1. What is the purpose any of counterweights of the machine?
The counterweights on a scissor lift help to provide stability and balance to the machine. They counteract the force exerted by the elevated platform and prevent the machine from tipping over. This is especially important when the lift is extended to its maximum height. The counterweights are strategically placed to distribute the weight evenly and prevent any potential accidents.
2. When parking the machine at the end of the shift, name THREE places where the MEWP should NOT be parked.
The MEWP should not be parked on slopes, uneven or soft ground, or near hazards such as power lines.
3. a) What determines the minimum distances that any part of plant and machinery has to be kept from over head electricity lines and b) explain why a distance should be kept.
a) The minimum distances that any part of a mobile elevating work platform (MEWP) such as a scissor lift must be kept from overhead electricity lines are determined by national legislation and industry guidelines. These regulations consider factors such as the voltage of the power lines and the risk of electrical shock or arcing occurring.
b) A distance should be kept between a MEWP and overhead electricity lines to minimize the risk of electrical contact or arc flash, which can result in serious injury or even death. Keeping a safe distance reduces the chance of accidental contact and helps ensure the safety of the operators and workers on the platform.
4. The operator has to use a new type of MEWP that they are unfamiliar with. What do Regulations (i.e. PUWER 98) and other guidance require the operator to have?
According to PUWER 98 regulations and other guidance, the operator of a new type of MEWP should have adequate training, instruction, and supervision. This includes familiarization with the specific equipment and its operating procedures. Proper competence and knowledge of the risks associated with the MEWP and its safe operation are essential. Training should cover various aspects, such as pre-use checks, stability, emergency procedures, and any specific hazards related to the particular MEWP. Referring to the manufacturer's instructions and guidance is also crucial for ensuring safe operation.
5. Using the Operator's Manual, state any cold-starting procedures for the machine. For electric units only, state the battery function checks that need to be made. Note: The Operator's Manual for the machine being used for the test MUST be available for reference by the candidate.
Refer to the Operator's Manual for the machine being used. It will contain the cold-starting procedures for the Mobile Elevating Work Platform (MEWP) - Scissor. For electric units, the battery function checks should also be outlined in the manual. It's imperative that the Operator's Manual is accessible for the candidate to reference during the test.
6. The Safe Working Load (SWL) signifies what?
The Safe Working Load (SWL) of a Mobile Elevating Work Platform (MEWP) indicates the maximum weight the scissor mechanism can safely lift and support. It is an important specification to consider to ensure the machine is not overloaded, which could lead to stability and safety issues. Always verify the SWL of the scissor MEWP and ensure that the weight being lifted, including any workers, tools, and materials, does not exceed this limit. Safety should be the utmost priority when operating any MEWP.
7. When working in a confined area or space with a diesel-powered machine, name THREE dangers that can be present?
When working in a confined area or space with a diesel-powered scissor lift, three dangers that can be present are:
1. Carbon monoxide poisoning due to the emissions from the diesel engine.
2. Limited visibility, which can increase the risk of accidents or collisions.
3. Increased fire hazard due to the presence of flammable materials and the potential for fuel leaks.
8. Name FOUR different types or levels of disciplinary actions or sanctions that can be applied (by employers and judicial bodies) to operators of plant who do not comply with, or follow legislation and regulations.
The four types of disciplinary actions for non-compliance with legislation and regulations are:
1. Verbal warning: Conversational reprimand highlighting the non-compliance and its consequences.
2. Written warning: Formal documentation of the violation and potential consequences if it persists.
3. Suspension: Temporary removal from work due to severe non-compliance.
4. Termination: Employment contract ending due to continuous and serious non-compliance.
Judicial bodies may enforce additional sanctions based on the severity of the non-compliance, including fines and legal action. It is important for operators to comply with legislation and regulations to maintain safety standards and avoid disciplinary actions.
9. When checking a (fall protection) harness, name FIVE possible defects that may be found.
Possible defects that may be found in a fall protection harness during a check include frayed or worn webbing, damaged or deformed metal components, loose or missing stitching, distorted or torn labels, and faulty buckles or connectors.
10. Where should the Operator's Manual be kept and why?
The Operator's Manual for a Mobile Elevating Work Platform - Scissor should be kept on the machine itself, ideally in a weatherproof container, as it serves as an essential reference for operators. Having the manual readily available ensures that operators have access to important information about safe operation, maintenance, and emergency procedures. This helps to ensure that operators can consult the manual whenever necessary, promoting efficient and safe use of the equipment.
11. How do stabilisers increase the potential stability of a MEWP scissor?
Stabilizers increase the stability of a scissor mobile elevating work platform (MEWP) by providing additional support and preventing tipping or swaying. They are typically deployed horizontally to create a wider base of support for the scissor platform. This increased base area helps distribute the weight of the MEWP and reduces the risk of it tilting or becoming unstable when elevated. Stabilizers are crucial for ensuring the safe operation of a scissor MEWP, especially on uneven terrains or when working at higher elevations.
12. a) Why must all travel and platform controls be clearly marked as to function and direction or mode and b) what consequences could occur if controls were not clearly marked?
a) All travel and platform controls must be clearly marked to ensure safe operation and prevent confusion. Clear marking helps operators easily identify the function and direction or mode of the controls, reducing the risk of errors or accidents during operation.
b) If controls are not clearly marked, there could be serious consequences. Operators may make mistakes due to confusion or misunderstanding, leading to unintended movements or incorrect operation of the platform. This can result in accidents, injuries, or damage to the equipment or surrounding infrastructure. Therefore, clear marking of controls is crucial for safe and reliable operation.
13. When siting the MEWP for work, what checks must be made to the ground type?
When siting the MEWP for work, it is essential to check the ground type. You should assess the ground's stability and load-bearing capacity to ensure safe operation. Look for any signs of instability, such as soft or uneven terrain. Check for underground utilities or obstructions that could impact stability. Also, consider the ground conditions, such as slopes and gradients, that may affect the MEWP's stability. Always follow the manufacturer's guidelines and consult a qualified engineer if there are any concerns regarding the suitability of the ground for the MEWP.
14. What THREE main duties of the Health and Safety at Work Act must employees follow?
The main duties under the UK Health and Safety at Work Act that employees must follow are: to take reasonable care of their own health and safety and that of others who may be affected by their actions; to cooperate with their employer in meeting their legal obligations; and to use any safety equipment or protective measures provided by their employer. These duties are essential for creating a safe working environment and preventing accidents and injuries. It is important for employees to be aware of and comply with these responsibilities at all times.
15. What must you take into account when calculating the safe working load of the platform of a MEWP?
When calculating the safe working load of a Mobile Elevating Work Platform (MEWP) with a scissor platform, several factors must be considered. These include the design specifications and load capacity stated by the manufacturer, any additional attachments or accessories being used, the weight of the operator(s), equipment, tools, and materials being carried on the platform. It is crucial to adhere to the manufacturer's guidelines, ensuring not to exceed the maximum load capacity to maintain the safety and stability of the MEWP. Regular inspections and maintenance should be carried out to prevent any potential hazards or failures.
16. What is the difference between: a) a work-restraint system and b) a fall arrest system?
A work-restraint system is designed to prevent a person from reaching a position where a fall could occur. It restricts their movement within a safe working area. On the other hand, a fall arrest system is designed to arrest a fall that has already occurred. It includes equipment such as harnesses and lanyards that are used to stop the person from falling further. Both systems are used to protect workers at height, but work-restraint focuses on prevention, while fall arrest focuses on arresting falls. Shiny scissors!
17. a) What is the purpose of a Method Statement and b) what is required of the operator?
a) A Method Statement is a written document that outlines how a specific task or activity will be carried out safely and efficiently. It details the steps, equipment, and materials involved, as well as highlighting any potential hazards and the measures taken to control them.
b) The operator of a mobile elevating work platform (MEWP) such as a scissor lift must be trained and competent to operate it. They should be familiar with the manufacturer's instructions and safety guidelines. The operator should conduct pre-use inspections, operate the MEWP safely, and follow safe working practices. They must also wear appropriate personal protective equipment (PPE) and communicate effectively with others at the work site.
18. What is meant by a bi-fuel MEWP?
A bi-fuel MEWP refers to a Mobile Elevating Work Platform that can operate using two types of fuels. Typically, it can run on both diesel and LPG (liquefied petroleum gas). This versatility allows for greater flexibility in fuel choice based on the specific needs of the task or job site.
19. Why are those who operate MEWPS generally regarded as 'safety-critical' workers?
Those who operate MEWPs are considered "safety-critical" workers because their job involves working at height and operating complex machinery. As a result, their actions directly affect the safety of themselves and others. Failure to adhere to safety protocols and operate the machine correctly can result in serious accidents, injuries, or even fatalities. Additionally, working at height presents inherent risks, such as falling from the platform or objects falling from the platform. Therefore, operators of MEWPs must receive comprehensive training and follow strict safety guidelines to minimize risks and ensure the safety of everyone involved.
20. What are the THREE actions that a MEWP operator undertakes during pre-use inspections?
The three actions that a MEWP operator undertakes during pre-use inspections are:
1. Checking the overall condition of the machine, including any visible damage, leaks, or loose parts.
2. Inspecting the safety devices and features, such as guardrails, harness points, and emergency controls, to ensure they are in proper working condition.
3. Examining the workplace and surrounding environment for any potential hazards or obstructions that may impact safe operations. These pre-use inspections are important to identify any issues or risks that need to be addressed before operating the equipment.
21. As a platform is raised higher, what also rises that can cause instability?
As a scissor platform is raised higher, the center of gravity rises as well, potentially causing instability. The increased height creates a higher leverage effect, making the platform more prone to tipping. It is important to maintain proper weight distribution and stability while operating the platform at elevated heights.
22. What would happen if the steering axle is to the rear of the direction for travel?
If the steering axle is positioned to the rear of the direction of travel on a scissor lift, it would cause the machine to have poor maneuverability. This configuration would make it difficult to steer the lift accurately and safely, potentially increasing the risk of accidents or damage to the equipment or surrounding structures. It is important for the steering axle to be positioned appropriately for efficient and safe operation of the scissor lift.
23. Give FOUR reasons that may cause the MEWP to tip over.
Four reasons that may cause a MEWP to tip over are:
1. Operating on uneven or sloping ground.
2. Overloading the platform with excessive weight.
3. Poor placement or unstable surface conditions of the supporting outriggers/stabilizers.
4. Changing platform position or movement too suddenly or forcefully.
24. As a machine for the lifting of persons, the MEWP must be thoroughly examined. a) What is the purpose of the examination and b) who should carry out the examination?
a) The purpose of the examination is to ensure that the Mobile Elevating Work Platform (MEWP) is in safe working condition and compliant with relevant regulations. It helps identify any defects or issues that may affect the safe operation of the machine.
b) The examination should be carried out by a competent person, who has the necessary knowledge, skills, and experience to assess the condition of the MEWP. This could be an engineer or inspector who specializes in conducting examinations of similar equipment. They should have a good understanding of relevant regulations and standards.
25. If a self-propelled scissor is being travelled or working on the public highway, including adjacent pavement and verges, the Road Traffic Act applies. a) What type of licence and which classes should the operator hold and b) what is the minimum age allowed?
a) The operator of a self-propelled scissor being used on the public highway should hold a driving licence appropriate for the vehicle category. In the UK, this would typically be a category B driving licence, which covers vehicles up to
3.5 tonnes. Additionally, if the scissor is fitted with an upper control box, a category A motorbike licence may be required.
b) The minimum age allowed for operating a self-propelled scissor on the public highway is 17 years old, when holding a category B driving licence. For a category A motorbike licence, the minimum age is 17 for machines up to 125cc and 19 for machines over 125cc.
26. Name THREE ways that a hired-in MEWP operator can contribute in ensuring repeat business with the client or principal contractor.
A hired-in MEWP operator can contribute to ensure repeat business with the client or principal contractor by:
1. Demonstrating excellent operational skills, ensuring efficient and safe use of the MEWP, minimizing disruptions and delays to the construction project.
2. Following all health and safety procedures and regulations, as well as adhering to any site-specific requirements, to maintain a safe working environment for themselves and others.
3. Communicating effectively with the client or principal contractor, providing regular updates on progress, addressing any concerns promptly, and offering suggestions for improvement, which helps build trust and fosters a positive working relationship.
27. a) What is meant by the working height of the MEWP and b) who determines it?
a) The working height of a Mobile Elevating Work Platform (MEWP) refers to the maximum height at which a person can perform work safely while using the platform. It includes the platform height and the reach of the person operating the platform.
b) The working height of a MEWP is determined by the manufacturer and is usually specified in the equipment's documentation. It is based on the technical specifications and capabilities of the specific MEWP model.
28. The operator has been asked to drive a self-propelled MEWP onto a transporter/ trailer. a) Who is responsible for the loading operations and b) state FOUR actions to be considered by the operator before loading commences.
a) The operator is responsible for the loading operations.
b) The operator should consider the following four actions before loading commences:
1. Ensure the transporter/trailer is stable and suitable for carrying the self-propelled MEWP.
2. Check the weight and dimensions of the MEWP to ensure it does not exceed the transporter/trailer's capacity.
3. Secure all loose parts and components of the MEWP to prevent damage during transportation.
4. Inspect and confirm that the brakes, lights, and other safety features of the transporter/trailer are in proper working condition.
29. If setting up to work near a steep slope, apart from ground support: a) what could be a danger and b) what actions should be taken?
a) The danger when setting up a scissor lift near a steep slope is the risk of the machine tipping over, either downhill or sideways. This could lead to serious injuries or even fatalities.
b) To mitigate this danger, you should take the following actions:
- Use wheel chocks or stabilizers to secure the scissor lift.
- Ensure the ground is level and stable.
- Use outriggers or additional stabilizers if necessary.
- Consult the manufacturer's guidelines and follow their instructions.
- Consider using a different type of access equipment, such as a boom lift, which may be more suitable for working on steep slopes.
30. If the wearing of a safety harness or belt is required: a) where must it be attached to and b) where should the harness not be attached to?
a) The safety harness should be attached to a suitable anchor point ensuring it can support the intended load.
b) The harness should not be attached to any part of the scissor lift structure, as it may not provide adequate protection in the event of a fall.
31. If travelling near an open trench which has a depth of 2 metres, what is the minimum distance to maintain?
The minimum distance to maintain when operating a scissor MEWP near an open trench with a depth of 2 meters is typically recommended to be at least 3 meters. This is to ensure an adequate safety buffer zone to prevent the risk of any accidents or falls into the trench. Always refer to the manufacturer's guidelines and site-specific risk assessments for precise distances.
32. What are the possible outcomes of facing prosecution for not complying with legislation and regulations?
Facing prosecution for non-compliance with legislation and regulations relating to Mobile Elevating Work Platforms (MEWPs), such as scissor lifts, can have serious consequences. Possible outcomes may include fines, penalties, and in some cases, imprisonment for individuals responsible. Additionally, a conviction can lead to damage to your reputation, loss of business opportunities, and legal costs. It is crucial to prioritize compliance and ensure that you are meeting all relevant legal requirements to minimize potential adverse outcomes. Always consult legal professionals for specific guidance in your situation.
33. What does the Health and Safety at Work Act require employers to do with regards specifically to plant?
The Health and Safety at Work Act requires employers to ensure the safety of their employees when using plant equipment, including mobile elevated work platforms like scissor lifts. This includes providing proper training, instruction, and supervision for employees operating the equipment. Employers must also regularly inspect and maintain the plant equipment, ensuring it is in safe working condition. Additionally, employers should provide appropriate personal protective equipment and implement safe systems of work. Compliance with regulations and industry standards is essential to protect employees and prevent accidents.
34. Before climbing or descending a slope, what FOUR checks should be made?
Before climbing or descending a slope on a mobile elevating work platform (MEWP) with scissor mechanism, the following FOUR checks should be made:
1. Check the manufacturer's guidelines for any specific instructions related to slopes.
2. Ensure that the scissor mechanism is fully lowered and securely locked.
3. Verify that the brakes are engaged and in good working condition.
4. Assess the slope's gradient and surface conditions to determine if it is within the machine's safe operating limits.
Remember to always follow the manufacturer's recommendations and safe practices when operating any type of equipment.
35. What is the purpose of a risk assessment?
A risk assessment helps identify, evaluate and control potential hazards in the workplace. It ensures the safety and well-being of those operating or affected by the equipment. For a Mobile Elevating Work Platform (MEWP) such as a scissor lift, a risk assessment is essential to determine factors like working at height, stability, ground conditions, operator training and communication. It helps identify specific risks, plan appropriate control measures, and implement adequate safety precautions. Overall, a risk assessment is crucial for preventing accidents, complying with legal requirements, and promoting a safe working environment.
36. If raising the platform up to a ceiling of a structure, why must extra care be taken when nearing the ceiling?
Extra care must be taken when nearing the ceiling because there is a risk of collision, which could cause damage to both the platform and the ceiling. Collision could lead to structural damage, risking the safety of workers and the structural integrity of the ceiling. Furthermore, damage to the platform could result in instability and potential accidents. Therefore, caution is necessary to mitigate these risks and ensure the safe operation of the scissor lift near the ceiling.
37. Before leaving the platform for a rest break, after parking and switching off the machine, what final action must be carried out?
Before leaving the Scissor Mobile Elevating Work Platform for a rest break, make sure the platform is securely parked and the machine is switched off. Additionally, the final action that must be carried out is to lower the platform to its lowest position to ensure stability and prevent any movement or accidental operation in your absence.
38. When checking fluid levels, why must gloves be worn?
Gloves should be worn when checking fluid levels on a scissor mobile elevating work platform (MEWP) for safety reasons. Fluids such as hydraulic oil can be hazardous and can cause skin irritation or chemical burns if they come into contact with the skin. Wearing gloves helps protect the hands and prevent any potential harm. It's important to prioritize safety measures to avoid unnecessary risks.
39. If setting up to lift in a pedestrianised area, state TWO factors that need to be taken into account.
When setting up a scissor mobile elevating work platform (MEWP) in a pedestrianised area, it is important to consider two factors. Firstly, the weight capacity of the platform must be sufficient to safely lift the required load and equipment. Secondly, the size and dimensions of the scissor MEWP should be taken into account to ensure it can navigate and operate within the pedestrianised area without causing obstructions or endangering pedestrians. These factors, alongside any additional local regulations or guidelines, should be carefully considered to ensure the safe and efficient use of the scissor MEWP in a pedestrianised area.
40. If setting up to work near a bank, what is the recommended distance between the stabilisers or wheels and the top of the bank?
The recommended distance between the stabilizers or wheels of a scissor lift and the top of a bank when setting up to work near it may vary depending on the specific conditions and the manufacturer's instructions. It is advisable to refer to the scissor lift's operating manual or consult with a qualified professional to determine the appropriate distance in order to ensure safe working conditions and stability.
41. When setting up for work, what should be in place should machine failure happen?
When using a scissor lift as a Mobile Elevating Work Platform (MEWP), it is important to have measures in place in case of machine failure. This includes having a suitable means of emergency descent, such as an auxiliary power unit or a secondary braking system. Additionally, make sure that there is a reliable and tested communication system to allow the operator to contact someone for assistance in case of failure. A rescue plan, involving trained personnel and suitable equipment for rescue operations, should also be developed and communicated to all workers on-site.
42. Apart from the operator, who else may need to use the machine's Operator's Manual?
Other personnel who may need to use the machine's Operator's Manual include maintenance technicians, safety officers, and supervisors. It is essential for anyone responsible for the maintenance, inspection, or operation of the mobile elevating work platform (MEWP) to familiarize themselves with the Operator's Manual. The manual provides important information on proper operation, maintenance procedures, safety guidelines, and emergency protocols. Ensuring that all relevant individuals have access to and are familiar with the Operator's Manual can help promote safe and efficient use of the MEWP.
43. Give TWO reasons why it is important that a MEWP is not leaning sideways before attempting to raise the platform.
It's important for a MEWP to be balanced before raising the platform due to safety reasons. First, if the machine is leaning sideways, it can cause instability, increasing the risk of tipping over. Second, a leaning MEWP can put additional stress on the lifting mechanism, potentially causing damage or malfunctions. Ensuring the machine is level and not leaning sideways is crucial to maintain stability and prevent accidents or equipment failure.
44. Before taking passengers up in a MEWP, what should be ensured about the individual or individuals?
Before taking passengers up in a MEWP, ensure that the individual or individuals have received appropriate training and are authorized to operate the platform. They should also be briefed on the specific safety requirements and precautions for using the scissor lift model. It's crucial to verify that they have appropriate personal protective equipment (PPE) and are aware of safe working practices, including proper positioning and weight limits. Additionally, check that the platform is suitable for carrying passengers and that it has been inspected and maintained in accordance with the manufacturer's recommendations.
45. If a scissor is equipped with extending decks, what does this allow?
Extending decks on a scissor lift allow for increased platform space, allowing the operator to reach areas that may otherwise be difficult to access. This adds flexibility and improves efficiency when working at height.
46. Name TWO factors that determine the weight of a load.
The two factors that determine the weight of a load are the density and volume of the load.
47. List SIX typical subject areas that should be covered in a site induction.
1. Health and safety procedures: Including emergency protocols, hazard identification, and reporting mechanisms.
2. Equipment operation: Covering safe usage of the mobile elevating work platform (MEWP), including loading capacity, controls, and safety features.
3. Site-specific rules: Addressing specific site regulations, restricted areas, and access points.
4. Personal protective equipment (PPE): Informing workers about the necessary PPE, such as hard hats, high visibility jackets, and safety boots.
5. Worksite communication: Detailing communication channels, including radios, hand signals, and emergency contact information.
6. Evacuation procedures: Outlining evacuation routes, assembly points, and roles and responsibilities during an emergency.
48. Why should a diesel MEWP be re-fuelled at the end of the day?
Refueling a diesel Mobile Elevating Work Platform (MEWP) at the end of the day ensures that it is ready for use the next day. Diesel MEWPs have fuel tanks specifically designed for their operation, and running them with insufficient fuel may damage the engine and affect its performance. Refueling at the end of the day ensures the MEWP has enough fuel for the next day's work and prevents unexpected interruptions or delays. Additionally, it is generally good practice to keep equipment fully fueled and ready for use to maintain efficiency and productivity on the construction site.
49. On IC engines, during work, the engine starts to overheat. Explain the danger if someone tries to remove the radiator or expansion tank cap.
The danger of removing the radiator or expansion tank cap on an IC engine that is overheating is potential scalding or burning from hot coolant or steam being released under pressure. The high temperature and pressure in the cooling system can cause the coolant to rapidly boil and spray out, leading to severe burns. Additionally, removing the cap could result in a sudden release of pressure, potentially causing coolant or steam to forcefully spray out, increasing the risk of injury. It is important to wait for the engine to cool down before attempting to remove any cooling system components.
50. Name FOUR ways that wet weather affects MEWP operations.
Wet weather affects MEWP operations in numerous ways. Firstly, it causes slippery surfaces, making it harder to maintain stability and increasing the risk of accidents. Secondly, rain can reduce visibility, impacting the operator's ability to navigate safely. Additionally, wet conditions can compromise the structural integrity of the ground, potentially leading to uneven surfaces and decreased stability for the MEWP. Lastly, rain can interfere with electrical components and increase the risk of electrical hazards, necessitating additional safety precautions.
51. What is the meaning of this hand signal (being demonstrated by the Tester)?
The hand signal represents the scissor motion made by the platform on a Mobile Elevating Work Platform (MEWP).
52. When can a MEWP work (i.e. raise the platform) on sloping ground?
A MEWP can work on sloping ground if it is specifically designed for such use. Some MEWPs have features like self-leveling capabilities or tracks that allow operation on uneven surfaces. However, it is crucial to consult the manufacturer's instructions and guidelines to ensure safe and proper usage on sloping ground. The slope angle and conditions should be within the specified limits for the particular MEWP model. It is advised to have a competent person assess the ground conditions and monitor the equipment while in use on slopes.
53. If using a MEWP in an area where there are moving vehicles, state THREE precautions to be taken.
1. Install physical barriers, such as traffic cones or safety fences, around the work area to clearly mark the boundaries and alert drivers to stay clear.
2. Ensure proper visibility by using hazard warning lights and highly visible signage that warns drivers of the presence of a MEWP in operation.
3. Implement a traffic management plan to establish safe access and egress routes for both the MEWP operators and other vehicles, ensuring sufficient space and clear communication to prevent collisions.
54. How can high wind speeds affect MEWP operations?
High wind speeds can greatly impact MEWP operations. The stability of a scissor MEWP can be compromised by strong winds, posing a safety risk. Wind can cause the platform to sway or tip over, potentially endangering the operator and those nearby. It is crucial to consult the manufacturer's guidelines for the specific wind speed limits that the MEWP can safely operate in. Operators should also closely monitor weather conditions and suspend operations if wind speeds exceed the maximum limits. Regular training and awareness of wind-related hazards can help to minimize risks when operating MEWPs in high winds.
55. State the purpose of the check valve(s) located on the scissor cylinder ram (or rams).
The check valve(s) on the scissor cylinder ram(s) in a Mobile Elevating Work Platform (MEWP) like a scissor lift serve to prevent the sudden lowering of the platform in case of a hydraulic system failure or a loss of hydraulic pressure. This helps to maintain the elevated position of the platform and ensure the safety of the operator and anyone else on the lift.
56. What determines whether a (fall-protection) harness can be worn when operating a MEWP scissor and the type?
The requirement for wearing a fall-protection harness while operating a Mobile Elevating Work Platform (MEWP) scissor and the specific type allowed is dependent on regulatory guidelines and the manufacturer's instructions. It is essential to consult the relevant health and safety legislation, such as the Work at Height Regulations, and refer to the MEWP manufacturer's guidelines. These documents will outline the specific requirements for fall protection and whether wearing a harness is necessary. Additionally, considering the platform's design and the risks involved in the specific work environment can also influence the decision on wearing a harness.
57. How can a qualification or card benefit a plant operator?
A qualification or card can benefit a plant operator by demonstrating their competency in operating a mobile elevating work platform (MEWP) - specifically, a scissor lift. This increases their employability as employers often require operators with the necessary certifications. Additionally, it ensures that the operator can safely and efficiently operate the equipment, reducing the risk of accidents or damage. Obtaining a qualification or card also provides the operator with a formal recognition of their skills, which can lead to better career opportunities and potentially higher wages. Ultimately, it enhances the operator's professional reputation and increases their value in the industry.
58. Using the Operator's Manual, state the figure for the tyre pressures or battery checks procedure. Note: The Operator's Manual for the machine being used for the test MUST be available for reference by the candidate.
The figure for tyre pressures or battery checks can be found in the Operator's Manual. It is important for the candidate to have access to the manual during the test.
59. What is the definition of, or how can a hazard be described?
A hazard is anything that has the potential to cause harm or injury. In the context of a mobile elevating work platform (MEWP) like a scissor lift, hazards can include falls from height, tipping or overturning, electrical hazards, and collisions. Hazards can also arise from incorrect operation, lack of training, poor maintenance, or inadequate safety features. It is crucial to identify and assess hazards to implement appropriate measures for their control and mitigation. This ensures the safety of workers and minimizes the risk of accidents or injuries.
60. When or why would foam-filled tyres be specified for platform operations?
Foam-filled tyres may be specified for platform operations to eliminate the risk of punctures and ensure continuous operability. They are suitable when there is a higher chance of encountering sharp objects or debris on the work surface. Foam-filled tyres provide increased stability, especially on rough terrain, as they offer a consistent level of pressure. Additionally, they require less maintenance compared to pneumatic tyres. It is important to consider the specific working conditions and consult manufacturer guidelines before specifying foam-filled tyres.
61. Name THREE ways in which an operator can minimise their impact upon the environment whilst using the machine.
Three ways in which an operator can minimize their impact on the environment while using a mobile elevating work platform (MEWP) scissor:
1. Efficient Use: Operators should use the scissor platform only when necessary, optimizing work time and minimizing idle running. This reduces fuel consumption and emissions.
2. Maintenance: Regular maintenance ensures proper functioning of the scissor, reducing fuel consumption and emissions. Proper disposal of waste materials generated during maintenance also minimizes environmental impact.
3. Noise Reduction: Operators can avoid unnecessary noise pollution by using electric-powered scissor platforms, which are quieter and produce fewer emissions than their diesel-powered counterparts.
62. Apart from ground conditions, list FIVE checks that must be taken into account when siting the MEWP.
When siting a Mobile Elevating Work Platform (MEWP), in addition to ground conditions, there are five essential checks to consider:
1. Stability: Ensure that the MEWP is on a stable surface and the outriggers or stabilizers are properly deployed for maximum stability.
2. Overhead Obstructions: Assess the surrounding area for any overhead obstructions, such as power lines, trees, or building structures, which may pose a risk to the MEWP.
3. Clearance: Take into account the space required for the MEWP's movement, including the reach of the platform, and ensure there is sufficient clearance from any obstacles.
4. Ground Slope: Check the ground slope and determine if it is within the specified limits for the MEWP, as excessive slopes can affect the stability and safe operation of the vehicle.
5. Access and Egress: Evaluate the accessibility and suitability of the intended route for the MEWP to enter and exit the working area, considering factors such as gates, ramps, or narrow passageways that may impose restrictions.
63. When raising the platform or travelling with a raised platform, what ongoing checks need to be made?
When raising the platform or moving with a raised platform on a mobile elevating work platform (MEWP) scissor lift, several ongoing checks should be performed. These include examining the safety harness and properly securing it, inspecting the guardrails for stability and condition, ensuring the emergency stop button is functional, confirming that the controls are in proper working order, and regularly inspecting the tires for any signs of damage or wear. Additionally, it is important to conduct a visual check of the surrounding area for any potential hazards or obstructions that may impact the safe operation of the scissor lift.