FL CDL Combination study plan

FL CDL Combination · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Combination Vehicles (CDL Class A knowledge area)

Define combination vehicle terminology (tractor, semi-trailer, kingpin, fifth wheel, landing gear, glad hands, trailer hand valve, bobtail) in your own words
Identify the three primary braking systems on a combination vehicle (service, parking, emergency) and explain how each is activated
Describe the coupling sequence for a tractor-semi-trailer in correct order, from pre-trip inspection to final tug test
Explain the uncoupling sequence, including landing gear deployment and air line disconnection order

Write a one-page coupling and uncoupling checklist from memory, then verify it against your state CDL manual and correct any missed steps.

Week 2

Explain the purpose and operation of the trailer hand valve and why it must not be used for parking
Describe how glad hands connect and the consequences of crossing the emergency and service lines
Identify the components of the air brake system on a combination vehicle, including the tractor protection valve and relay valve
Perform a static air brake test sequence (leak test, tractor protection valve test, emergency line test) and record the results

Complete a written air brake inspection and leak test procedure with expected pressure readings and pass/fail criteria.

Week 3

Describe the effect of trailer length, weight, and axle configuration on off-tracking during a turn
Explain how to execute a right turn without hitting the curb or an adjacent vehicle when pulling a trailer
Identify the causes of trailer sway and the correct corrective actions (steering, throttle, brake use)
Describe safe following distance and speed management for a combination vehicle under loaded and empty conditions

Create a diagram of a right turn showing the path of the tractor rear axles and trailer axles, with a written explanation of off-tracking.

Week 4

Explain how weight distribution affects steering axle, drive axle, and trailer axle loads
Describe the causes and dangers of a jackknife, including both drive-axle and trailer jackknife
Identify the conditions that lead to a rollover and the defensive driving techniques that prevent it
Explain how to recover from a skid in a combination vehicle, including the role of the trailer hand valve

Score at least 85% on a 25-question practice test covering coupling, braking, and skid control.

Week 5

Describe the pre-trip inspection items specific to a combination vehicle, including the fifth wheel, kingpin, and air lines
Explain the difference between a sliding fifth wheel and a sliding tandem, and when to adjust each
Identify the safety checks for the trailer landing gear, mud flaps, and rear impact guard
Describe the procedure for inspecting and adjusting the trailer brakes (slack adjusters) within legal limits

Produce a pre-trip inspection checklist for a combination vehicle with at least 20 items and the specific defect to look for on each.

Week 6

Explain the rules for driving on grades, including downshifting before a descent and proper use of engine brakes
Describe the procedure for parking a combination vehicle on a grade, including chocking and brake set
Identify the hazards of railroad crossings and the correct crossing procedure for a combination vehicle
Explain how to handle a tire failure or blowout at highway speed in a loaded combination vehicle

Write a grade descent and parking procedure for a 6% downgrade, including gear selection, speed control, and brake use.

Week 7

Review and resolve all missed questions from previous practice tests, explaining why the correct answer is correct
Describe the inspection and use of emergency equipment (triangles, fire extinguisher) for a combination vehicle
Explain the rules for transporting hazardous materials in a combination vehicle, if applicable to your endorsement goals
Describe the process for reporting a crash and securing the scene

Complete a full-length practice exam (50 questions) with a score of at least 90%, and write explanations for every missed question.

Week 8

Review the highest-risk topics: coupling, air brakes, off-tracking, skid control, and weight distribution
Practice explaining out loud the coupling and uncoupling procedures as you would during a skills test
Confirm your knowledge of state-specific CDL manual rules and any recent changes
Take a final timed practice exam under test-like conditions

Pass a final 50-question timed practice exam with a score of at least 95%, and complete a one-page summary of key procedures.

Week 2: Can recite the coupling and uncoupling sequences in order without notes, and explain the air brake leak test steps.

Week 4: Score at least 85% on a 25-question practice test covering coupling, braking, and skid control.

Week 6: Complete a pre-trip inspection checklist with at least 20 items and explain grade descent and parking procedures.

Week 8: Score at least 95% on a timed 50-question practice exam and demonstrate verbal explanation of coupling and uncoupling.