200+ Free Missouri CDL Combination Practice Questions
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Key Facts: Missouri CDL Combination Exam
20
Questions on Missouri Combination Vehicle written examination
Missouri Commercial Driver License Manual Section 14
80%
Minimum score on each Missouri CDL written exam and federal CDL knowledge test
Missouri CDL Manual Section 14 and 49 CFR 383.135
$25
Missouri CDL Written Test Fee listed in the CDL manual
Missouri Commercial Driver License Manual Section 14
$5
Missouri CLP fee for 6 months (180 days) or less listed in the CDL manual
Missouri Commercial Driver License Manual Section 14
14 days
Minimum Missouri CLP holding period before CDL skills testing
Missouri DOR CDL Testing and CLP FAQs
Missouri Class A CDL applicants must pass the Combination Vehicle written examination when seeking combination-vehicle privileges. Missouri lists the test as 20 questions, charges a $25 CDL Written Test Fee, requires 80% on each written exam, and requires a CLP to be held at least 14 days before skills testing. Study Missouri CDL Manual Section 6: fifth wheel and kingpin coupling, tug and visual lock checks, trailer height, air/electric lines, glad hands, landing gear, trailer brakes, off-tracking, rollover, backing, trailer skids, jackknife recovery, and safe speed and space management. Federal CDL rules also require at least 80% on knowledge tests and prevent Group A CLP/CDL issuance if the combination portion is failed.
Sample Missouri CDL Combination Practice Questions
Try these sample questions to test your Missouri CDL Combination exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 200+ question experience with AI tutoring.
1How many questions does Missouri list for the CDL Combination Vehicle written exam?
2What minimum score is required on Missouri CDL written exams?
3A failed combination-vehicle knowledge test prevents issuance of what federal credential?
4A Class A combination generally has GCWR of 26,001 pounds or more when the towed unit is over what GVWR?
5How long must a Missouri CLP be held before CDL skills testing?
6Who administers Missouri CDL written examinations?
7What CDL Written Test Fee is listed in Missouri CDL Manual Section 14?
8What Missouri CLP fee is listed for 6 months or 180 days or less?
9Which Missouri manual section is the main study source for Combination Vehicles?
10Which statement about Missouri commercial license examinations is listed in the manual?
About the Missouri CDL Combination Exam
The Missouri CDL Combination Vehicles Test is the written knowledge exam for drivers seeking Class A commercial driving privileges in qualifying tractor-trailer and other combination vehicles. Missouri CDL Manual Section 6 covers driving combinations safely, combination vehicle air brakes, ABS, coupling and uncoupling, and inspecting combinations. Missouri Section 14 lists the Combination Vehicle written exam as 20 questions and requires 80% on each written exam, while federal Part 383 requires the same minimum passing score and bars Group A CLP/CDL issuance after failing the combination portion. Key study areas include fifth wheel and kingpin coupling, trailer height, tug and visual checks, air and electrical lines, glad hands, landing gear, trailer brakes, off-tracking, rollover prevention, safe turns, backing, trailer skids, jackknife recovery, speed, and space management.
Assessment
Written CDL knowledge examination for Class A combination applicants; Missouri Section 14 lists Combination Vehicle as 20 questions, with General Knowledge, Air Brake, and endorsement tests required when applicable.
Time Limit
Missouri publishes the Combination Vehicle written exam question count but does not publish a separate time limit in the CDL manual
Passing Score
80% on each CDL written examination; 49 CFR 383.135 also requires at least 80% on CDL knowledge tests
Exam Fee
$25 CDL Written Test Fee; Missouri CLP fee is listed as $5 for 6 months (180 days) or less, plus office processing fees when a document is issued (Missouri Department of Revenue and Missouri State Highway Patrol testing locations)
Missouri CDL Combination Exam Content Outline
Driving Combination Vehicles Safely
Rollover risk, high center of gravity, rearward amplification, steering smoothly, following distance, railroad crossings, off-tracking, wide turns, backing setup, mirrors, pull-ups, trailer skids, and jackknife recovery.
Combination Vehicle Air Brakes and ABS
Trailer hand valve, foot brake use, tractor protection valve, red trailer air supply control, service and emergency lines, glad hands, crossed-line faults, spring brakes, trailer brake tests, ABS behavior, and ABS malfunction response.
Coupling and Uncoupling
Fifth wheel inspection, lubrication, jaws, sliding fifth wheel locks, trailer height, kingpin alignment, air-line connection, trailer brake checks, backing under, tug test, visual inspection, electrical cord, landing gear, chocks, and safe uncoupling.
Inspecting Combination Vehicles
Lower and upper fifth wheel, locking jaws around the kingpin shank, release arm and safety latch, no visible fifth wheel gap, air and electrical lines, sliding fifth wheel, landing gear, power-gear leaks, and brake checks.
Missouri CDL and FMCSA Rules
Missouri Combination Vehicle 20-question written exam, 80% passing score, written-test and CLP fees, 14-day CLP hold, English-only commercial exams, Highway Patrol testing locations, Group A rules, and fifth-wheel tractor-trailer restriction context.
How to Pass the Missouri CDL Combination Exam
What You Need to Know
- Passing score: 80% on each CDL written examination; 49 CFR 383.135 also requires at least 80% on CDL knowledge tests
- Assessment: Written CDL knowledge examination for Class A combination applicants; Missouri Section 14 lists Combination Vehicle as 20 questions, with General Knowledge, Air Brake, and endorsement tests required when applicable.
- Time limit: Missouri publishes the Combination Vehicle written exam question count but does not publish a separate time limit in the CDL manual
- Exam fee: $25 CDL Written Test Fee; Missouri CLP fee is listed as $5 for 6 months (180 days) or less, plus office processing fees when a document is issued
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
Missouri CDL Combination Study Tips from Top Performers
Frequently Asked Questions
Who needs the Missouri CDL Combination Vehicles test?
Drivers seeking Missouri Class A privileges for qualifying combination vehicles generally need the Combination Vehicle written examination, along with General Knowledge and any applicable Air Brake or endorsement tests.
How many questions are on the Missouri Combination Vehicle written exam?
Missouri CDL Manual Section 14 lists the Combination Vehicle written examination as 20 questions.
What score do I need to pass?
Missouri says applicants must score 80% on each written exam. Federal 49 CFR 383.135 also requires at least 80% correct on each CDL knowledge test and says failing the combination portion prevents Group A CLP/CDL issuance.
What topics are on the Missouri combination test?
Study Missouri CDL Manual Section 6: driving combinations safely, rollover and off-tracking, backing, trailer skids and jackknife recovery, trailer air lines and brakes, ABS, fifth wheel and kingpin coupling, landing gear, uncoupling, and combination inspection.
How much does the Missouri CDL combination written test cost?
Missouri Section 14 lists a CDL Written Test Fee of $25. It also lists a CLP fee of $5 for 6 months (180 days) or less, plus office processing fees when a document is issued.
How long must I hold a Missouri CLP before skills testing?
Missouri DOR CDL/CLP guidance says the CLP must be held for training purposes for at least 14 days before CDL skills testing.