t leak.
• Check to see that batteries are secure, for tight cable connections, and that cell caps are present.
• Check for signs of excessive corrosion.
• Battery box and cover/door must be secure.
• The drive shaft should not be bent or cracked.
• Couplings should be secure.
• Check system for rust or carbon soot as they are signs of damage or leaks.
• System should be secure and connected tightly.
• Check the longitudinal frame members, cross members, box, and floor for cracks, broken welds, holes or other damage.
• If equipped with mud flaps or splash guards, check that they are mounted securely and not damaged.
• Doors and hinges must open, close, and latch properly from the outside, and should not be damaged.
• Check that any ties, straps, chains, and binders are secure.
• If equipped with a cargo lift, it must be fully retracted and latched securely, and should not be leaking, damaged or missing any parts.
• Check that electrical lines and air hoses are not cut, chafed, spliced, or worn, the steel braid should not show through its outer lining.
• Make sure the lines and hoses are not tangled or dragging against tractor parts.
• Make sure the catwalk is securely bolted to tractor frame.
• Check for loose or missing mounting brackets, clamps, bolts, or nuts. The fifth wheel and the slide mounting must be solidly attached.
• Other types of coupling systems should be inspected for missing or broken components.
• Check that the locking jaws fully close around the kingpin
• On other types of coupling systems the locking mechanism should not have missing or broken parts and should lock securely.
• The platform structure supporting the fifth wheel skid plate should be free of cracks or breaks.
• If equipped with a release arm, check that it engaged and that the safety latch is in place.
• The kingpin should not be bent.
• The visible part of the apron should not be bent, cracked, or broken.
• The trailer should be laying flat on the fifth wheel skid plate without any gap.
• Locking pins should be fully engaged.
• The fifth wheel should be positioned so the tractor frame will not strike the landing gear or the tractor.

5. Missouri CDL Trailer Pre-Trip Inspection

• The trailer air connectors should be sealed and in good condition.
• Glad hands should be locked in place and free of damage or air leaks.
• The trailer electrical plug should be firmly seated and locked in place.
• If equipped with a header board, check to see that it is secure, damage-free and strong enough to contain cargo.
• If equipped with a canvas or tarp carrier, it should be mounted and fastened securely.
• Check the front area of enclosed trailers for cracks, bulges or holes.
• The landing gear must be fully raised. Check that it has no missing parts with a non-damaged support frame and that the crank handle is secure.
• Check for air or hydraulic leaks if power operated.
• Check that doors are not damaged and that they open, close, and latch properly from the outside.
• Ties, straps, chains, and binders should be secure.
• Any cargo lifts should be checked for leaking, damaged or missing parts, and should be fully retracted and latched securely.
• The frame, cross members, box, and floor should be checked for holes, cracks, broken welds or other damage.
• If equipped, make sure that the release arm is secured and that the locking pins are locked in place.
• Suspension System
• Doors, Ties and Lift
• Splash Guards

Are YOU ready to get YOUR Missouri CDL? Prepare for YOUR Missouri CDL Tests NOW . . .

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• and much more!

Knowledge Test Class A

This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question.. Read More

This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has three possible answer choices. Test questions come from the Missouri Commercial Driver’s Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination, Doubles and Hazardous Materials. Endorsements that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.

1. Blocking cargo:

2. if you are driving at a reduced speed in a construction zone when you spot a construction worker near the road, you should:, 3. if you see taillights ahead while you are driving in fog:, 4. to make your vehicle more visible during the day, you should:, 5. when backing a truck, you should:, 6. when applying for a hazardous materials endorsement, being found guilty of which of the following is a disqualifying offense, 7. when driving a vehicle equipped with an anti-lock braking system (abs), you should:, see the exact questions that will be on the 2024 missouri dmv exam..

99.2% of people who use the cheat sheet pass the FIRST TIME

Alexa shares with us how she went in for her Class A permit and decided to get her Hazmat endorsement as a bonus!

Mark shares his feedback on his Class A CDL Cheat Sheet

Frequently Asked Questions

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Changes coming to Missouri’s CDL testing procedure

QUINCY (WGEM) - Officials with the Missouri State Highway Patrol and Missouri Department of Revenue announced Wednesday a new testing protocol for incoming individuals interested in getting a commercial driver’s license (CDL).

CDL applicants will start the new modernized testing standard on Dec. 4. CDL examiners at all examination sites and all third-party examination sites will utilize the new testing procedure. The changes in the procedure include a more streamlined pre-trip examination and more efficient basic skill courses.

Individuals wishing to prepare for a CDL skills test on Dec. 4 or later should utilize the following CDL manual to learn the applicable procedures with the New Missouri CDL Manual .

The current testing procedures will remain in effect statewide until Dec. 1.

MSHP and MDR stated that applicants must pass the pre-trip and basic skills using the same testing model per federal guidelines. Suppose an applicant passes the pre-trip examination under the previous CDL testing procedure. In that case, they must pass the basic skills test using that same testing procedure to be eligible for the road test.

More information can be found here .

Copyright 2023 WGEM. All rights reserved.

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Start Your FREE Missouri CDL Practice Test Now

Are you looking for a Missouri commercial driver's license? Is there any difficulty in elevating your knowledge and confidence to take the CDL exam? Our MO CDL practice tests are here to help you out with state-of-the-art prep materials based on the 2022 Missouri CDL Permit Manual.

Missouri CDL Practice Test 2024

A Commercial Driver's License (CDL) is required to legally operate cars and transport passengers, cargo, or property on Missouri roads. To transport hazardous materials and passengers, drive school buses and school activity buses, pull double trailers, or drive tank trucks, they must also have a special endorsement. Depending on the type of CDL and/or endorsement you desire, you must additionally pass a series of written, vision, and road tests. All of the questions on your test can be found in the Missouri Commercial Driver's Manual .

To help your study become easier, enjoyable and flexible, we highly recommend you take Missouri CDL Practice Test 2022, which provides a free practice question bank and numerous flashcards. Let’s get the tests right now!

1. What is included in the written tests?  

The standardized CDL written tests consist of: 

• The general knowledge test : The test is taken by all applicants. The drivers need to properly answer at least 40 out of 50 questions to pass this test.
• The passenger transport test (P) : The test is right for all bus driver applicants.
• The air brakes test: If you drive a vehicle that has air brakes including air over hydraulic brakes, you should take this test. 
• The combination vehicles test : The test is required if you want to drive combination vehicles.
• The hazardous materials test (H) : The test is required for those who want to haul hazardous materials.
• The tank vehicle test (N) : The test is required if you want to haul any liquid or gaseous materials in a tank or tanks which have an individual rated capacity of more than 119 gallons and an aggregate rated capacity of 1,000 gallons or more. Besides, the tank is either permanently or temporarily attached to the vehicle or chassis.
• The doubles/triples test (T) : The test is required if you want to pull double or triple trailers.
• The School Bus test (S) If you want to drive a school bus, you are required to take the test. 

2. What is included on the skills tests?  

After the successful completion of the knowledge test(s), you must have your Commercial Learner Permit which is valid within 14 days before you are allowed to take your skills test. There are 3 types of general skills that will be tested as follows: 

• Pre-trip inspection: You will check your vehicle to see whether it is safe to drive and then explain to the examiner what you would inspect and why. 
• Basic vehicle control: You will be asked to move your vehicle forward, backward, and turn it within a defined area marked with traffic lanes, cones, barriers, or something similar. 
• On-road driving: You will be tested on your skill to safely drive your vehicle in a variety of traffic situations including left and right turns, intersections, railroad crossings, curves, up and down grades, single or multi-lane roads, streets, or highways. 

3. When do you need to possess a CDL in Missouri?

The Missouri drivers who are going to operate the following types of vehicles must arm themselves with a CDL: 

• The vehicles weigh 26,001 or more pounds Gross Combination Weight Rating (GCWR)
• The vehicles weigh over 26,000 Ibs, towing a unit over 10,000 pounds GVWR
• The vehicles are designed to carry 16 or more passengers, including the driver
• The vehicles transport hazardous materials or carry a select agent or toxin listed in 42 CFR Part 73 requiring placards (regardless of vehicle size.)

Note that your MS CDL is valid for 5 years and you have to renew it when your CDL card expires.

4. How to obtain a Commercial Learner Permit? 

All applicants must get a Commercial Learner Permit (CLP) to be eligible for the CDL skills test. Here are some requirements you must meet to obtain the permit: 

• You are at least 18 years of age.
• You must be a Missouri resident and either a US citizen or a permanent resident immigrant.
• You hold a valid noncommercial driver's license.
• You pass the knowledge tests for the type of vehicle you will be driving.
• You have a valid federal medical card.

5. How do you take your Missouri CDL Skills Test?

You must have a CLP (Commercial Learner Permit)   for 14 days before you are allowed to take a skills test. 

All applicants for a commercial driver's license must pass a skills test in the type of vehicle they plan to drive. For example, the applicant is required to pass a skills test in a school bus or passenger-carrying vehicle if he or she wants to gain a license endorsement for driving a school bus or a commercial motor vehicle carrying passengers.

6. How much must you pay for a CDL in Missouri? 

If you want to possess a CDL in Missouri, you need to pay some fees as follows: 

• Commercial learner's permit: $16.
• CDL application fee: $29.
• Commercial driver's license: $55.
• Endorsements: $5 each.

7. Why should you opt for the Missouri CDL practice test online?

Our Missouri CDL practice test was established with the goal of assisting CDL applicants in passing the CDL test, particularly the knowledge test. Our practice tests cover the following sections:

• Missouri CDL General Knowledge practice test
• Missouri CDL Air Brakes practice test
• Missouri CDL Combination practice test
• Missouri CDL Pre-trip Inspection practice test

and 5 endorsements:

• Missouri  CDL Tanker practice test
• Missouri CDL Double And Triple-Trailer practice test
• Missouri CDL HazMat practice test (Hazardous Materials)
• Missouri CDL School Bus practice test
• Missouri CDL Passenger practice test

All the CDL practice questions are compiled and amended on a regular basis based on the Missouri CDL Driver’s Manual 2022 . With the Internet connection and a computer or mobile device, you can FREELY do any WI CDL practice test irrespective of time and place, which hopefully contribute to your learning progress to be qualified for the CDL License.

CDL Pre-Trip Inspection Checklist

Studying this Class-A CDL pre-trip inspection checklist is an important part of truck driver training. Before getting your Class-A CDL and finding an entry level truck driving job , most states will require students to pass a DOT (department of transportation) pre-trip inspection test and a general knowledge test .

Each company’s pre-trip inspection varies slightly. Most likely you will have to do the coupling system, light check and in-cab inspections plus one of the remaining three sections.

Pre Trip Inspection Checklist

Download free and print it! Printable Pre Trip Inspection Checklist (PDF)

There are many sections to learn but the test is not as difficult as it may seem. Studying our simplified Class-A pre-trip inspection checklist and taking classes at your local CDL training school will get you prepared.

Engine Compartment

Driver door fuel area, coupling area, light check, in-cab inspection and brake tests, belt driven alternator, belt driven water pump, brake chamber, brake lining, caste nuts and cotter pins, coolant reservoir, gear box and hoses, gear driven air compressor, gear driven power steering pump.

• General Hoses

Leaf Springs

Power steering fluid reservoir, shock absorber, slack adjuster and push rod, spring hanger, steering column, what to check for:.

When checking the engine compartment, you will always want to make sure the following components are properly mounted and secured. You should also make sure they are not cracked, bent or broken. The items you will need to check for include:

• Make sure all of the wires are connected. The belt should not be cracked or frayed and the free play on the belt should be between ½ to ¾ of an inch.
• The free play on the belt should be between ½ to ¾ of an inch. Also check all the hoses running to and from the water pump to make sure nothing is leaking.
• The brake chamber should not be leaking air.
• The brake drum should be properly mounted and secure.
• The brake hose is rubber, so it is important to make sure it is not leaking air.
• Check for oil or debris on the lining. There should be at least ¼ of an inch of friction material.
• Make sure all three caste nuts and cotter pins are present.
• The reservoir should not leaking and must be filled to the manufacturer’s specifications.
• Make sure the drag link is properly mounted and secure, and not cracked, bent or broken.
• The gear box and hoses should have no abrasions, bulges or cuts, and should not be leaking.
• Although the air compressor is hard to see, you must make sure it is properly mounted and does not leak.
• The steering pump is located in the same place as the air compressor and is also gear driven. Ensure the steering pump is not leaking.

General Hoses (Passenger and Driver’s Side)

• The hoses should be secure at both ends. There should be no abrasions, bulges or cuts. Fluids run through these hoses, so it is important to make sure they are not leaking.
• The hub seal (or axle seal) should not be leaking and should be filled to the manufacturer’s specifications.
• Make sure none of the leaf springs have shifted.
• Check for leaks under the truck.
• There should be no lug nuts missing. Look for rust trails, powder residue and cracks around the bolt holes.
• The oil level should be filled to the manufacturer’s specifications.
• Make sure the pitman arm is properly mounted and secure. It should be not cracked, bent or broken.
• Make sure this reservoir is not leaking and filled to the manufacturer’s specifications.
• The rim cannot have any unauthorized welds.
• Make sure the shock absorber is not leaking. If it is leaking, the leak will be at the point where the top and bottom portion of the shock meet.
• With the brakes released and pulled by hand, the push rod should never move more than one inch.
• The spring hanger should be properly mounted and secure.
• Make sure the steering column is properly mounted and secure. It should not be cracked, bent or broken.
• Look for abrasions, bulges or cuts on the tread or sidewalls. Tread depth should have a depth no less than 4/32 of an inch. Tires must be properly filled to the manufacturer’s specifications. This can be checked with an air gauge.
• Make sure the tie rod is properly mounted and secure, not cracked, bent or broken.
• Make sure all are accounted for.

Back to top of Engine Compartment

Catwalk and Steps

Door and hinges, drive shaft, exhaust system, frame and cross members, spring mount.

Again it is important to make sure these items are properly mounted and secure. Look for cracks, bends, and breaks.

• The actual airbag is rubber, so it is important to check for abrasions, bulges, cuts and leaks, in addition to any missing mounting bolts.
• The axle seal should not be leaking and should be filled to the manufacturer’s specifications.
• Make sure to mention the brake chamber is not leaking air.
• Make sure the brake drum is secured properly. Also look for cracks, bends and breaks.
• Check the brake hose at both ends to make sure it is not leaking air.
• There should be no oil or debris on the brake lining. There should be at least ¼ of an inch of friction material.
• The cat walk and steps should be clear of any loose objects.
• Physically demonstrate that the doors open, close and latch properly. Door seals should not be worn, torn or rotten.
• The drive shaft should not be twisted and the u-joints should be free of any debris.
• The tread and sidewalls should have no abrasions, bulges or cuts. The tread depth should be no less than 2/32 of an inch. Tires should be properly filled to the manufacturer’s specifications. This can be checked with an air gauge.
• The exhaust system should show no signs of leaks.
• There should be no unauthorized holes or welds. Bundle up the cross members to ensure none are missing.
• Fuel should not be leaking from the tank and the cap should always be on tight.
• Rust trails could indicate loose bolts, while powder residue and racks around the bolts could mean the bolts have been over-tightened.
• Mirrors should be clean for best visibility.
• Make sure the mud flap is secured properly. Also look for cracks, bends and breaks.
• Make sure to mention there should be never be any unauthorized welds.
• The shock absorber should be secure at both ends and not leaking. If it does leak, it will leak in the middle.
• With the brakes released and pulled by hand, the push rod should not move more than one inch.
• If you are equipped with duals, check to see there is proper spacing between the tires and there is nothing stuck.
• The spring arm should be secure at both ends.
• The spring mount should be secure at both ends.
• Make sure the torque arm is secured properly. Also look for cracks, bends and breaks.
• Make sure to check and mention that no U-bolts are missing.

Back to  top of Driver Door Fuel Area

Electric Line

Locking jaws, mounting bolts, release arm, sliding fifth wheel locking pin.

• Air lines should be secure at both ends with no abrasions, bulges or cuts. They should not be leaking, dragging or tangled.
• Make sure the apron is properly mounted and secure. Look for cracks, bends and breaks.
• Make sure there is enough space between the tractor mudflap and the trailer landing gear so that they don’t hit each other when making a turn.
• The electric line should be secure at both ends. There should be no abrasions, bulges, cuts or exposed wires.
• The gap is not an actual item, however there should be no space between the apron and the skid plate.
• The seals should be in good condition with no cracks, signs of rotting, or leaking air.
• Make sure the king pin is properly mounted and secure. Look for cracks, bends and breaks.
• You must physically check that the locking jaws is fully locked around the king pin.
• No mounting bolts should be missing.
• Make sure the platform is properly mounted and secure. Look for cracks, bends and breaks.
• The release arm should be in the fully locked position.
• The skid plate needs to be properly lubed.
• The pin must be in the fully locked position.

Back to top of Coupling Area

Header Board

Landing gear, rear door and hinges.

• Shock Absorbers

Tandem Frame and Release

Trailer tire.

• Again make sure the airbag has no abrasions, bulges, cuts or leakings. The airbag should not be missing any mounting bolts.
• The brake chamber should be properly mounted so that is does not leak air.
• The brake hose should be secure at both ends with no abrasions, bulges, cuts or leaks.
• Check for oil or debris on the brake lining. There should be at least ¼ of an inch of friction material.
• There cannot be any missing cross members.
• The header board cannot have any holes or missing rivets.
• The landing gear must be fully raised and the cradle handle secure.
• Rust trails indicate loose bolts. Powder residue and cracks around the bolt holes could be an indication of over-tightened bolts.
• The rims cannot have any unauthorized welds.
• The rear door should open, close and latch properly. Door seals should not be worn, torn or dry rotten.
• The shock absorber should be checked at both ends for leaks.
• When the brakes are released and pulled by hand, the push rod should not move more than one inch.
• Release handle and locking pins should be in the fully locked position.

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.

• Front of the truck
• Both sides of the truck
• Rear of the truck
• Both sides of the trailer
• Rear of the trailer

Back to top of Trailer

The five functions are:

• Left turn signal
• Right turn signal
• Four way flashers
• High/low beams
• Brake lights

Back to top of Light Check

• Airbrake Test

Air Pressure Gauges

Emergency equipment, heater and defroster, lighting indicators, oil pressure gauge, parking brake, service brake check, water temperature gauge, windshield and mirrors, windshield wipers and washers.

The last section is In-Cab Inspection and Brake Tests. For the In-Cab Inspection you will once again want to make sure all of the following components are properly mounted and secure. As well as the following:

Air Brake Test

There are three stages to an air brake test:

• Applied Pressure Test – When doing the Applied Pressure Test, you will want to build the air pressure to governor cut out. Put the truck in the lowest gear, turn the engine off and immediately turn it back on. Push in the tractor and trailer valves which will then release the parking brakes. Push and hold the brake pedal, allowing the gauges to stabilize. When the gauges have stabilized, announce the Primary and Secondary PSI. Listen for air leaks while doing this.
• Warning Light and Buzzer – Pump down on the brake pedal until the warning light and buzzer comes on. This is typically at or before 60 PSI.
• Tractor/Trailer Protection Valve Pop Out – Pump down on the brake pedal until the tractor and trailer protection valves pop out, this will be between 20 and 40 PSI.
• The air pressure gauges should build to governor cut out.
• Your truck should have a fire extinguisher, three red reflective triangles and spare electrical fuses.
• Demonstrate both the heater and defroster are working properly.

Horns (Air Horn and City Horn)

• Blow both horns to make sure they are working.
• Check the left turn, right turn, four way flashers and high beams; also point these out on the dashboard.
• Make sure transmission is in neutral and then fully depress the clutch. Turn the key on, check the ABS light, announce when it comes on and off, and start the engine.
• The seat belt should not be ripped or frayed and should adjust and latch properly.
• The engine oil pressure gauge should rise to normal operating range.
• Trailer Parking Brakes – Set the trailer brake, release the tractor brake, then tug lightly on the trailer.
• Tractor Parking Brakes – Set the tractor brake, release the trailer brake and tug lightly on the trailer.
• Release both the tractor and trailer brakes. 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.
• The voltmeter should be charging between 13 and 14 volts.
• The water temperature gauge should also rise to normal operating range.
• The windshield and mirrors must be clean, with no obstructions and in proper adjustment.
• Demonstrate the wipers and washers are working properly by spraying the windshield.

Back to top of In-Cab Inspection and Brake Tests

During a CDL pre-trip inspection, truckers inspect many aspects of their commercial vehicle, including the overall safety of the vehicle; major hoses, fluid levels, and vehicle belts; the clutch or gear shift; and emergency equipment. The driver demonstrates their knowledge by walking around the vehicle, checking various safety components and explaining why each part should be checked for safety.

Reference and practice tests:

• Printable Pre Trip Inspection Checklist (PDF)
• CDL General Knowledge Practice Test
• Pre Trip Inspection Practice Test
• CDL HAZMAT Endorsement Practice Test

Edited for 2024 on  12/5/23

Get started on your FREE 2024 MO DOR CDL Practice Tests now!

Welcome users from the show-me state, the missouri dor tests below we designed with the 2024 missouri cdl manual to get you ready to pass the cdl exams. these tests include general knowledge, air brakes, combination, doubles & triples, tanker, hazardous material, passenger, and school bus. we have also created pre trip practice tests to get you stated on the pre trip inspection exam that follows passing your written exams., we have three options to help you on your path. our cdl practice tests offer immediate feedback showing you the question, your answer, the correct answer, and an explanation. we also have a cdl quick review which take the form of flashcards, and the cdl exam simulator that will give you chance at a real testing environment., general knowledge - more information the general knowledge test is the first of several tests that you will have to complete in order to get your cdl. the questions cover general information about commercial vehicles, driving, and vehicle inspections. the test has a total of 50 questions, and requires at least 40 correct answers to pass., general knowledge practice test 1, general knowledge practice test 2, general knowledge practice test 3, general knowledge practice test 4, general knowledge practice test 5, general knowledge practice test 6, general knowledge practice test 7, general knowledge practice test 8, air brakes - more information you must have an air brake endorsement on your driver's license to drive a vehicle equipped with an air brake system. this test will test your knowledge of the function, parts, and braking distance of air brakes. the test will consist of 25 questions, and at least 20 correct answers are needed to pass., air brakes practice test 1, air brakes practice test 2, air brakes practice test 3, air brakes practice test 4, combination - more information the combination endorsement allows you to drive a vehicle with a power unit and one trailer. this test will cover the "ins and outs" of operating articulated vehicles. the exam consists of 25 questions, and requires at least 20 correct to pass., combination practice test 1, combination practice test 2, combination practice test 3, combination practice test 4, combination practice test 5, hazardous material - more information the hazardous material endorsement allows the driver to operate a vehicle containing items such as poisons, explosives, flammables, etc. you will also have to pass the tsa hazardous material threat assessment to get this endorsement. there are 30 questions, 24 correct required to pass., hazardous material practice test 1, hazardous material practice test 2, hazardous material practice test 3, hazardous material practice test 4, tanker - more information the tanker endorsement allows the driver to operate a vehicle weighing more than 26,000 pounds designed to transport any liquid or gaseous material within a tank that is permanently or temporarily attached to the vehicle. there are 20 questions, 16 correct required to pass., tanker practice test 1, tanker practice test 2, tanker practice test 3, doubles / triples - more information the doubles/triples endorsement is required for drivers to pull 2 trailers (doubles) or 3 trailers (triples) connected to a single power unit. there are 20 questions on this test, and 16 correct answers are required to pass., doubles / triples practice test 1, doubles / triples practice test 2, doubles / triples practice test 3, passenger - more information bus drivers must have a commercial driver's license with a passenger endorsement in order to operate a vehicle which seats 16 or more, including the driver. there are 20 questions on this test, and 16 correct answers are required to pass., passenger practice test 1, passenger practice test 2, passenger practice test 3, passenger practice test 4, school bus - more information school bus endorsement is required for any driver who operates a school bus. after the permit tests the training can be only completed by a local school district. there are 20 questions on this test, and 16 correct answers are required to pass., school bus practice test 1, school bus practice test 2, school bus practice test 3, school bus practice test 4, pre trip - more information the pre-trip exam is an oral exam where you are expected to check the vehicle parts to insure it is safe for road use. the amount of parts you need to check increase with the size of the vehicle, and by type of vehicle., pre trip practice test 1, pre trip practice test 2, pre trip practice test 3, free pre-trip videos - more information the pre-trip exam is an oral exam where you are expected to check the vehicle parts to insure it is safe for road use. the amount of parts you need to check increase with the size of the vehicle, and by type of vehicle., engine compartment pretrip video, inside cab pretrip video, rear of tractor pretrip video, exterior light pretrip video, complete trailer pretrip video.

MO CDL General Knowledge Exam Simulator 2024

Help alleviate any anxiety you may feel about taking the Missouri CDL exam with our new MO CDL General Knowledge Practice Test Simulator. This test features 50 carefully crafted, multiple choice questions based on the information found in the official Missouri CDL Manual, which is the same resource used for the real CDL test. You’ll find practice questions on subjects ranging from basic vehicle control to inspections to drowsy driving to winter driving to speed control and much more.

Are there common medicines for colds that can make you sleepy when driving? What is a hazardous materials placard? You will need to know the answers to questions like these to pass this practice test successfully. A passing score is 80% or higher. We have included several features to help you become familiar with the test content, including a Missed Questions Bank and a progress tracker that lets you know how you are doing as you proceed through the test.

Missouri features a lot of various terrain types from hills in the Ozarks to the streets of St. Louis. This practice test will help ensure you have the knowledge to drive safely on the state’s roadways. Take the practice test now to start preparing the state CDL exam and to become a commercial driver in the “Show Me” state.

Missouri CDL General Knowledge Overview:

Get the latest (2024) official MO CDL Manual.

Select Another MO CDL Practice Test

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• practice permit test
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Missouri CDL Passenger Vehicles Practice Test (MO) 2024

For those who value speed and accuracy! A Missouri CDL practice test that follows the same format as the real passenger test!

• 20 Questions
• 80% Passing Score
• 4 Mistakes Allowed

Missouri CDL Test Facts

• Questions: 50
• Correct answers to pass: 40
• Passing score: 80%
• Test locations: Department of Revenue (DOR) Offices
• Test languages: English, Spanish
• Based upon: Missouri CDL Manual

Do you know which DMV written tests you will need to drive a passenger vehicle commercially in Missouri? The good news is that while some aspects of the assessment process for different types of passenger vehicle operator can be a little confusing, the pool of material used for the actual P endorsement passenger permit test is the same across the state. Whether you take the exam in St. Louis, Branson or Kansas City, the questions you are asked will be based on the same information and you can prepare to answer them correctly with this CDL passenger vehicles practice test for Missouri drivers. When you have dealt with any endorsement exams you need to take prior to the MO CDL passenger test, we recommend using this DPS passenger practice test on a daily basis alongside the appropriate information in the study guide. For most passenger vehicle drivers, this is the final DMV permit test to pass before commencing practical driving lessons. You will only require further qualifications beyond a passenger endorsement if you aim to use your commercial license to drive a school bus. This line of work demands an additional School Bus endorsement, which builds on much of the general passenger transportation rules and regulations from the Passenger Vehicles endorsement, with specific reference to school children and school bus operation. Our CDL Missouri practice test for school bus drivers can help you study for the school bus permit test, if you wish to take your driving career in this direction. It will be necessary to acquire other endorsements prior to the Missouri passenger permit, if you hope to drive any vehicle larger than a Class C taxi. Most passenger vehicles such as school buses and city buses which carry more than 12 to 15 passengers qualify as Class B, which means they operate with an air brake system. Applicants hoping to work with a vehicle of this size should use our CDL Class B practice test MO air brakes quiz to study for the Air Brakes permit test, following the CDL general knowledge test but before the Passenger Vehicles exam. Where the general knowledge exam itself is concerned, the ePermitTest.com Missouri CDL practice test general knowledge quiz is the only tool you should be using to reinforce the general knowledge material in the handbook. In very rare instances, some passenger vehicle drivers may also need to apply for a Combination Vehicles endorsement before using this Missouri passenger practice test 2024 quiz to study P endorsement material. This would only be necessary for drivers of very large Class A passenger vehicles such as articulated city buses that use two separate carriages. When you are certain that the passenger vehicles test MO exam is the next assessment on your list, start working our passenger drivers permit practice test into your study plan. The best course of action is to split your time relatively evenly between reading about pre and post-trip vehicle inspection, driver safety, evacuation, destination announcements and the other key passenger permit test topics in the handbook and answering questions which target these topics with our Missouri passenger endorsement practice test. This will give you the opportunity to check your understanding of the information is sound, before you progress to the next sub-topic. Without a DMV CDL practice test Missouri quiz to guide your studies, you may not notice misunderstandings or absent knowledge until you are sitting the real exam and the DMV test office. If you want to make sure you do not have to re-sit the assessment, start using our practice test for passenger drivers today!

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Free Missouri CDL General Knowledge Test (MO)

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

About this test

By practicing questions written like those you will find on the Missouri CDL test, you will be fully prepared to pass your CDL exam with flying colors.

Set aside some time in a calm environment to go through these 50 questions as many times as you need until you get a passing score, as they are based directly on questions included in the Missouri Commercial Driver License Manual, and cover a wide range of topics you’ll need to know from emergency procedures to braking techniques. Good luck, practice makes perfect, and drive safely!

Enhance your preparation with our comprehensive General Knowledge test collection , tailored to cover all key topics of the CDL exam. For a complete understanding of the expenses involved, check out our guide on CDL license cost , and for a step-by-step guide to getting your CDL, visit our CDL license guide .

What to expect on the actual MO CDL exam

correct answers to pass

passing score

Helpful links

MO DMV website

Official Missouri CDL manual (2024)

More MO CDL General Knowledge Resources

• MO CDL General Knowledge Test
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• MO CDL General Knowledge Test 13
• MO CDL General Knowledge Marathon
• MO CDL General Knowledge Exam Simulator

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FREE CDL Class B Driving Test Online | Missouri 2024

Train for FREE online with our Missouri class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a MO CDL class B permit in 2021, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class B requirements may vary from state to state.

1 . When driving a truck requiring a CDL:

2 . a lane change:, 3 . which of the following groups of people is not covered by move over laws, 4 . header boards:, 5 . when transporting cargo, drivers must check the securement of the cargo every:, 6 . a pre-trip inspection should include:, 7 . without engine oil:.

See the exact questions that will be on the 2024 Missouri DMV exam.

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2024 Missouri | Frequently Asked Questions

Missouri 1: what defines a cdl class a license, missouri 2: which vehicles can be operated using a class a cdl license, missouri 3: what prerequisites are needed for obtaining a class a cdl license, missouri 4: how old must i be to qualify for a class a cdl license, missouri 5: are specific endorsements required for a class a cdl license, missouri 6: what does the class a cdl skills test encompass, missouri 7: are there any limitations imposed on class a cdl license holders, missouri 8: is it possible to take the written class a cdl test in languages besides english, missouri 9: can i request accommodations for the class a cdl written test due to disability, missouri 10: what's the process if i don't pass the class a cdl written test can i retake it, wait, before you go.

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