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IPAF MEWP Operator study materials
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IPAF MEWP Operator practice questions

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Question 1Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Under the IPAF category system, which designation describes a scissor lift that can be driven on firm ground but is not intended for rough terrain use?

  1. 1B
  2. 1A
  3. 3B
  4. 3A Correct answer.

Explanation

Category 3A covers mobile scissor lifts that are pushed or driven on firm, level surfaces and are not designed for rough terrain. Rough-terrain scissor lifts fall under 3B. The 1A and 1B categories relate to boom-type platforms, not scissors.

Question 2Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

A boom-type MEWP that is towed or vehicle-mounted and therefore not self-propelled falls into which IPAF category?

  1. 1B Correct answer.
  2. 3B
  3. 1A
  4. 3A

Explanation

Category 1B is used for boom-type platforms that are mounted on a vehicle or trailer and cannot be driven from the platform. The '1' group covers boom-type machines, and the 'B' suffix indicates the machine is not self-propelled from the platform.

Question 3Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Which machine characteristic places a scissor lift in category 3B rather than 3A?

  1. It has a working height above 10 metres.
  2. It is powered by a diesel engine.
  3. It is designed for use on rough terrain. Correct answer.
  4. It can be driven with the platform elevated.

Explanation

The A/B split within the 3 group reflects the surface the machine is built for: 3B machines are designed for rough terrain, while 3A machines are limited to firm, level ground. Height, drive-while-elevated capability and fuel type are not the defining criteria for this split.

Question 4Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

A static vertical platform with no boom, fixed in position during use, is classified by IPAF as which category?

  1. 1A Correct answer.
  2. 3A
  3. 3B
  4. 1B

Explanation

Category 1A covers static vertical platforms, including mast-climbing and push-around vertical lifts that are not boom-type and are not self-propelled from the platform. The 1 group is for boom or vertical platforms, and the A suffix indicates a non-self-propelled static machine.

Question 5Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

When selecting a MEWP for a task, which factor most directly determines whether a boom or a scissor machine is the better choice?

  1. Whether the operator holds a forklift licence
  2. Whether the site has a 230 V power supply available
  3. Whether the work requires reaching up and over an obstruction Correct answer.
  4. Whether the machine will be transported by road

Explanation

Boom-type platforms articulate or telescope to place the operator up and over obstacles, while scissor lifts only raise vertically. The need to reach over an obstruction therefore drives the choice between boom and scissor. Power supply, other licences and transport method are secondary considerations.

Question 6Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Before operating any MEWP, what is the primary purpose of the daily pre-use inspection?

  1. To confirm the operator's training certificate is current
  2. To record the machine's hours for billing purposes
  3. To satisfy the manufacturer's warranty conditions
  4. To identify defects and hazards before the machine is used Correct answer.

Explanation

The pre-use inspection exists to find damage, leaks, tyre or track defects and safety-device faults before work starts, so the machine is not used in an unsafe condition. It is a safety control rather than an administrative or commercial one.

Question 7Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

During a pre-use inspection of a scissor lift, you find the pothole protection bars do not deploy when the platform is raised. What is the correct action?

  1. Tag the machine out of service and report the defect Correct answer.
  2. Operate only at low height and report the fault at the end of the shift
  3. Ask a colleague to watch the bars while you work
  4. Continue if the ground is flat and firm

Explanation

Pothole protection is a primary stability safeguard on scissor lifts; if it fails to deploy, the machine must be taken out of service and the defect reported. There is no safe height or ground condition that justifies using a machine with a known safety-device failure.

Question 8Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Which document should be consulted to establish the rated capacity and maximum wind speed for a specific MEWP model?

  1. The delivery driver's paperwork
  2. The manufacturer's operator manual Correct answer.
  3. The company's risk assessment template
  4. The site induction booklet

Explanation

Rated platform capacity, allowable wind speed and other model-specific limits are set by the manufacturer and published in the operator manual. Site and company documents may reference these figures but do not define them.

Question 9Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

When operating a boom-type MEWP, what is the main reason for keeping the platform floor clear of loose tools and debris?

  1. To make the machine easier to transport
  2. To reduce the risk of objects falling and to prevent slips or trips Correct answer.
  3. To increase the rated platform capacity
  4. To reduce fuel consumption during travel

Explanation

Loose items can fall from an elevated platform and strike people below, and clutter creates trip hazards for the operator. Housekeeping in the basket is therefore a drop-prevention and slip control, not a performance or capacity measure.

Question 10Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

You are about to work near live overhead power lines in a boom-type MEWP. Which control should be established before entry into the danger zone?

  1. A second operator standing on the platform with you
  2. Higher travel speed to reduce time near the lines
  3. A ground-level exclusion zone with the lines isolated or the required approach distance maintained Correct answer.
  4. Removal of the platform guardrails for better visibility

Explanation

The standard control is to isolate the lines or maintain the safe approach distance defined by the electricity supplier, supported by a ground-level exclusion zone. Extra people on the platform, faster travel or removing guardrails all increase risk rather than control it.

Question 11Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

On a slope, the manufacturer instructs that a scissor lift must not be driven. What is the correct interpretation?

  1. The machine may be driven on the slope with reduced load
  2. The machine may be driven on the slope if a spotter is used
  3. The machine must not be driven on that slope in any configuration Correct answer.
  4. The machine may be driven on the slope if the platform is lowered

Explanation

A manufacturer's slope restriction applies to driving the machine on that gradient under any configuration; lowering the platform or reducing load does not override the stated limit. Using a spotter does not change the machine's stability characteristics on a slope.

Question 12Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

What is the correct use of the platform-mounted emergency lowering control on a boom-type MEWP?

  1. A means to lower the platform if the operator becomes incapacitated or the controls fail Correct answer.
  2. A routine way to bring the platform down at the end of each shift
  3. A method to speed up descent when time is short
  4. A device for lowering the machine onto a transport trailer

Explanation

Emergency lowering allows the platform to be brought down safely when normal control is lost or the operator cannot operate it. It is an emergency function and must not be used as a routine or time-saving descent method.

Question 13Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

A scissor lift is rated for four people and 500 kg. Three workers of 85 kg each plus 250 kg of materials are on the platform. What is the correct assessment?

  1. The load is acceptable because the person count is below the limit
  2. The load exceeds the rated capacity and must be reduced Correct answer.
  3. The load is acceptable if the platform is kept lowered
  4. The load is acceptable if the materials are evenly spread

Explanation

The combined weight is 3 x 85 kg plus 250 kg, which equals 505 kg and exceeds the 500 kg rating. Person count alone is not the test, and neither lowering the platform nor spreading the load removes the overload.

Question 14Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Why must the guardrails and gate of a MEWP platform be checked and closed before elevating?

  1. To allow the pothole protection to deploy
  2. To keep the platform within its wind rating
  3. To reduce the machine's overall weight
  4. To prevent persons and equipment from falling from the platform Correct answer.

Explanation

Guardrails and the entry gate form the fall-protection system of the platform; if they are open or damaged, the operator or equipment can fall out. They do not affect wind rating, machine weight or pothole protection function.

Question 15Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

On a rough-terrain scissor lift (3B), what is the effect of driving with the platform raised beyond the manufacturer's permitted travel height?

  1. The rated capacity increases because the load is lower
  2. The machine automatically lowers the platform
  3. Stability and tip risk increase, so travel must be limited to the stated height Correct answer.
  4. Tyre wear increases but stability is unaffected

Explanation

Manufacturers set a maximum travel height because raising the platform changes the centre of gravity and reduces stability, particularly on uneven ground. Exceeding it raises tip risk; the machine does not self-correct and capacity does not increase.

Question 16Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Which of the following best describes the purpose of an IPAF PAL Card?

  1. It replaces the need for a site-specific risk assessment
  2. It certifies the machine has passed its thorough examination
  3. It authorises the holder to repair MEWP hydraulic systems
  4. It shows the holder has been trained and assessed for the relevant MEWP category Correct answer.

Explanation

The PAL Card is evidence that the holder has completed IPAF operator training and assessment in the category shown on the card. It is not a machine inspection certificate, a maintenance qualification or a substitute for site-specific planning.

Question 17Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

You must work on a MEWP beside a public footpath. Which arrangement best controls the risk of falling objects?

  1. Raise the platform to maximum height to shorten the task
  2. Work only during quiet periods of the day
  3. Ask pedestrians to look up as they pass
  4. Physically segregate the drop zone and use tool lanyards or tethers Correct answer.

Explanation

Falling-object risk is controlled by excluding people from the area below and securing tools and equipment to the platform. Timing, warnings and speed of work do not provide reliable protection.

Question 18Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

What should an operator do if a MEWP's tilt alarm sounds while the platform is elevated?

  1. Drive quickly to the nearest level area with the platform raised
  2. Continue working while the alarm sounds
  3. Increase platform height to stabilise the machine
  4. Lower the platform carefully and move the machine to level ground Correct answer.

Explanation

A tilt alarm indicates the machine is outside its safe operating angle, so the platform should be lowered in a controlled way and the machine relocated to level ground. Continuing work, travelling at speed or raising further all increase the risk of overturning.

Question 19Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Which factor is most important when deciding whether a boom-type MEWP can be used in windy conditions?

  1. The colour of the machine's harness points
  2. The number of years the operator has held a licence
  3. The manufacturer's rated wind speed and the exposed sail area of the platform and load Correct answer.
  4. The distance from the site office to the work area

Explanation

Boom platforms present a large sail area, and the manufacturer specifies a maximum wind speed for safe operation. The decision must consider both that rating and the actual sail area created by the platform, occupants and materials.

Question 20Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

When a MEWP is being loaded onto a trailer, who should be in the platform?

  1. A trained banksman, to guide the driver
  2. The operator, to steer the machine
  3. No one, unless the manufacturer's instructions specifically permit it Correct answer.
  4. Any available colleague, to save time

Explanation

Loading and unloading are high-risk operations and the platform should normally be unoccupied unless the manufacturer's instructions expressly allow an occupant. Riding the platform during loading exposes people to crush and fall hazards.

Question 21Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

What is the correct action if a MEWP's controls respond erratically during operation?

  1. Stop, lower the platform if safe, and take the machine out of service Correct answer.
  2. Switch to the ground controls and carry on working
  3. Continue at reduced speed and monitor the behaviour
  4. Ask another operator to try the controls

Explanation

Erratic control response indicates a fault that could cause uncontrolled movement, so work must stop and the machine be withdrawn from service until repaired. Continuing, switching control stations or having someone else try does not resolve the underlying defect.

Question 22Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Which statement correctly distinguishes a scissor lift from a boom-type MEWP in terms of platform movement?

  1. A scissor lift can reach over obstructions, while a boom cannot
  2. A scissor lift always has a greater working height than a boom
  3. A scissor lift raises the platform vertically, while a boom can position it laterally as well Correct answer.
  4. A boom platform can only be raised vertically

Explanation

Scissor lifts move the platform straight up and down on a scissor mechanism, whereas boom machines can articulate or telescope to place the platform out and over obstacles. The other statements reverse or misstate these characteristics.

Question 23Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

An operator needs to access a work point above a machine guard that cannot be removed. Which MEWP capability is required?

  1. A boom-type platform able to articulate over the guard Correct answer.
  2. A static vertical lift
  3. A scissor lift with a large platform
  4. A towable trailer-mounted lift without a boom

Explanation

Reaching over a fixed obstruction requires the lateral reach of an articulating boom, which can position the platform beyond the guard. Scissor and static vertical lifts only raise vertically and cannot reach over the obstacle.

Question 24Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Why should an operator avoid leaning out over the guardrail to reach a work point?

  1. It voids the machine's insurance
  2. It interferes with the tilt alarm sensor
  3. It can cause a fall or tip the machine by shifting the centre of gravity Correct answer.
  4. It may exceed the machine's rated capacity

Explanation

Leaning out beyond the guardrail defeats the fall-protection system and shifts the operator's weight outside the platform footprint, which can destabilise the machine. The correct approach is to reposition the machine so the work is reachable from within the platform.

Question 25Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

What is the minimum information a rescue plan for MEWP work must address?

  1. The number of spare batteries on site
  2. The cost of the machine hire
  3. The route the delivery vehicle will take
  4. How to recover a person from an elevated platform who cannot lower it themselves Correct answer.

Explanation

A rescue plan must set out how an incapacitated or stranded person will be brought down from the platform without delay, using the emergency lowering system or trained rescue arrangements. Commercial and logistics details are not part of it.

Question 26Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Under the IPAF category system, which designation applies to a scissor lift that is only permitted to be driven on firm, level surfaces indoors or on prepared hardstanding?

  1. Category 3A Correct answer.
  2. Category 1B
  3. Category 1A
  4. Category 3B

Explanation

Category 3A covers scissor lifts designed for indoor and slab use on firm, level surfaces. Rough-terrain scissor lifts that can travel over uneven ground fall into 3B, while 1A and 1B refer to static vertical lifts, not mobile scissor platforms.

Question 27Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

A boom-type MEWP whose platform can be positioned beyond its wheelbase without outriggers is classified in which IPAF category?

  1. Category 1A
  2. Category 3A
  3. Category 3B Correct answer.
  4. Category 1B

Explanation

Category 3B covers mobile booms that can travel over rough terrain and elevate the platform beyond the chassis without outriggers. The 3 prefix indicates a mobile elevating platform, and the B suffix indicates boom-type structure.

Question 28Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

What does the letter 'B' in the IPAF category codes 1B and 3B indicate about the machine?

  1. The machine is battery powered
  2. The machine can only be used outdoors
  3. The machine must be operated by two people
  4. The platform is raised by a boom structure Correct answer.

Explanation

In the IPAF classification, the letter B denotes a boom-type elevating structure. The letter A denotes a vertical mast or scissor-type structure that raises the platform without a boom. Power source, crew size and location are not encoded by this letter.

Question 29Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Which IPAF category describes a static vertical lift that is not self-propelled and is used for slab-level work such as stock picking?

  1. Category 1B
  2. Category 3B
  3. Category 3A
  4. Category 1A Correct answer.

Explanation

Category 1A covers static vertical lifts with a non-boom structure, typically mast lifts used on firm floors. The 1 prefix denotes a static machine that is not driven, and A denotes a non-boom elevating structure.

Question 30Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

A groundworker needs to install cladding at height on a new-build steel frame and the ground is compacted hardcore with slight undulation. Which MEWP category is most appropriate for reaching the work point from the ground?

  1. Category 1B vertical lift
  2. Category 3A scissor
  3. Category 1A vertical lift
  4. Category 3B boom Correct answer.

Explanation

A rough-terrain boom in category 3B can travel over compacted, slightly uneven ground and reach work points beyond the chassis. Scissor lifts in 3A are limited to firm level slab surfaces, and static vertical lifts in 1A or 1B cannot travel to the work position.

Question 31Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

An operator is selecting a MEWP to work inside a finished warehouse with a smooth concrete floor and needs to reach ceiling services directly above the machine. Which category best matches the task?

  1. Category 3B scissor lift
  2. Category 3A scissor lift Correct answer.
  3. Category 3B rough-terrain boom
  4. Category 1B static boom

Explanation

A 3A scissor lift is designed for firm, level slab surfaces and raises the operator vertically, which suits overhead work in a finished warehouse. Rough-terrain machines are unnecessary indoors, and a static boom cannot be repositioned easily along the aisle.

Question 32Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Which characteristic distinguishes a category 3B scissor lift from a category 3A scissor lift?

  1. It can elevate the platform beyond its chassis
  2. It is designed to travel over uneven ground Correct answer.
  3. It uses a boom to position the platform
  4. It is restricted to indoor use only

Explanation

The B in 3B denotes rough-terrain capability, so the machine is built to travel over uneven ground. Both 3A and 3B scissors raise the platform vertically within the chassis footprint; extending beyond the chassis is a boom characteristic, not a scissor one.

Question 33Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Why does a category 3B boom require the operator to check ground bearing pressure before setting up on made ground?

  1. The machine's weight and boom loads are concentrated through wheels or outriggers Correct answer.
  2. The machine is lighter than a 3A scissor lift
  3. The machine cannot be levelled once positioned
  4. The machine's platform must remain level with the ground

Explanation

Rough-terrain booms transfer substantial point loads through wheels or outrigger pads, so weak or made ground can settle or collapse. Checking bearing pressure ensures the machine stays level and stable during elevation. Weight comparisons with scissor lifts and platform levelling are not the reason for the check.

Question 34Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

On a 3B boom, what is the purpose of the chassis levelling controls or outrigger indicators?

  1. To increase the rated platform capacity
  2. To confirm the machine is level before the boom is elevated Correct answer.
  3. To raise the platform faster than normal
  4. To allow the machine to be driven with outriggers deployed

Explanation

Levelling controls and indicators let the operator set the chassis level so the machine remains stable as the boom is raised. They do not alter capacity, speed or driving rules; in fact most machines must not be driven with outriggers deployed.

Question 35Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

What is the correct action if the tilt indicator on a 3B boom illuminates while the platform is elevated?

  1. Continue working while keeping the boom within its envelope
  2. Raise the platform further to clear the tilt sensor
  3. Lower the boom and reposition the machine on level ground Correct answer.
  4. Drive the machine slowly to a level area with the platform raised

Explanation

A tilt warning means the chassis is outside its safe operating angle, so the boom must be lowered before the machine is repositioned. Continuing to work or driving with the platform raised risks overturning. Raising the platform further increases the overturning moment.

Question 36Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Which of the following best explains why a scissor lift in category 3A must not be driven with the platform raised above the manufacturer's travel height?

  1. The machine's stability and braking are only assured at or below that height Correct answer.
  2. The battery drains faster when the platform is raised
  3. The platform lighting is inadequate above that height
  4. The platform guardrails are not strong enough above that height

Explanation

Above the permitted travel height, the machine's stability margin and braking performance are no longer assured, particularly on slopes or uneven floors. Guardrail strength, battery drain and lighting are not the governing reasons for the travel height limit.

Question 37Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

A 3B boom is being set up on a slope within the manufacturer's permitted gradient. What is the correct sequence before elevating the platform?

  1. Chock the wheels, apply the parking brake and confirm the chassis is level Correct answer.
  2. Deploy outriggers only after the platform is elevated
  3. Drive to the work point with the boom partially raised
  4. Raise the boom first, then apply the parking brake

Explanation

The machine must be secured and level before the boom is elevated, so the parking brake is applied, wheels are chocked where required and the level indicator is checked. Raising the boom or outriggers in the wrong order defeats the machine's stability design.

Question 38Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

What does the IPAF PAL Card confirm about its holder?

  1. They are licensed to design MEWP rescue plans
  2. They are qualified to supervise all MEWP operations on site
  3. They are authorised to repair MEWP hydraulic systems
  4. They have been trained and assessed for the specific MEWP category shown Correct answer.

Explanation

The PAL Card records that the holder has been trained and assessed to operate the specific category or categories printed on it. It does not confer supervisory, maintenance or rescue-plan design authority, which require separate competence.

Question 39Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

An operator holds a PAL Card for category 3A but is asked to operate a 3B rough-terrain boom. What is the correct response?

  1. Decline until trained and assessed in category 3B Correct answer.
  2. Operate it only for a short task
  3. Operate it because the card covers all MEWPs
  4. Operate it only if a colleague watches

Explanation

The PAL Card is category-specific, so operating outside the categories shown is not covered by the holder's training and assessment. The operator should decline until they have been trained and assessed in the additional category. Supervision or short duration does not substitute for category training.

Question 40Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Which of the following is the operator's responsibility when arriving at a new site to use a MEWP?

  1. Familiarising themselves with the site-specific risk assessment and rescue arrangements Correct answer.
  2. Certifying the machine's annual thorough examination
  3. Approving the ground conditions for all MEWP operations
  4. Rewriting the site's traffic management plan

Explanation

The operator must understand the site-specific hazards, controls and rescue arrangements before starting work. Rewriting traffic plans, certifying thorough examinations and approving ground conditions are duties of other appointed roles, not the operator.

Question 41Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Why must an operator never use the platform guardrails as an anchor point for a fall-arrest lanyard unless the manufacturer permits it?

  1. The lanyard would increase the rated capacity
  2. The guardrail is not designed to withstand arrest forces Correct answer.
  3. The guardrail would prevent the platform from lowering
  4. The lanyard would tangle with the controls

Explanation

Guardrails are designed to restrain a person, not to withstand the dynamic forces of a fall arrest, so anchoring to them can cause failure. Manufacturers specify approved anchor points where restraint or arrest equipment is required. Tangle risk and capacity are not the reason for the prohibition.

Question 42Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

When is a full body harness with a short restraint lanyard normally required in a boom-type MEWP?

  1. When the manufacturer or risk assessment specifies it for that machine or task Correct answer.
  2. At all times on every MEWP category
  3. Only when working indoors
  4. Only when the platform is above 10 metres

Explanation

Harness use in a boom is determined by the manufacturer's instructions and the task risk assessment, often where the platform can be catapulted or where an anchor point is provided. It is not a blanket rule for every category, height or location.

Question 43Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

A 3A scissor lift is being used near a loading dock edge. Which control most directly reduces the risk of the machine falling into the void?

  1. Maintaining a barrier or exclusion zone back from the edge Correct answer.
  2. Driving quickly past the edge
  3. Increasing the platform load to improve grip
  4. Raising the platform to improve visibility

Explanation

A physical barrier or marked exclusion zone keeps the machine and its wheels away from the edge, preventing the floor from collapsing or the machine tipping into the void. Load, platform height and speed do not reduce edge risk and may increase it.

Question 44Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

What is the main reason for using a MEWP's platform-mounted auxiliary power unit or manual pump in an emergency?

  1. To increase the platform's rated capacity
  2. To recharge the main battery during work
  3. To override the tilt sensor
  4. To lower the platform when the primary power fails Correct answer.

Explanation

Auxiliary or manual lowering systems allow the platform to be brought down safely if the primary power or controls fail. They do not change capacity, recharge the battery or override safety sensors.

Question 45Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Which of the following best describes the correct way to move a 3B boom between work points on site?

  1. Lower the boom to the travel position and drive at a safe speed Correct answer.
  2. Drive with the outriggers deployed
  3. Drive with the platform fully elevated and extended
  4. Drive with the platform raised to save time

Explanation

Booms should be lowered to the manufacturer's travel position before driving, with the platform stowed and outriggers retracted. Driving with the platform raised or outriggers deployed compromises stability and is normally prohibited.

Question 46Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

An operator is asked to use a 3A scissor lift on a suspended floor in a multi-storey building. What must be confirmed before the machine is moved onto the floor?

  1. The floor has been painted recently
  2. The building has a goods lift
  3. The floor's load-bearing capacity is adequate for the machine and its loads Correct answer.
  4. The machine's battery is fully charged

Explanation

Suspended floors have finite load capacity, so the combined weight of the machine, occupants and materials must be checked against the structural rating. Paint condition, battery charge and lift availability do not address the structural risk.

Question 47Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

What is the correct interpretation of a manufacturer's statement that a 3B scissor lift may travel on gradients up to 20 percent only with the platform lowered?

  1. The gradient limit applies only in the stowed travel position Correct answer.
  2. The machine may travel on any gradient if the platform is lowered
  3. The gradient limit applies only when the machine is empty
  4. The gradient limit applies at any platform height

Explanation

The manufacturer's gradient limit is conditional on the platform being in the stowed position, because stability margins are reduced at height. The limit does not apply at any height, is not unlimited when lowered, and is not conditional on the machine being empty.

Question 48Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Why is it important to check the MEWP's rated capacity and load distribution chart before adding materials to the platform?

  1. The chart lists the machine's service intervals
  2. The chart indicates the correct tyre pressure
  3. Exceeding capacity or concentrating load can cause structural failure or tip-over Correct answer.
  4. The chart shows the machine's fuel consumption

Explanation

The capacity and load distribution chart defines the maximum safe load and how it may be spread across the platform. Exceeding it or concentrating load can overload the structure or shift the centre of gravity, causing failure or tip-over. Fuel, service and tyre data are unrelated.

Question 49Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

A 3A scissor lift is rated for 230 kg. Two workers of 90 kg each plus 70 kg of tools are loaded. What is the correct assessment?

  1. The load is acceptable if the platform is kept low
  2. The load is acceptable if the tools are spread evenly
  3. The load is acceptable because it is within 10 percent of capacity
  4. The total of 250 kg exceeds the rated capacity, so the load must be reduced Correct answer.

Explanation

The combined load of 250 kg exceeds the 230 kg rating, so the load must be reduced regardless of distribution or platform height. A ten percent tolerance is not a manufacturer allowance, and even spreading or keeping the platform low does not make an overload acceptable.

Question 50Mobile elevating work platforms (MEWP) categories: boom, scissor, 1B, 3A and 3B

Which of the following best explains why an operator should not add unauthorised attachments such as extra boards or signs to a MEWP platform?

  1. They interfere with the machine's radio signal
  2. They reduce the machine's battery life
  3. They make the platform harder to clean
  4. They can alter wind loading, weight and stability beyond the design limits Correct answer.

Explanation

Unauthorised attachments change the platform's weight, wind area and centre of gravity, potentially exceeding the design limits. Cleaning difficulty, battery life and radio interference are not the safety reasons for the prohibition.