Missouri · CDL

Missouri CDL Practice Test

The Missouri CDL knowledge test is administered by Missouri Department of Revenue. This free practice test covers the 10 areas the Missouri Commercial Driver License Manual teaches, from missouri cdl classes permits testing and driver qualifications to hazardous materials and school bus safety, with 100 questions written for Missouri and every answer explained. Pick 25, 50, or 100 questions and start; there is no sign-up.

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Free practice test

Take the Missouri CDL practice test

The Missouri bank holds 100 questions written for the Missouri Commercial Driver License Manual (Version 4.0 CDL Drivers Manual), 1 of them illustrated with a sign, signal, marking, or road scene. Choose a Quick check of 25, a Practice run of 50, or the Full challenge of 100 on the next screen, then choose coaching mode, which explains every answer as you go, or exam mode, which holds the explanations until the end and still shows your running score. It is free, there is no sign-up, and a test in progress is saved on this device.

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Sample questions

Six questions from the Missouri bank, with the rule behind each answer

Sample 1 · Missouri Cdl Classes Permits Testing And Driver Qualifications

During a Columbia commercial-licensing review, a Missouri driver will pull a 12,200-pound-GVWR trailer with a tractor in a combination rated at 33,600 pounds. Which license class matches those ratings?

  1. For the Columbia licensing decision: class A, because the combination reaches 26,001 pounds and the towed unit is over 10,000 poundsCorrect
  2. For the Columbia licensing decision: class B, because the tractor and trailer are evaluated as separate vehicles
  3. For the Columbia licensing decision: class C, because a trailer under 26,001 pounds cannot qualify for Class A
  4. For the Columbia licensing decision: no CDL, because only the trailer rating matters and it is below 26,001 pounds

Why: Class A covers a combination rated at least 26,001 pounds when the towed vehicle or vehicles have a gross vehicle weight rating above 10,000 pounds. That makes "For the Columbia licensing decision: class A, because the combination reaches 26,001 pounds and the towed unit is over 10,000 pounds" the supported result for this situation.

Sample 2 · Speed Space Hazards Weather And Railroad Crossings

On a loaded-vehicle route near Columbia, a sharp curve follows a straight downgrade and the truck is still in a high gear. What should the driver do before entering the turn?

  1. On the route near Columbia: slow to a safe speed and select the proper lower gear before the curve beginsCorrect
  2. On the route near Columbia: enter in the high gear and attempt a downshift at the curve midpoint
  3. On the route near Columbia: accelerate before the curve so momentum replaces gear selection
  4. On the route near Columbia: wait until the trailer leans outward before reducing speed

Why: Before entering a curve, a driver should slow to a safe speed and downshift to the proper gear so some power can help keep the vehicle stable through the turn. That makes "On the route near Columbia: slow to a safe speed and select the proper lower gear before the curve begins" the supported result for this situation.

Sample 3 · Cargo Inspection Weight Balance And Securement

While preparing cargo at a Columbia terminal, a warehouse crew loads and ties down freight before the driver arrives. Which responsibility still belongs to the driver?

  1. For the load leaving Columbia: inspect the load, recognize overload or poor balance, verify securement, preserve visibility, and keep emergency gear accessibleCorrect
  2. For the load leaving Columbia: accept the sealed load without inspection because the loader assumes all legal responsibility
  3. For the load leaving Columbia: check only the shipping address and leave weight and securement to dispatch
  4. For the load leaving Columbia: inspect cargo only after a police officer requests the bill of lading

Why: Even when another person loads the vehicle, the driver remains responsible for inspection, overload and balance recognition, securement, clear visibility, and access to emergency equipment. That makes "For the load leaving Columbia: inspect the load, recognize overload or poor balance, verify securement, preserve visibility, and keep emergency gear accessible" the supported result for this situation.

Sample 4 · Passenger Vehicle Inspection Loading And Operation

Before passenger service begins in Columbia, the previous bus driver's report lists a cracked mirror bracket. When may the next driver sign that prior report?

  1. For the Columbia passenger run: only after carrying passengers for one complete route without incident
  2. For the Columbia passenger run: whenever dispatch says the schedule is too tight for a repair decision
  3. For the Columbia passenger run: after the defect is certified as repaired or certified as not requiring repairCorrect
  4. For the Columbia passenger run: immediately upon receiving the keys, before looking at the listed defect

Why: A bus driver signs the previous driver's inspection report only after listed defects have been certified as repaired or certified as not requiring repair. That makes "For the Columbia passenger run: after the defect is certified as repaired or certified as not requiring repair" the supported result for this situation.

Sample 5 · Combination Vehicle Control Coupling And Inspection

While readying a tractor-trailer near Columbia, freight in a semitrailer is concentrated high and along its left wall. How should it be rearranged to reduce rollover risk?

  1. For the combination based near Columbia: keep all weight at the left wall to counter right-hand curves
  2. For the combination based near Columbia: move it entirely behind the rear axle without regard to axle limits
  3. For the combination based near Columbia: move it lower, closer to the center, and distribute it more evenlyCorrect
  4. For the combination based near Columbia: raise it farther so the trailer suspension can absorb more side force

Why: Combination cargo should be kept low, centered, and distributed because a high or side-biased center of gravity increases rollover risk. That makes "For the combination based near Columbia: move it lower, closer to the center, and distribute it more evenly" the supported result for this situation.

Sample 6 · Hazardous Materials And School Bus Safety

Before regulated transport begins in Columbia, a hazardous-material package leaks and its preparation does not match the shipping papers. What responsibility does the driver have before accepting it?

  1. For the regulated duty in Columbia: accept it whenever the carrier has already issued a route assignment
  2. For the regulated duty in Columbia: remove the label and transport the leaking package as ordinary freight
  3. For the regulated duty in Columbia: reject the package and accept only properly prepared, nonleaking material while maintaining the required papers and placardsCorrect
  4. For the regulated duty in Columbia: load it near the rear door and let the consignee correct the package

Why: The hazardous-material driver rejects leaking or improperly prepared packages, maintains required placards and papers, and transports the shipment safely after shipper and carrier checks. That makes "For the regulated duty in Columbia: reject the package and accept only properly prepared, nonleaking material while maintaining the required papers and placards" the supported result for this situation.

What is on the test

The 10 topics the Missouri CDL practice test covers

These are Missouri's own topic areas, from missouri cdl classes permits testing and driver qualifications to hazardous materials and school bus safety, each with 10 questions. Under each one are two questions from the bank, shown without their answers; the practice test explains every one of them.

  1. Missouri Cdl Classes Permits Testing And Driver Qualifications10 questions
    • During a Springfield commercial-licensing review, a straight utility truck has a 27,300-pound GVWR and tows a compressor trailer rated at 7,900 pounds. What CDL class is appropriate?
    • During a Rolla commercial-licensing review, a hotel shuttle is below the Class A and B weight limits and is designed for a driver plus 17 riders. Which CDL classification trigger applies?
  2. Vehicle Inspection Control Visibility And Communication10 questions
    • At a Columbia carrier-yard inspection, excessive steering play is serious enough to make the tractor unsafe. What is the safety reason to hold the vehicle for repair rather than dispatch it?
    • At a Springfield carrier-yard inspection, midway through a delivery, the temperature gauge climbs and the driver notices a new hot odor. How should those clues be treated?
  3. Speed Space Hazards Weather And Railroad Crossings10 questions
    • On a loaded-vehicle route near Springfield, a tractor is preparing for a lane change on I-70. How should the turn signal be used through the maneuver?
    • On a loaded-vehicle route near Rolla, rain has covered the roadway and steering suddenly feels light as the tires begin riding on water. Which assessment is sound?
  4. Emergencies Abs Skids Crashes Fires And Driver Fitness10 questions
    • During an urgent freight response outside Columbia, a truck reaches its selected safe speed on a long downgrade after the driver has chosen a proper low gear. How should the service brakes be cycled?
    • During an urgent freight response outside Springfield, a truck without a safe path around a sudden obstruction must stop as quickly as control allows. How is controlled braking performed?
  5. Cargo Inspection Weight Balance And Securement10 questions
    • While preparing cargo at a Springfield terminal, a newly loaded flatbed begins a 240-mile trip. By what point must the driver make the first en-route cargo and securement check?
    • While preparing cargo at a Rolla terminal, after completing the first 50-mile cargo check, a driver continues without a break. When is another routine check due?
  6. Passenger Vehicle Inspection Loading And Operation10 questions
    • Before passenger service begins in Springfield, an exterior service panel is open and an emergency exit has not latched after inspection. What must happen before the bus moves?
    • Before passenger service begins in Rolla, boxes occupy part of a bus stairwell, one seat is loose, and an emergency-exit indicator does not work. Which evaluation is correct?
  7. Air Brake Components Inspection And Use10 questions
    • During an air-brake evaluation in Columbia, an air-braked truck is parked, operating normally, and then faces a system failure. Which three braking functions are built into the overall system?
    • During an air-brake evaluation in Springfield, system pressure reaches the governor's cut-out setting and later drops toward cut-in. What should the air compressor do?
  8. Combination Vehicle Control Coupling And Inspection10 questions
    • While readying a tractor-trailer near Springfield, a triple combination needs to change lanes. Why must the tractor driver use especially smooth steering inputs?
    • While readying a tractor-trailer near Rolla, a bobtail tractor feels difficult to stop smoothly on a slick surface. What explains that behavior?
  9. Doubles Triples And Tank Vehicle Operation10 questions
    • During a specialized-equipment assignment in Columbia, a doubles driver enters a curve with abrupt steering. Which unit faces the greatest crack-the-whip rollover risk?
    • During a specialized-equipment assignment in Springfield, two semitrailers of different loaded weights will form a twin-trailer combination. Where should the heavier one be placed for better handling?
  10. Hazardous Materials And School Bus Safety10 questions
    • Before regulated transport begins in Springfield, while the hazmat vehicle is moving, where may the driver keep shipping papers so they are readily identifiable and reachable while belted?
    • Before regulated transport begins in Rolla, a shipping paper lists the proper name before the identification number and omits the hazard class. Which ordered basic description is required?
How to prepare

A study plan for the Missouri CDL knowledge test

1

Find out where you stand

Take a Quick check of 25 in coaching mode. Read each explanation, including the ones you got right; it tells you the rule Missouri tests, not just the answer.

2

Study the topics you missed

Your account's Study tab ranks the 10 topics by your results. Read that chapter of the Missouri Commercial Driver License Manual, then take another Quick check to confirm the gap has closed.

3

Rehearse the real thing

Take the Full challenge of 100 in exam mode. Aim for 80 percent or better twice in a row; at that point you are answering from the rules, not from memory of the questions.

Questions

Missouri CDL practice test questions

Is this the official Missouri CDL knowledge test?

No. DMV Exam Pass is an independent study service and is not affiliated with Missouri Department of Revenue. The questions are written in the style of the exam to prepare you for it; the official test is taken with the agency.

What does the Missouri CDL practice test cover?

The 100 questions are spread evenly across 10 topics: Missouri Cdl Classes Permits Testing And Driver Qualifications, Vehicle Inspection Control Visibility And Communication, Speed Space Hazards Weather And Railroad Crossings, Emergencies Abs Skids Crashes Fires And Driver Fitness, Cargo Inspection Weight Balance And Securement, Passenger Vehicle Inspection Loading And Operation, Air Brake Components Inspection And Use, Combination Vehicle Control Coupling And Inspection, Doubles Triples And Tank Vehicle Operation, and Hazardous Materials And School Bus Safety. Every test you take draws from all of them, so a weak area shows up quickly.

How many questions are in the practice test, and how long does it take?

The Missouri bank holds 100 questions. A Quick check of 25 takes about ten minutes, a Practice run of 50 about twenty, and the Full challenge of 100 about forty. You can pause any time.

Are these the real questions from the Missouri exam?

No. Nobody outside the agency has the real questions, and we do not use, claim, or advertise leaked or exact exam questions. These are independently written questions that test the same rules, so what you learn transfers to whatever the real test asks.

Which handbook should I study for the Missouri CDL knowledge test?

The Missouri Commercial Driver License Manual (Version 4.0 CDL Drivers Manual), published by Missouri Department of Revenue. Every question here is written for it, and each explanation names the rule, so when you miss a question you know which chapter to read.

What is the difference between coaching mode and exam mode?

Coaching mode shows whether each answer was right, and why, before you move on; it is for learning. Exam mode holds the explanations and the correct choices until the end and still shows your running score; it is for checking readiness. Both draw from the same bank, and scoring happens on our servers, so no answer key is loaded in your browser.

Does the practice test include road signs and pictures?

Yes. 1 of the 100 questions are illustrated with a sign, signal, marking, or road scene, the way the CDL knowledge test presents them.

Is the Missouri practice test free, and do I need an account?

It is free, with no sign-up. An optional account saves your progress across devices and shows which topics need work.

Can I pause and come back later?

Yes. A test in progress is saved on this device and offered again when you return. With an account, it is saved to your account as well, so you can continue on another device.

What score should I aim for before test day?

Aim for 80 percent or better on a Full challenge in exam mode, more than once. The official passing score is set by the agency; scoring consistently above 80 here means you are answering from the rules rather than from luck.