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200+ Free FL CDL Combination Practice Questions

Pass your Florida CDL Combination Vehicles Test exam on the first try — instant access, no signup required.

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Why visually inspect after a tug test?

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to track
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Key Facts: FL CDL Combination Exam

26,001+ lb

Florida/Federal Class A combination threshold when towing over 10,000 lb

FLHSMV CDL page; 49 CFR §383.91

80%

Minimum correct score required for CDL knowledge tests

49 CFR §383.135

$75

FLHSMV original/renewal Commercial Driver License fee

FLHSMV Fees

$10

FLHSMV knowledge retest fee

FLHSMV Fees

Study Florida CDL Manual Section 6 for combination-vehicle safety: off-tracking and wide turns, rollover prevention, backing, trailer skids and jackknife recovery, trailer air supply and glad hands, fifth wheel and kingpin coupling, tug and visual checks, landing gear, and combination inspection. FLHSMV lists a $75 original/renewal CDL fee, $10 knowledge retest, and $7 endorsement fee. Federal CDL rules require at least 80% correct on each knowledge test, and a failed combination-vehicle knowledge test prevents Group A CLP/CDL issuance.

Sample FL CDL Combination Practice Questions

Try these sample questions to test your FL CDL Combination exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 200+ question experience with AI tutoring.

1Which Florida CDL applicant must take the Combination Vehicles knowledge test?
A.A Class A applicant operating qualifying truck or truck combinations
B.A straight truck with no trailer
C.A passenger bus only
D.A motorcycle endorsement vehicle
Explanation: FLHSMV lists Combination Vehicles as a required knowledge test for Class A applicants.
2What is a combination vehicle?
A.A straight truck with no trailer
B.A passenger bus only
C.A motorcycle endorsement vehicle
D.A truck or tractor pulling one or more trailers
Explanation: Florida CDL Manual Section 6 covers trucks or tractors pulling trailers as combination vehicles.
3For a Florida Class A CDL, the towed unit generally must exceed what GVWR when the combination is at least 26,001 pounds?
A.8,000 pounds
B.15,000 pounds
C.10,000 pounds
D.5,000 pounds
Explanation: FLHSMV and FMCSA Group A rules use a towed-unit threshold over 10,000 pounds GVWR.
4Which Florida CDL manual section covers combination vehicles?
A.Section 8
B.Section 6
C.Section 3
D.Section 5 only
Explanation: Section 6 is titled Combination Vehicles and covers safe driving, air-brake controls, coupling, uncoupling, and inspection.
5What is off-tracking?
A.The trailer rear wheels follow a shorter inside path than the tractor front wheels
B.The trailer ABS lamp stays on
C.The fifth wheel unlocks in a turn
D.The engine loses power
Explanation: Off-tracking is why trailer wheels can strike curbs or objects even after the tractor clears.
6Why should you slow before entering a curve with a combination vehicle?
A.Speed up and make a sharp correction
B.Use the trailer hand valve as the main control
C.To shift cargo higher
D.To reduce rollover and skid risk before steering forces build
Explanation: Combination vehicles can roll over at speeds that may feel safe in smaller vehicles.
7How should cargo be placed to help reduce rollover risk?
A.Loose so it can settle
B.All against the rear doors
C.Low and centered
D.High and to one side
Explanation: A low, centered load lowers rollover risk and helps keep the trailer balanced.
8Which control should be used for normal stopping?
A.The fifth wheel release handle
B.The foot brake pedal
C.Use the trailer hand valve as the main control
D.Use the parking brake for normal moving stops
Explanation: The foot brake applies the service brakes through the combination for normal stops.
9What color is commonly used for the trailer emergency or supply glad hand?
A.Red
B.Blue
C.Green
D.White
Explanation: The red line is the emergency or supply line for the trailer air system.
10What color is commonly used for the trailer service glad hand?
A.Red
B.Yellow
C.Black
D.Blue
Explanation: The blue service line carries service-brake control air to the trailer.

About the FL CDL Combination Exam

The Florida CDL Combination Vehicles Test is the written knowledge test for drivers seeking Class A commercial driving privileges in Florida. FLHSMV lists the Combination Vehicles Test as required for Class A applicants who operate trucks or truck combinations weighing 26,001 pounds or more while towing a unit over 10,000 pounds. The official Florida Commercial Driver License Manual Section 6 covers rollover risk, center of gravity, off-tracking, low-clearance railroad crossings, backing, trailer skids, jackknife recovery, trailer hand valves, service and emergency air lines, glad hands, tractor protection valves, trailer ABS, coupling and uncoupling, fifth wheel and kingpin checks, landing gear, and combination-vehicle inspection. FMCSA Part 383 supplies the federal Group A classification, required combination-vehicle knowledge areas, and 80% knowledge-test passing standard.

Assessment

Multiple-choice CDL knowledge test for Florida Class A applicants; Florida CDL Manual Section 6 covers driving combinations, combination air-brake controls, ABS, coupling and uncoupling, and inspecting combinations.

Time Limit

Set by FLHSMV testing administration; no separate public time limit found in official sources

Passing Score

80% minimum on CDL knowledge tests under 49 CFR §383.135

Exam Fee

$75 original/renewal Commercial Driver License; $10 knowledge retest; $7 endorsement fee (Florida Department of Highway Safety and Motor Vehicles (FLHSMV))

FL CDL Combination Exam Content Outline

Core section

Driving Combination Vehicles Safely

Rollover risk, high center of gravity, steering response, rearward amplification, off-tracking, wide turns, low-clearance railroad crossings, backing, and space management.

Core section

Combination Vehicle Air Brakes

Trailer hand valve, tractor protection valve, trailer air supply control, service and emergency lines, glad hands, crossed-line faults, trailer ABS, and trailer brake tests.

Core section

Coupling and Uncoupling

Fifth wheel plate and jaws, kingpin, trailer height, high coupling, tug test, visual inspection, air/electrical line connection, landing gear, chocks, and safe release sequence.

Core section

Inspecting Combination Vehicles

Coupling area, trailer frame, suspension, brakes, tires, lights, reflectors, landing gear, cargo doors, load security, and post-coupling final checks.

Licensing section

Florida CDL and FMCSA Rules

Florida Class A knowledge-test requirements, CDL fees, ELDT triggers, FMCSA state agency resources, Group A vehicle rules, and federal 80% knowledge-test passing standard.

How to Pass the FL CDL Combination Exam

What You Need to Know

  • Passing score: 80% minimum on CDL knowledge tests under 49 CFR §383.135
  • Assessment: Multiple-choice CDL knowledge test for Florida Class A applicants; Florida CDL Manual Section 6 covers driving combinations, combination air-brake controls, ABS, coupling and uncoupling, and inspecting combinations.
  • Time limit: Set by FLHSMV testing administration; no separate public time limit found in official sources
  • Exam fee: $75 original/renewal Commercial Driver License; $10 knowledge retest; $7 endorsement fee

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

FL CDL Combination Study Tips from Top Performers

1Start with Florida CDL Manual Section 6 and write a coupling checklist: fifth wheel, trailer height, kingpin, tug test, visual lock check, air/electric lines, brake tests, and landing gear.
2Memorize red emergency/supply and blue service glad-hand functions, then practice crossed-line and air-leak scenarios.
3Drill off-tracking, wide right turns, rearward amplification, rollover risk, backing to the driver side, and low-clearance railroad crossing decisions.
4Treat air brakes in Section 6 as combination-specific; study full air-brake depth separately if your Class A vehicle has air brakes.
5Review FLHSMV Class A requirements, ELDT triggers, fees, and the FMCSA 80% passing standard before test day.

Frequently Asked Questions

Who needs the Florida CDL Combination Vehicles test?

Florida Class A CDL applicants need the Combination Vehicles knowledge test. FLHSMV describes Class A as trucks or truck combinations weighing 26,001 pounds or more while towing a vehicle or unit over 10,000 pounds.

What score do I need to pass?

Federal CDL rules require at least 80% correct on knowledge tests. 49 CFR §383.135 also states that an applicant who fails the combination-vehicle portion must not be issued a Group A CLP or CDL.

What topics are on the Florida combination test?

Florida CDL Manual Section 6 covers driving combinations safely, rollover risk, off-tracking, railroad crossings, backing, trailer skids, trailer air-brake controls, tractor protection valves, glad hands, ABS, coupling and uncoupling, fifth wheel and kingpin checks, landing gear, and inspecting combinations.

How much does Florida CDL testing cost?

FLHSMV lists a $75 original or renewal Commercial Driver License fee, a $10 knowledge retest fee, a $20 skill retest fee, and a $7 endorsement fee. A $6.25 tax collector service fee may apply to some credential transactions.