LK DMT Heavy Vehicle Written flashcards
LK DMT Heavy Vehicle Written · Build recall with a focused review session.
33 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Keep left rule
- On a two-way road a heavy vehicle must be driven as close as practicable to the left edge of the roadway, except when overtaking or turning.
- Four-second following rule
- A heavy vehicle should stay at least four seconds behind the vehicle ahead in dry conditions, doubling the gap to eight seconds in rain or on gravel.
- Solid centre line
- A continuous centre line on your side of the road forbids crossing or straddling it, so overtaking is not permitted where it is present.
- Uncontrolled intersection priority
- At an intersection without signs or signals, a driver must give way to vehicles approaching from the right, and a turning vehicle gives way to through traffic.
- Level crossing rule
- A heavy vehicle must not enter a level crossing unless there is sufficient space to clear it completely on the far side without stopping on the tracks.
- Red octagon sign
- A red octagonal sign means stop: the driver must bring the vehicle to a complete halt at the stop line and proceed only when safe.
- Blue circular sign
- A blue circular sign gives a mandatory instruction, such as a minimum speed, a compulsory direction, or a route that must be followed.
- Yellow box junction
- A yellow box junction may be entered only when the exit is clear; a driver turning right may wait in it only if blocked by oncoming traffic.
- Flashing red railway signal
- A flashing red light at a railway crossing requires the driver to stop and remain stopped until the lights cease flashing and the crossing is clear.
- Broken white centre line
- A broken white centre line may be crossed to overtake when it is safe, provided no solid line on your side forbids the manoeuvre.
- Brake fade on downgrades
- Continuous service braking on a long downgrade overheats the brakes and reduces stopping power; a low gear and engine braking prevent this.
- Kinetic energy and speed
- Braking energy rises with the square of speed, so doubling a heavy vehicle's speed roughly quadruples the energy its brakes must absorb.
- Rear overhang marker
- A load projecting more than one metre beyond the rear of a vehicle must carry a clearly visible warning marker for following traffic.
- Off-tracking on turns
- Rear wheels of a long heavy vehicle track inside the front wheels in a turn, so extra clearance is needed on the inside of corners.
- Load distribution limits
- A load must be positioned so each axle load stays within the manufacturer's rating and the total mass does not exceed the permitted gross vehicle mass.
- Daily pre-trip inspection
- Before each shift the driver checks tyres, brakes, lights, steering, mirrors, fluids, load security and warning devices, recording any defect found.
- Minimum tyre tread depth
- Heavy vehicle tyres need at least one millimetre of tread across the central three-quarters of the tread width, and no dangerous cuts or bulges.
- Air brake leak check
- With the system charged and the engine off, brake pressure should hold steady; a continuous pressure drop indicates a leak needing repair.
- Safety defect reporting
- Any defect affecting brakes, steering, tyres or lights makes the vehicle unroadworthy and must be reported and repaired before it is driven.
- Wheel nut indicators
- Plastic indicators fitted to wheel nuts reveal loosening; wheel torque must be checked after wheel changes and at the start of each shift.
- See-Think-Do system
- Hazard perception follows observe, assess and act: scan well ahead, identify hazards early, then choose and carry out a planned response.
- Heavy vehicle blind spots
- Large areas around a heavy vehicle, especially alongside and directly behind, cannot be seen in mirrors, so drivers must check carefully before manoeuvring.
- Fog headlight choice
- In fog a driver should use low beam rather than high beam, because high beam reflects off the fog and reduces forward visibility.
- Fatigue break rule
- After about four hours of continuous driving a driver should take a break of at least fifteen minutes, and should stop driving if drowsy.
- Collision avoidance braking
- When a crash is unavoidable, brake firmly in a straight line and steer to reduce the severity of impact rather than swerving sharply.
- Correct licence class
- A driver must hold the licence class matching the vehicle's gross vehicle mass and configuration, such as a heavy combination or rigid truck class.
- Duty after a collision
- A driver involved in a collision causing injury, death or damage must stop, give assistance, and provide name, address, licence and vehicle details.
- Breath test obligation
- A driver must submit to a lawful breath or blood test when required by police, and driving under the influence of alcohol or drugs is prohibited.
- Documents to carry
- A heavy vehicle driver must carry the driving licence, vehicle registration, insurance and any required permits, and produce them when lawfully requested.
- DRSABCD action plan
- The first aid sequence is Danger, Response, Send for help, Airway, Breathing, CPR and Defibrillation, starting with checking the scene for danger.
- Recovery position use
- An unconscious casualty who is breathing should be placed in the recovery position and monitored continuously until emergency help arrives.
- Crash scene protection
- At a crash scene, switch off engines, use hazard lights or warning triangles, and keep other traffic away to protect casualties and rescuers.
- Fuel spill response
- Split fuel or oil must be contained with absorbent material and reported, and must never be washed into drains or waterways.