Cambodia Heavy Vehicle Driving Test study plan

List every Cambodian road-sign group (warning, prohibition, mandatory, information) and write the meaning of 40 signs from memory without notes.

Recite the right-hand-drive keep-left rules, overtaking prohibitions, and the priority order at unmarked intersections in your own words.

Interpret 15 road-marking descriptions (solid and broken lines, yellow curb lines, pedestrian crossings, bus lanes) and state what action each requires.

Explain the legal meaning of hand signals from traffic police and traffic-light combinations, including flashing amber and arrow phases.

Log every sign you cannot explain confidently in a running error sheet and re-test yourself on them at week's end.

Describe the function and correct operating sequence of clutch, gearbox, retarder, differential lock, and parking brake on a heavy truck.

Walk through a full pre-drive cockpit drill in writing: seat, mirrors, gauges, warning lamps, air-pressure build-up, and brake test.

Explain starting on a gradient, hill-hold technique, and the risks of riding the clutch or overheating brakes on a loaded vehicle.

Outline reversing procedures for a rigid truck and a drawbar trailer, including spotter use, mirror scanning, and blind-spot zones.

Practice or observe low-speed maneuvering (tight turns, roundabout entry, lane-width judgment) and write a short reflection on each maneuver.

Apply traffic-law priority rules to 20 written scenarios (roundabouts, junctions, school zones, railway crossings, emergency vehicles) and justify each answer.

Identify the legal load limits, overhang rules, and permit requirements for heavy vehicles under Cambodian regulations.

Explain load distribution, axle-weight limits, center of gravity, and how poor loading changes braking and cornering behavior.

List the daily inspection items a driver must check (tyres, lights, brakes, fluids, couplings, load restraints) and the defect-reporting process.

Describe how to secure common cargo types with straps, chains, and tarpaulins, and state why each method prevents shift.

Define hazard perception and list the scanning sequence (mirror, ahead, mirror, instrument) used at highway speed.

Identify 15 specific hazards in written driving scenarios (pedestrians, motorcycles filtering, livestock, potholes, monsoon flooding) and state the correct response to each.

Explain following-distance and stopping-distance logic for a loaded truck at 40, 60, and 80 km/h, including wet-road adjustments.

Describe defensive strategies for night driving, rain, fog, and poorly lit rural roads, including use of lights and speed reduction.

Write a personal fatigue and distraction management plan covering phone use, rest breaks, and passenger management.

Explain air-brake system components and the meaning of low-pressure warnings, and describe the correct response to a pressure loss.

Describe engine braking, exhaust brakes, and retarders, and state when each must not be used (wet or slippery surfaces).

Explain brake fade, heat management on long descents, and the gear-selection rule for downgrades.

Calculate stopping distance at three speeds using the standard formula and compare dry versus wet surfaces.

Describe skid causes and recovery for a heavy vehicle, including jackknife risk with trailers and load-shift effects.

Sequence the legal and safety steps at an accident scene: stop, secure, warn traffic, assess, call for help, and preserve evidence.

Demonstrate (in writing) the first-aid priorities for bleeding, unconscious casualty, suspected spinal injury, and burns.

Explain how to place warning triangles and use hazard lights on a highway, including safe distances.

Describe how to report an accident to police and insurer, and list the documents to collect at the scene.

Explain fire prevention and extinguisher use on a heavy vehicle, including fuel and cargo fire risks.

State the legal alcohol limit, the penalties for driving under the influence, and how drugs and medication affect fitness to drive.

Explain fatigue rules, rest requirements, and the signs that a driver must stop and rest.

List the heavy-vehicle licence categories, the vehicle classes each covers, and the upgrade path between them.

Describe the documents a driver must carry (licence, registration, insurance, inspection certificate, permits) and their renewal cycles.

Outline the medical-fitness requirements and the process for licence renewal, replacement, and penalty points.

Complete two full-length mock exams under timed conditions and score 90% or better on each.

Review every missed question, write the correct rule, and re-test those items until all are answered correctly.

Recite the top 20 high-risk rules (priority, overtaking, speed, load, braking on descents) without notes.

Rehearse the practical test sequence: cockpit drill, start, hill start, maneuvering, and emergency stop.

Finalize a personal weak-area sheet and a 30-minute daily review routine for the week before the test.