Cert III Mobile Plant flashcards
Cert III Mobile Plant · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Hierarchy of control
- The ranked order of risk controls: eliminate the hazard, substitute it, engineer isolation, apply administrative controls, and use personal protective equipment as the last defence.
- Risk score formula
- Risk equals likelihood multiplied by consequence. Controls are applied until the score is reduced to the lowest level reasonably practicable for the task.
- Lock-out tag-out
- An isolation procedure where energy sources are shut off, locked, tagged with the owner's name, and tested to confirm the machine is dead before maintenance begins.
- Safe work method statement
- A document describing high-risk work, the hazards, the controls, and the sequence of steps. It is reviewed whenever the task, plant, or site conditions change.
- Stop-work authority
- The right of any worker to stop a task they reasonably believe is unsafe. The worker must not be penalised for exercising it, and the concern is reviewed.
- Near miss reporting
- Recording an event that could have caused harm but did not. It is treated like an incident because it reveals a failed control before injury occurs.
- Pre-start inspection
- The check completed before each shift covering fluids, leaks, tyres or tracks, guards, seat belt, horn, lights, and fire equipment. Results are recorded.
- Muster point
- The designated assembly area used during an emergency. Personnel move there when the alarm sounds and are accounted for by name.
- Stability triangle
- The area bounded by the centre of each front wheel and the steer axle pivot. The combined centre of gravity of truck and load must remain inside it.
- Load centre
- The horizontal distance from the vertical face of the forks to the centre of gravity of the load, usually 600 millimetres on the capacity plate.
- Rated capacity
- The maximum load mass a forklift may lift at a stated load centre and lift height, as shown on the capacity plate. It falls as load centre increases.
- Capacity plate
- A plate on the forklift showing the model, rated capacity, load centre, lift height, and any derating for attachments. It is read before lifting an unfamiliar load.
- Travel height
- The fork height used when travelling loaded, about 100 to 150 millimetres above the floor, with the mast tilted back and the load uphill on ramps.
- Rear wheel lift
- A warning that the combined centre of gravity has passed the stability limit. The operator stops immediately and lowers the load to restore stability.
- Tip-over response
- Hold the wheel, brace the feet, and stay in the seat with the seat belt fastened. Do not jump, because the overhead guard protects the operator.
- Forklift pre-start check
- Inspection of forks and heels, mast chains, hoses, tyres, seat belt, horn, lights, and brakes, followed by a function test before work begins.
- Forklift parking procedure
- Forks flat on the floor, mast tilted slightly forward, park brake applied, controls in neutral, and the key removed before leaving the machine.
- LPG cylinder change
- Changing a forklift gas cylinder with the engine off in a ventilated area, checking the seal and hose, and leak-testing the connection before restarting.
- Racking beam rating
- The maximum load a storage bay may carry, marked on the racking. The load is placed evenly and the bay capacity is never exceeded.
- Stability triangle shift
- The combined centre of gravity moves toward the load as load centre or height increases, reducing the margin inside the stability triangle and lowering safe capacity.
- Sling leg tension
- For a two-leg sling at angle theta from horizontal, tension in each leg equals load divided by two times sine theta. Lower angles increase tension.
- Working load limit
- The maximum mass a sling, shackle, or fitting may carry in service. The assembly rating is limited by its weakest component.
- Slew radius exclusion zone
- The area around a slewing machine that must be kept clear of people. The radius is set by the risk assessment and maximum reach plus a margin.
- Pick-and-carry
- Travelling with a suspended load. It is permitted only where the load chart and manufacturer allow it, with the load low and the route surveyed.
- Outrigger setup
- Fully extending outriggers on firm level footing with bearers or mats, confirming ground bearing capacity, and levelling the machine before any lift.
- Ground bearing check
- Confirming the ground or slab can carry the machine and load, using spreader pads or mats on soft ground, and checking slab ratings for suspended floors.
- Boom deflection effect
- Under load the boom bends, increasing the working radius. Load charts account for this, so capacities are read from the chart and never interpolated.
- Machine logbook
- A record of pre-start checks, hour meter readings, faults, and servicing kept with the machine and signed by the operator each shift.
- Scissor lift limitation
- A vertical-only platform that must be used on firm level ground. It is not driven elevated on uneven ground or positioned near edges without checks.
- EWP harness anchor
- The designated, rated attachment point in a boom platform where the lanyard is clipped. Rails, gates, and unmarked fittings are never used.
- Auxiliary lowering
- The emergency descent system, operated by a ground control or manual pump, used to lower the platform if the normal power or controls fail.
- EWP tilt alarm
- A sensor that warns when the platform or chassis exceeds the permitted slope. The operator lowers the platform and repositions on level ground.