Free Kansas CDL practice test online
Take a free Kansas CDL practice exam online with clear explanations—no sign-up. Coverage includes general knowledge, vehicle systems, combination vehicles, cargo, and endorsements. Then verify current requirements with Kansas Division of Vehicles.
CDL knowledge tests are federally regulated, so the passing score in Kansas is the same as everywhere else: 80% correct on every knowledge test. You must also hold a commercial learner’s permit for 14 days before the skills test.
New to the knowledge test? CDL endorsements explained · One-week study plan
Requirements before you test
Kansas CDL test requirements
Commercial licensing is largely federal. Any figure above credited to a 49 CFR section applies in every state — see 49 CFR 383.135(a)(1) and 49 CFR 383.25(e). A figure credited to Kansas Division of Vehicles is Kansas’s own, and may be stricter than the federal floor. Test length, fees, and scheduling are set by Kansas Division of Vehicles (official source).
Entry-Level Driver Training comes first
Since February 7, 2022, a new Class A or Class B CDL, a class upgrade, or a first passenger, school bus, or hazardous materials endorsement requires training from a provider on the FMCSA Training Provider Registry (49 CFR 380.600). Practice questions are study material and do not satisfy that requirement.
FMCSA Training Provider RegistryYou need a Kansas licence first
A commercial learner’s permit only counts if you already hold an ordinary licence from the same state (49 CFR 383.25(a)(2)). The Kansas non-commercial knowledge test runs 25 questions and needs 20 correct, with permits issued from age 14.
Kansas permit practice testWhat you will practice
Build coverage topic by topic.
Each question carries a topic, difficulty, explanation, and source section so your review has context.
Sample questions
5 Kansas CDL practice questions
Try these Kansas sample questions now — each shows the correct answer with a plain-language explanation and a source section. The full 600-question bank is in the practice run.
1. Doubles and triples need special care primarily because:
- AThey have no brakes on dollies
- BThey are always more stable than singles
- More things can go wrong and they are less stable than other CMVs
- DThey cannot use turn signals
Answer: More things can go wrong and they are less stable than other CMVs. Extra couplings, air lines, and rearward amplification raise the consequences of small mistakes.
Source: Commercial Driver License Manual — Doubles and triples — overview
2. By color convention, the emergency (supply) glad-hand line is usually:
- Red
- BGreen
- CYellow
- DBlue
Answer: Red. Red is typically the emergency/supply line; blue is the service/control line.
Source: Commercial Driver License Manual — Combination vehicles — air lines
3. Hold the steering wheel firmly with hands:
- AIn your lap at highway speed
- BOnly when turning
- CStacked at the top of the wheel
- On opposite sides of the wheel
Answer: On opposite sides of the wheel. A firm grip keeps a curb or pothole from yanking the wheel out of your hands.
Source: Commercial Driver License Manual — Basic control — steering
4. If an oncoming driver drifts into your lane, the best first move is usually:
- AStraight at them while braking only
- BOnto the centerline
- CTo your left into opposing traffic
- To your right
Answer: To your right. A move right is best because the other driver’s natural response is often to return to their own lane.
Source: Commercial Driver License Manual — Driving emergencies — where to steer
5. Overdriving your headlights means:
- ALeaving the headlights on during the day
- BFollowing too closely at night
- CUsing high beams in fog
- Driving so fast you cannot stop within the lit distance ahead
Answer: Driving so fast you cannot stop within the lit distance ahead. If your stopping distance exceeds the distance your headlights illuminate, a hazard will appear too late to avoid.
Source: Commercial Driver License Manual — Night driving — speed and visibility
CDL knowledge areas
Classes and endorsements, organized.
Each area below scopes the reviewed question bank to one knowledge test. The material is federal, so it applies in Kansas just like everywhere else — the endorsement guide explains how the codes fit together.
The foundation for commercial driving: inspections, space, speed, communication, hazards, and safe operation.
- Pre-trip inspection
- Space and speed management
- Railroad crossings
- Emergency procedures
Understand air-brake components, inspections, warning devices, stopping distance, and controlled braking.
- Dual air systems
- Low-air warnings
- Brake lag and fade
- Applied-leak and static checks
Prepare for safe coupling, inspection, turning, backing, and handling of tractor-trailer combinations.
- Fifth-wheel inspection
- Coupling and uncoupling
- Off-tracking
- Trailer skid prevention
Study hazard communication, shipping papers, placards, loading rules, parking, and emergency response responsibilities.
- Hazard classes
- Placards and labels
- Shipping papers
- Loading and segregation
Learn how liquid surge, outage, bulkheads, and high centers of gravity change vehicle handling.
- Liquid surge
- Outage requirements
- Smooth braking
- Rollover prevention
Practice converter-dolly inspection, coupling order, rearward amplification, and stability principles.
- Coupling sequence
- Converter dollies
- Rearward amplification
- Space management
Prepare to inspect, load, and operate buses while keeping passengers, aisles, and exits safe.
- Vehicle inspection
- Passenger loading
- Emergency exits
- Prohibited practices
Review student loading, danger zones, mirrors, emergency procedures, and special railroad-crossing duties.
- Danger zones
- Student loading
- Mirror use
- Railroad crossings
More midwest practice
Nearby CDL practice tests
Jump to another midwest state hub, or browse every jurisdiction.
Common questions
What this practice can—and cannot—tell you.