CPCS Excavator 360° below 10 tonnes (A58) Theory Test Questions & Answers

  • 87 Questions and Answers
  • 8170 Words
  • Up-to-date for 2025
Get full access now for just £19.99

1. According to legislation, when are check valves and a rated capacity or load moment indicator required?

Check valves are required on the boom, dipper, and bucket cylinders of an excavator 360° below 10 tonnes. A rated capacity or load moment indicator is required when lifting operations occur and the work is carried out by multiple people.

2. If travelling with a load, name FIVE factors that must be taken into account by the operator before moving.

When operating an excavator weighing below 10 tonnes and travelling with a load, the operator must consider five key factors. Firstly, the weight and stability of the load to ensure it is within the machine's safe lifting capacity. Secondly, the ground conditions to ensure they are suitable to support the load. Thirdly, the route to be taken, ensuring there are no obstacles or hazards that could impede safe movement. Fourthly, any overhead hazards such as power lines that need to be avoided. Lastly, communication with other workers operating in the vicinity to ensure their safety.

3. Before lowering into or moving a drag box into a trench, what trench-related checks must be made?

Before lowering or moving a drag box into a trench, you should check the trench for stability, obstructions, and water accumulation. Ensure the trench sides are properly supported to prevent collapse using shoring or trench boxes. Watch out for any gas, water, or utility lines in the vicinity. Check for any loose soil or debris that could cause instability. Remove any standing water from the trench to prevent hazards. Conduct thorough inspections to ensure the safety of the trench before proceeding with lowering or moving a drag box.

4. The safe working load (SWL) or working load limit (WLL) of a multi-leg chain sling only applies in what TWO conditions or configuration?

The safe working load (SWL) or working load limit (WLL) of a multi-leg chain sling applies in two conditions or configurations: when the legs are straight and vertical, and when the load is evenly distributed among the legs.

5. What effect can a swinging load have on an excavator?

A swinging load can negatively affect the stability of an excavator. It can cause the machine to become unbalanced, leading to a risk of tipping over. The swinging load also puts stress on the excavator's boom, stick, and other parts, potentially damaging them. To maintain safety, it's important to secure loads properly and avoid swinging motions. Regular checks and maintenance of the excavator's components are vital for ensuring their integrity and minimizing the risk of accidents.

6. If setting up to excavate in a confined area, name TWO things that should be taken into account before starting.

Register to view the answer to this question

When setting up to excavate in a confined area using a 360° excavator below 10 tonnes, two important things to consider are:
1. Assess the ground stability to ensure it can support the excavator's weight and provide a stable working platform. This can be done by conducting a thorough site investigation and considering soil type, moisture content, and any potential underground utilities or obstructions.
2. Evaluate the overhead obstructions or constraints, such as power lines, trees, or structures, to ensure there is adequate clearance for the excavator's boom arm and that it can operate safely without causing damage or hazards.

7. 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.

Register to view the answer to this question

a) The minimum distances that any part of plant and machinery, such as an excavator 360° below 10 tonnes, has to be kept from overhead electricity lines are determined by regulations and guidelines established for health and safety purposes. These distances are set to minimize the risk of contact between the machinery and the electricity lines, which can result in electrocution or other serious accidents.

b) It is important to maintain a distance from overhead electricity lines to ensure the safety of workers and the integrity of the electricity lines. The electricity lines carry high voltage electricity, which can be dangerous if there is contact. Keeping a distance reduces the risk of accidents and protects against damage to the electricity lines, ensuring a safe working environment.

8. Give THREE reasons why an oversize bucket should not be used when excavating trenches to specification.

Register to view the answer to this question

Using an oversize bucket when excavating trenches to specification could lead to several issues. Firstly, an oversize bucket can result in a wider trench, which may not meet the required dimensions. This could affect the stability and functionality of the trench, posing a safety risk. Secondly, an oversize bucket can remove excessive amounts of soil, potentially weakening the surrounding structures or underground services. Lastly, an oversize bucket may make it difficult to maintain the required vertical or sloping sides of the trench, further compromising its integrity. Therefore, it is advisable to use an appropriately sized bucket to ensure compliance with trench specifications.

9. If the machine is being travelled or working on the public highway, the Road Traffic Act applies. a)  What type of licence and which class should the operator hold and b)  what is the minimum age allowed?

Register to view the answer to this question

a) The operator should hold a valid driving licence appropriate for the class of vehicle being operated on the public highway. The specific class required depends on the weight of the vehicle.
b) The minimum age allowed for operating an excavator 360° below 10 tonnes on the public highway is 17 years old.

Note: The Road Traffic Act applies when the machine is being travelled or working on the public highway.

10. If attaching accessories to a quick-hitch coupler, give TWO reasons why the coupler should be tilted in the downwards position (ram extended)?

Register to view the answer to this question

Tilting the quick-hitch coupler in the downwards position (ram extended) when attaching accessories provides stability and ensures a secure connection. Stability is increased as the weight of the attachment is lowered, reducing the risk of the coupler becoming unbalanced. The downward tilt also helps align the attachment with the ground, aiding in a smooth and accurate connection.

11. Using the Operator's Manual, state the cold-starting procedure for the machine. Note: The Operator's Manual for the machine being used for the test MUST be available for reference by the candidate.

Register to view the answer to this question

Consult the Operator's Manual for the correct cold-starting procedure of the excavator. Make sure the manual is readily accessible for the candidate to refer to during the test.

12. During work, the engine starts to overheat. Explain the danger if someone tries to remove the radiator or expansion tank cap.

Register to view the answer to this question

Attempting to remove the radiator or expansion tank cap of an overheating excavator 360° below 10 tonnes during work is dangerous due to the risk of scalding or burning. The coolant within the system can be at high temperatures and under pressure, and removing the cap can result in sudden release of hot coolant, causing severe injuries. It is advised to let the engine cool down before attempting any maintenance on the cooling system and to seek professional assistance if needed.

13. State the purpose of the check valve(s) located on the boom cylinder rams.

Register to view the answer to this question

The check valve(s) on the boom cylinder rams of an excavator 360° below 10 tonnes serve the purpose of preventing the boom from collapsing unexpectedly in the event of a hydraulic system failure, such as a sudden loss of pressure. The check valve(s) allow the boom to hold its position and provide safety by keeping it in place until the hydraulic system can be repaired.

14. What THREE main duties of the Health and Safety at Work Act must employees follow?

Register to view the answer to this question

Employees must follow three main duties outlined in the Health and Safety at Work Act. First, they must take reasonable care of their own health and safety as well as others who may be affected by their actions. Second, employees must cooperate with their employer and follow any instructions or procedures that are in place to promote health and safety. Lastly, employees must not misuse or intentionally interfere with any equipment or safety measures that have been provided for their protection.

15. Describe ONE physical method of checking that a bucket is fully secured to the quick-hitch coupler prior to work.

Register to view the answer to this question

One physical method of checking that a bucket is fully secured to the quick-hitch coupler is by visually inspecting the locking pins or locking mechanisms on the coupler to ensure they are engaged and locked in place.

16. What factors determine the shoring requirements of a trench?

Register to view the answer to this question

The shoring requirements of a trench depend on various factors, including the soil type, depth of the trench, weather conditions, proximity to existing structures, and the presence of groundwater. Soil type is particularly important, as cohesive soils (e.g. clay) require more support than granular soils (e.g. sand). Other factors like water content and stability of adjacent structures also play a role. Input from a geotechnical engineer or an experienced shoring specialist is essential to determine the exact requirements for a specific trench. Safety regulations and guidance from relevant authorities should be followed to ensure a secure working environment.

17. Using the lifting capacity diagram for A58: a)  what is the maximum lifting capacity at a 4 m radius over the sides of the track with the load at a height of 1 m b)  what effect does fitting a bucket have on the lifting capacity c)  what effect does the dozer blade have on the lifting capacity?

18. What is the nearest distance allowed to gas pipes when excavating with the machine?

Register to view the answer to this question

The nearest distance allowed to gas pipes when excavating with a 360° excavator below 10 tonnes depends on the guidelines and regulations set by the relevant authorities. It is important to consult with gas providers and follow their specific requirements. Generally, a minimum distance of 500mm (0.5 meters) is often recommended, but it is essential to confirm this information with the gas provider and comply with all necessary safety measures during excavation work.

19. Why should long loads be lifted using a swivelling type lifting accessory?

Register to view the answer to this question

Long loads should be lifted using a swiveling type lifting accessory with an excavator 360° below 10 tonnes because it allows for easier maneuverability and positioning of the load. This type of accessory allows the load to be rotated and aligned properly, ensuring safer lifting and minimizing the risk of damage or instability during the lifting process. It also provides better control and enhances the overall lifting capacity of the excavator, making it more efficient and effective in handling long loads.

20. Many smaller excavators have the ability to slew the boom (mounted on a king post) relative to the cab/upper structure. Give one application where this facility may be used.

Register to view the answer to this question

One application where the ability to slew the boom on a smaller excavator may be used is when working in tight spaces. Slew allows the operator to rotate the boom without needing to reposition the entire machine, making it easier to work in confined areas or around obstacles. This can be particularly useful in urban environments or when working on projects with limited access.

21. If setting up to work in a pedestrianised area, state THREE factors that need to be taken into account.

Register to view the answer to this question

When setting up an excavator 360° below 10 tonnes to work in a pedestrianised area, three factors to consider are:

1. Traffic management: Ensure appropriate measures are in place to control and divert pedestrian traffic safely away from the work area, such as barriers, signage, and designated walkways.

2. Noise and vibration: Implement measures to minimize noise and vibration levels generated by the excavator to prevent disturbance to nearby residents and businesses.

3. Site access: Assess the accessibility of the site for the excavator and plan any required modifications or arrangements to ensure smooth entry, navigation, and exit without causing obstruction or damage in the pedestrianised area.

22. What makes up the total (or gross) weight of a load that is to be lifted?

Register to view the answer to this question

The total weight of a load that needs to be lifted by an excavator 360° below 10 tonnes consists of several components. These typically include the weight of the object being lifted, any additional attachments or equipment being used, and any material or substances being carried within or on the load. It is important to have an accurate understanding of the total weight to ensure safe lifting operations and determine the appropriate capacity of the excavator.

23. If the accessory attachment point is not part of the bucket, give TWO reasons why it should be removed.

Register to view the answer to this question

There are two reasons why an accessory attachment point should be removed if it is not part of the excavator bucket. Firstly, removing the attachment point eliminates any potential safety hazards during operation and transportation of the excavator. It reduces the risk of accidental entanglement or damage to surrounding objects. Secondly, removing the attachment point improves the overall stability of the excavator by reducing the excess weight and potential stress on the boom arm. This ensures optimal performance, reduces strain on the equipment, and minimizes the chance of any structural damage.

24. Who determines the lifting/object handling capacity of the machine?

Register to view the answer to this question

The lifting/object handling capacity of an excavator 360° below 10 tonnes is determined by the manufacturer. It is important to refer to the machine's specifications provided by the manufacturer for accurate information on its lifting capacity.

25. Name THREE ways that a plant operator can contribute in ensuring repeat business with the client or principal contractor.

Register to view the answer to this question

A plant operator can contribute to repeat business with the client or principal contractor by:
1. Demonstrating excellent communication skills to ensure clear understanding of project requirements and expectations.
2. Completing tasks efficiently and on time, to avoid delays and ensure project deadlines are met.
3. Maintaining the equipment in good condition, carrying out regular inspections and reporting any issues promptly to minimize downtime. This will help build trust and confidence in the operator's ability to deliver quality work consistently, increasing the likelihood of repeat business.

26. Why is it important that the bucket/attachment is lowered and the engine switched off before the operator exits the cab?

Register to view the answer to this question

Lowering the bucket and switching off the engine before exiting the cab of an excavator 360° below 10 tonnes is important for safety reasons. This ensures that the bucket is not left raised and potentially poses a risk of falling or causing damage. Switching off the engine prevents unauthorized use or accidental operation of the machine while unattended. It's necessary to follow these procedures to maintain a safe working environment and prevent accidents. Always prioritize safety protocols when operating heavy machinery.

27. Why must the seat belt be worn, even with the cab door closed?

Register to view the answer to this question

The seat belt must be worn, even with the cab door closed, to ensure the operator's safety. Accidents can occur even with the door closed, and the seat belt helps to prevent the operator from being ejected from the seat. It is a safety measure to reduce the risk of injury in case of unexpected movement or rollover of the excavator. Always wearing the seat belt is a standard practice in the construction industry and helps protect the operator in hazardous situations.

28. What particular and specific hazards can affect the stability of the machine when working on old industrial (brownfield) sites?

Register to view the answer to this question

When working on old industrial sites, hazards that can affect excavator stability include:
1. Unstable ground due to soil erosion or underground structures.
2. Presence of underground utilities that can cause machine imbalance.
3. Changes in ground conditions, such as variations in soil strength or gradients.
4. Potential for encountering hidden debris or abandoned foundations.
5. Increased risk of excavation collapse due to the uncertain structural integrity of old buildings or structures.
6. Limited visibility due to overgrown vegetation or obscured sight lines.
7. Possible contamination of soil or groundwater.
To mitigate these hazards, site surveys, inspections, and the implementation of appropriate safety protocols are necessary.

29. What needs to be inspected on a quick-hitch coupler if attaching lifting accessories for the lifting of slung loads?

Register to view the answer to this question

When attaching lifting accessories for slung loads, inspect the quick-hitch coupler for any defects, cracks, or damage. Ensure it is securely locked and compatible with the lifting accessories. Check the safety pins, bolts, and locking mechanisms for proper functioning. Examine the lifting points and check for wear or deformation. Verify that the coupler's capacity is suitable for the load to be lifted. Follow the manufacturer's guidelines and consult the relevant safety regulations. Keep a record of inspections and maintenance carried out on the quick-hitch coupler.

30. a)  What is the purpose of a Method Statement and b)  what is required of the operator?

Register to view the answer to this question

a) The purpose of a Method Statement is to outline the safe and systematic approach to carrying out a specific construction activity. It documents the sequence of tasks and identifies potential hazards, along with the control measures to mitigate them. It helps ensure that work is carried out efficiently, safely, and in compliance with legal and industry regulations.

b) The operator of an excavator 360° below 10 tonnes is required to be competent and trained in operating the machine. They must follow the Method Statement, operate the excavator safely, and adhere to all relevant safety guidelines. Regular inspection and maintenance of the machine are also necessary to ensure its safe operation.

31. What is the purpose of the counterweight of the machine?

Register to view the answer to this question

The counterweight on an excavator 360° below 10 tonnes is to maintain stability while digging. It balances the weight of the excavator's arm and bucket, preventing the machine from tipping over.

32. If a yellow-coloured marker tape is unearthed during excavating, which TWO types of services could this indicate?

Register to view the answer to this question

If a yellow-coloured marker tape is found during excavation, it could indicate two types of services: gas and electric cables. It is important to exercise caution and inform the relevant authorities before proceeding with any further excavation to avoid potential damage and ensure safety.

33. Manufacturers' lifting or object handling capacity charts apply (in all known cases) when the machine is level. What is the effect if a load is lifted or travelled facing downhill on a downhill slope?

Register to view the answer to this question

Lifting or moving a load facing downhill on a downhill slope can lead to instability and potential safety hazards. The weight distribution and balance of the excavator may be affected, increasing the risk of tipping over. It is crucial to follow the manufacturer's guidelines and have proper understanding of the machine's limitations. If you need to lift or move loads on a slope, consult the manufacturer's recommendations and consider implementing additional safety measures, such as using counterweights or securing the machine to prevent tipping. Safety is paramount when working with excavators on slopes.

34. If the operator has to top-up the hydraulic oil, state TWO precautions to ensure cleanliness of the system.

Register to view the answer to this question

To ensure cleanliness of the hydraulic system when topping up hydraulic oil in a 360° excavator below 10 tonnes, two precautions should be taken:

1. Clean Environment: It is important to carry out the oil top-up in a clean environment to prevent contaminants from entering the system. The area should be free from dirt, dust, and other debris that could potentially contaminate the hydraulic oil.

2. Clean Tools: Use clean tools, such as a clean funnel or a dedicated hydraulic oil dispenser, to avoid introducing contaminants into the system. Ensure that the tools used have been properly cleaned and are free from any dirt or debris that may compromise the cleanliness of the hydraulic oil.

35. What is regarded as the danger or hazard zone during a lifting operation?

Register to view the answer to this question

The danger or hazard zone during a lifting operation for an excavator 360° below 10 tonnes includes the area immediately around the excavator and the range of its movements, including the swing radius. It is critical for people to stay clear of this zone to prevent injury or accidents.

36. When an object needs to be lifted on a site, what should be the first consideration of planning?

Register to view the answer to this question

The first consideration when planning to lift an object on a site with a 360° excavator below 10 tonnes should be the weight of the object. Ensure that the excavator has the capacity to safely lift and handle the weight of the object. Additionally, consider the stability of the excavator on the terrain and assess if any additional support measures, such as outriggers, are required. Proper training and certification of the operator is also essential. Lastly, assess the surrounding area for any obstacles or overhead hazards that may interfere with the lifting operation.

37. Why should different soils be segregated during excavating?

Register to view the answer to this question

Different soils should be segregated during excavating to ensure proper management and disposal. It helps to prevent contamination, maintain site safety, and comply with environmental regulations. Different soils can have varying characteristics such as moisture content, stability, and contaminant levels. Segregation allows for proper classification, treatment, and disposal of the different soils, reducing the risk of cross-contamination and potential harm to the environment. It also enables efficient and cost-effective disposal options, such as reusing or recycling certain soils. Proper segregation ensures responsible excavation practices and minimizes environmental impact.

38. If checking the oil level using a dipstick, why must gloves be worn?

Register to view the answer to this question

Gloves must be worn while checking the oil level with a dipstick on an excavator 360° below 10 tonnes to protect the hands from potential contaminants, such as dirt, debris, or hot oil, that may be present on the dipstick. It also helps maintain a clean and safe working environment.

39. The operator is asked to excavate a new trench. State FIVE different requirements that must be considered or implemented before work commences.

Register to view the answer to this question

1. Ensure a thorough inspection and maintenance of the excavator, including checking the hydraulics, controls, and safety devices, to ensure it is in optimal working condition.
2. Conduct a site survey to identify any potential hazards, such as underground utilities, unstable ground conditions, or overhanging structures, and implement appropriate safety measures to mitigate these risks.
3. Provide the operator with appropriate training, certification, and competency to operate the excavator safely and efficiently.
4. Develop a safe system of work, including establishing a clear and marked exclusion zone around the working area, proper means of access and egress, and effective communication procedures.
5. Prepare and communicate a comprehensive method statement to guide the excavator operation, outlining key steps, safety precautions, and any specific instructions or limitations.

40. Cable avoidance tools (CATs) can detect a variety of buried services. What type of material do they have limitations in locating?

Register to view the answer to this question

Cable avoidance tools (CATs) may have limitations in locating non-metallic or plastic buried services.

41. Why must excavator operators not begin to load vehicles until the forward-tipping dumper driver is clear of their machine?

Register to view the answer to this question

Excavator operators should not begin loading vehicles until the forward-tipping dumper driver is clear because it can be dangerous. The dumper driver could get injured if they are hit by the excavator's bucket or the vehicle being loaded. It is important to ensure a safe working environment and avoid accidents by waiting for the dumper driver to move to a safe distance before starting to load the vehicles.

42. If the load inadvertently or accidentally lands, what course of action should be taken?

Register to view the answer to this question

If a load inadvertently lands, stop all work immediately and ensure the safety of all personnel in the area. Assess the situation to determine the cause and extent of the incident. Contact the appropriate authorities, such as the site manager or supervisor, to report the incident. Take steps to secure the load and prevent any further accidents or injuries. Investigate the incident to identify any underlying causes or potential improvements to prevent similar incidents in the future. Follow any relevant health and safety regulations and procedures during the process.

43. On a semi-automatic quick-hitch bucket attaching system: a)  what is the purpose of the safety pin and b)  what checks MUST be made to the pin before use?

Register to view the answer to this question

a) The purpose of the safety pin on a semi-automatic quick-hitch bucket attaching system is to provide an additional safety measure by securing the attachment to the excavator.
b) The checks that MUST be made to the pin before use include ensuring that it is undamaged and in good working condition, that it fits securely into the attachment and the excavator, and that it is properly engaged and locked in place. Additionally, the pin should be checked to ensure it is the correct size and length for the specific attachment and excavator.

44. On both tracked and wheeled types: a)  what differs between lifting over the side compared to over the front or the rear of the machine? b)  Explain why.

Register to view the answer to this question

a) The main difference between lifting over the side compared to over the front or rear of an excavator is the machine's stability. Lifting over the side puts the machine at the greatest risk of tipping as the weight is not centered. Lifting over the front or rear allows for more stability as the weight is distributed more evenly across the machine's tracks or wheels.
b) This is because the excavator's tracks or wheels provide support and stability when lifting over the front or rear. When lifting over the side, the weight is further away from the center of gravity, making it more likely to cause imbalance and potential tipping of the machine.

45. What is the main purpose of the Rated Capacity Indicator (RCI) or Load Moment Indicator (LMI)?

Register to view the answer to this question

The main purpose of the Rated Capacity Indicator (RCI) or Load Moment Indicator (LMI) on an excavator 360° below 10 tonnes is to provide a warning to the operator when the machine is approaching its maximum lifting capacity. It helps prevent overloading and tipping, improving safety on the construction site. The RCI or LMI uses sensors and data about the machine's configuration and load to calculate and display the current load and the safe working limits. It is a crucial tool for ensuring that the excavator is operated within its safe operating parameters.

46. What does the Health and Safety at Work Act require employers to do, specifically regarding plant?

Register to view the answer to this question

The Health and Safety at Work Act requires employers to ensure that any plant used by their workers is maintained in safe condition, free from risks to health. They must also provide adequate information, instruction, and training to their employees, so that they can safely operate and use the plant. Employers are responsible for ensuring that any plant is used only by workers who have received the proper training and have the necessary competence. Additionally, employers must ensure that the plant is properly inspected and tested, and that any defects or issues are promptly addressed.

47. Explain ALL visual checks that must be carried out on all types of quick-hitch bucket attaching systems before use.

Register to view the answer to this question

Visual checks for quick-hitch bucket attaching systems on excavators under 10 tonnes include:

1. Inspect the quick-hitch mechanism for any signs of damage, wear, or misalignment.
2. Check that all safety pins and locks are in place and secure.
3. Ensure the locking mechanism is fully engaged and functioning correctly.
4. Examine the condition of the bucket and ensure it is free from any damage or defects.
5. Verify that all hydraulic hoses and connections are in good condition and not leaking.
6. Check for any signs of excessive wear or movement in the attachment points.
7. Inspect the control levers and cables for proper operation.

Remember, always consult the manufacturer's guidelines for specific requirements.

48. If the excavator is carrying out deep excavating work using the full working range, what hazard may occur?

Register to view the answer to this question

A hazard that may occur during deep excavating work using the full working range of a 360° excavator below 10 tonnes is instability. The excavator's stability could be compromised due to factors such as the weight and distribution of the excavated material, the ground conditions, or the positioning of the machine. This could result in a potential risk of the excavator tipping over or collapsing, endangering the safety of the operator and others in the vicinity. Ensuring proper training, adherence to safe working practices, and regular maintenance is crucial to mitigate this hazard.

49. The operator has to fit and use a new bucket using a quick-hitch coupler that they are unfamiliar with. What do Regulations (i.e. PUWER 98) and other guidance require the operator to have?

Register to view the answer to this question

Regulations (PUWER 98) and guidance require the excavator operator to have appropriate training and competence in using the quick-hitch coupler. Additionally, the operator should receive familiarization and instruction on the specific make and model of the coupler. It is important to ensure that the operator understands the safe operating procedures and any potential risks associated with using the coupler. Regular equipment inspections and maintenance should also be carried out to ensure the safety and reliability of the coupler system.

50. If the operator has loaded the machine onto a transporter/trailer on behalf of a driver, what checks must be carried out before they leave the cab?

Register to view the answer to this question

Before leaving the cab, the operator must perform a quick check to ensure that the excavator is securely and safely loaded onto the transporter/trailer. This includes checking if the excavator is properly positioned, all attachments are properly secured, and any outriggers or stabilizers are retracted. Additionally, the operator should ensure that the transport locks are engaged if required. It is essential to follow the manufacturer's guidelines and any relevant legal requirements when performing these checks to ensure the safe transportation of the excavator.

51. 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.

Register to view the answer to this question

Four types of disciplinary actions or sanctions that can be applied to non-compliant plant operators are written warnings, suspension, termination of employment, and legal prosecution. Employers may issue written warnings as a first step to rectify non-compliance. If the issue persists, the employer can suspend the operator, temporarily preventing them from operating the plant. In severe cases, employment termination may be considered. Legal prosecution can also be pursued if there is a serious breach of legislation and regulations, resulting in penalties or fines imposed by judicial bodies.

52. Before manually changing any bucket: a)  where should the bucket be positioned (in relation to the ground) before removing the final pin and b)  explain why?

Register to view the answer to this question

a) The bucket should be positioned close to the ground before removing the final pin.
b) This will minimize the strain on the hydraulic system when detaching the bucket, as the weight will be supported by the ground. It will also make it easier to remove the final pin safely, reducing the risk of accidents or damage to equipment.

53. Name TWO types of equipment used to ensure that excavation levels, measurements and positions are to the required specification.

Register to view the answer to this question

Two types of equipment used to ensure excavation levels, measurements, and positions are to the required specification are laser levels and total stations. Laser levels project a horizontal or vertical beam of light to establish a precise reference point for measurement. Total stations combine the functionality of a theodolite and an EDM (electronic distance measurement) device, allowing for accurate positioning and measurement of distances, angles, and elevations.

54. Using the operator's manual, state the figure for setting track tension. For wheeled units, state the tyres' operating pressure. Note: The operator's manual for the machine being used for the test must be available for reference by the candidate.

Register to view the answer to this question

Please consult the operator's manual for the specific excavator model being used to obtain the appropriate figure for setting track tension. Similarly, the operating pressure for the tyres of wheeled units can be found in the operator's manual. It is essential to have the manual readily accessible for reference during the test.

55. Describe TWO actions to be taken for an open trench at the end of a working day.

Register to view the answer to this question

At the end of a working day, two actions for an open trench are:
1. Secure the trench with suitable barriers or fencing to prevent unauthorized access and ensure safety.
2. Cover any exposed or hazardous areas of the trench, such as with metal or wooden plates, to prevent accidents or damage. These measures help to protect both workers and passersby from potential risks associated with open trenches outside working hours.

56. Name THREE ways in which an operator can minimise their impact upon the environment whilst using the machine.

Register to view the answer to this question

Three ways an operator can minimize their impact on the environment while using a 360° excavator below 10 tonnes are:
1. Properly maintaining the machine, including regular servicing and ensuring optimal engine performance, to reduce emissions and fuel consumption.
2. Implementing proper waste management practices, such as segregating and recycling materials on site, to minimize landfill waste.
3. Adhering to best practices for noise and vibration control, reducing disturbance to local communities and wildlife habitats.

57. What information does the 'dig-envelope' (also known as 'working range') chart give? (Candidates may be shown a copy of a chart.)

Register to view the answer to this question

The 'dig-envelope' or 'working range' chart provides information on the maximum digging reach, digging depth, and dumping height that an excavator 360° below 10 tonnes can achieve. This chart helps operators to assess the machine's capabilities and plan their operations accordingly.

58. When must a signaller be used before moving an excavator?

Register to view the answer to this question

A signaller must be used before moving an excavator if the operator's view of the area surrounding the machine is obstructed and it may put other workers or equipment at risk. It is essential for safety and coordination.

59. What is meant by zero-tail swing excavators?

Register to view the answer to this question

Zero-tail swing excavators refer to machines that have no part of their upper structure extending beyond their tracks. This design allows for excellent maneuverability in tight spaces, as the excavator can rotate within its own footprint without risking collision with nearby objects. This feature is especially useful when working on projects with limited space or in urban environments, where minimizing disruption and enhancing safety are essential.

60. The operator has been asked to drive the machine 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?

Register to view the answer to this question

a) The operator is responsible for the loading operations.
b) Before loading commences, the operator should consider the following four actions:
1. Ensure the excavator is within the weight limit of the transporter/trailer.
2. Perform a pre-operation inspection, checking for any damage or issues that could affect the safe loading.
3. Stabilize the machine by engaging the bucket, blade, or outriggers to maintain balance during loading.
4. Follow proper securing procedures, such as using straps or chains, to prevent movement or tipping during transportation.

61. In what situation does a hard hat NOT need to be worn when operating a 360 excavator?

Register to view the answer to this question

When inside an enclosed structure that meets FOPS regulations, FOPS = (falling object protection structure)

62. Before leaving the cab for a rest break, after parking and switching off the machine, what final action must be carried out?

Register to view the answer to this question

Ensure that the controls are in the neutral position, remove the key from the ignition, apply the parking brake, and engage the hydraulic safety lock.

63. What is the purpose of a risk assessment?

Register to view the answer to this question

The purpose of a risk assessment is to identify and assess potential hazards and risks associated with a task or activity. It involves evaluating the likelihood and severity of potential harm that could arise from these hazards, and determining appropriate control measures to minimize or eliminate the risks. A risk assessment helps to ensure the safety and well-being of workers and others affected by the task or activity, and is a legal requirement in the UK. It informs decision-making and guides the implementation of control measures to prevent accidents and injuries.

64. When parking the machine at the end of the shift, name THREE places where the machine should not be parked.

Register to view the answer to this question

Avoid parking the excavator 360° below 10 tonnes on slopes, soft ground areas, or near hazardous materials. These locations can compromise the stability of the machine and pose safety risks. It is important to park it on firm, level ground away from potential hazards.

65. List SIX typical subject areas that should be covered in a site induction.

Register to view the answer to this question

1. Health and safety procedures and regulations specific to the construction site.
2. Emergency procedures, including evacuation routes and assembly points.
3. Site-specific hazards and ways to mitigate them, such as working at height or in confined spaces.
4. Use and maintenance of personal protective equipment (PPE) required on-site.
5. Safe operation and use of equipment specific to the site, including the excavator 360° below 10 tonnes.
6. Site rules and expectations, including working hours, breaks, and reporting procedures.

66. If a trench has a depth of 2 metres: a)  What is the minimum distance to maintain from the edge of the trench when placing spoil and b)  explain why?

Register to view the answer to this question

a) The minimum distance to maintain from the edge of the trench when placing spoil is typically twice the depth of the trench, so in this case, it would be 4 metres.

b) This distance is necessary to ensure the stability of the trench and prevent collapse. Placing the spoil too close to the edge increases the risk of soil movement, which could lead to the trench caving in. By keeping a safe distance, the excavator's weight is distributed evenly, reducing the pressure on the trench walls and minimizing the chance of accidental collapse.

67. What is the definition of, or how can a hazard be described?

Register to view the answer to this question

A hazard can be described as a potential source of harm or danger in the workplace. In the context of an excavator 360° below 10 tonnes, hazards may include: unstable ground leading to the risk of overturning, contact with underground services, entrapment of personnel, or collision with other vehicles. It is important to identify and assess these hazards to implement appropriate control measures to reduce the risk of accidents and injuries. Regular training, maintenance, and adherence to safety protocols are essential to mitigating these hazards.

68. Which parts of the machine is the radius (for lifting) measured from?

Register to view the answer to this question

The radius for lifting on a 360° excavator below 10 tonnes is typically measured from the center of the swing circle, which is located at the base of the machine's superstructure. This is the point around which the machine rotates when it swings. The radius determines the maximum distance at which the excavator can safely lift and place loads. It is important to always consult the machine's operating manual and adhere to safe lifting practices.

69. With regards to lifting accessories, irrespective of who supplied the accessories, what THREE factors should be ensured before the accessories are used?

Register to view the answer to this question

Before using lifting accessories for a 360° excavator below 10 tonnes, there are three crucial factors to consider, regardless of the supplier. Firstly, ensure that the accessories are compatible with the specific excavator model and its lifting capacity. Secondly, verify that the accessories have been properly inspected and certified for safe use. Lastly, confirm that the operator of the excavator has received suitable training on how to safely use the lifting accessories. These three factors are essential to minimize the risk of accidents and ensure safe operation.

70. If the machine's rated capacity/object handling capacity chart is not available for reference, what other method can be used to determine the machine's lifting capacity?

Register to view the answer to this question

If the rated capacity/object handling capacity chart is not available, you can calculate the excavator's lifting capacity using a formula. First, multiply the tipping load (also known as the maximum lift capacity) by the boom and dipper reach to get the theoretical moment. Then, divide this moment by the lever length to determine the actual lift capacity. However, it's important to note that this method is an estimation and may not be as accurate as using the manufacturer's chart. Additionally, it's always recommended to rely on manufacturer specifications and consult with a qualified engineer or equipment supplier for accurate and safe lifting capacity information.

71. When slewing with a load, where should the operator be looking?

Register to view the answer to this question

When slewing with a load, the operator of an excavator 360° below 10 tonnes should primarily be looking in the direction of the movement and the load. They should focus on maintaining a clear line of sight and ensuring the load remains stable. Additionally, they should regularly check their surroundings and use mirrors or cameras to monitor blind spots. Overall, the operator should prioritize safety by maintaining situational awareness and adhering to established best practices for lifting and moving loads.

72. Give FOUR reasons that may cause the machine to tip over (forwards and/or sideways).

Register to view the answer to this question

Four reasons that may cause an excavator 360° below 10 tonnes to tip over (forwards and/or sideways) are: uneven ground conditions, improper stabilization, excessive load on the bucket or arm, and sudden movement or swinging of the boom. Terrain inconsistencies can compromise stability, while ineffective stabilization measures can contribute to tipping. Overloading the bucket or arm beyond capacity can disrupt balance. Additionally, sudden and uncontrolled movements of the boom can cause loss of stability. It is important to ensure proper operation, evaluate ground conditions, and adhere to load limits to prevent tipping incidents.

73. What is the meaning of this hand signal (being demonstrated by the tester)?

Register to view the answer to this question

The hand signal demonstrated by the tester indicates "Stop." It is a universal hand signal used in the excavation industry to communicate a pause or cessation of work. The signal is useful in situations where verbal communication may be difficult or unreliable, ensuring clear understanding among workers.

74. Accessories must only be attached to manufacturers' approved lifting points. Explain THREE possible consequences if the recommendations are not followed.

Register to view the answer to this question

If recommendations are not followed, three possible consequences could be:
1. Risk of accidents: Attaching accessories to unapproved lifting points can compromise the stability and balance of the excavator, leading to tip-overs or equipment failure, posing a significant risk to the operator and nearby workers.
2. Damage to the excavator: Unapproved lifting points may not have the structural integrity to support the weight of the accessories, resulting in damage to the excavator, such as bent or broken components, which can be expensive to repair.
3. Breach of warranty and insurance: If the manufacturer's guidelines are not adhered to, it may nullify the warranty of the excavator, leaving the owner responsible for any repairs or replacement. It could also lead to insurance claims being denied, resulting in financial losses.

75. Why must the controls be isolated before each load can be attached or disconnected by the slinger?

Register to view the answer to this question

Isolating the controls before attaching or disconnecting a load is essential for safety. By doing so, any unintentional movement or operation of the excavator is prevented, reducing the risk of accidents or injuries. It ensures that the excavator remains stationary and stable during load attachment or detachment, minimizing the potential for mishaps. Overall, isolating the controls is a precautionary measure to prioritize safety and maintain control over the excavator's movements in a controlled and deliberate manner.

76. Give TWO reasons why, wherever possible, operators should excavate the ground in layers.

Register to view the answer to this question

Excavating in layers allows for better control and accuracy in removing the soil. It also helps in identifying and dealing with potential hazards or underground obstructions gradually.

77. Where should the excavator's operator's manual be kept and why?

Register to view the answer to this question

The excavator's operator's manual should be kept on board the machine at all times. This ensures that the operator has immediate access to important information such as operating instructions, safety guidelines, and maintenance procedures. In the event of any uncertainties or emergencies, having the manual readily available helps the operator make informed decisions and take appropriate actions. It also serves as a reference for routine checks and troubleshooting, contributing to efficient and safe operation of the excavator.

78. Explain the purpose of a lift plan.

Register to view the answer to this question

The purpose of a lift plan for an excavator 360° below 10 tonnes is to outline the necessary steps and precautions needed to carry out a safe and efficient lifting operation. It will identify potential risks, determine the appropriate equipment and techniques to be used, and consider the site conditions and surrounding environment. The lift plan will ensure that proper communication and coordination are established between all personnel involved, and that proper measures are in place to prevent accidents or damage. It is a crucial document that helps to minimize risks and ensure the success of the lifting operation.

79. Why are plant operators generally regarded as 'safety-critical' workers?

Register to view the answer to this question

Plant operators are generally regarded as 'safety-critical' workers because they are responsible for operating heavy machinery, such as excavators, which can pose significant risks if operated incorrectly. These machines have complex controls and can cause serious injury or damage if not operated properly. Plant operators are trained to ensure the safe operation of the equipment and to maintain a safe working environment for themselves and others. Their ability to identify and mitigate potential hazards and their adherence to health and safety regulations are crucial for the safety of the construction site.

80. When working in a confined area or space: a)  what danger can be present with regards to the counterweight of the machine, b)  when should measures be taken and c)  what measures should be implemented?

Register to view the answer to this question

a) The counterweight on an excavator 360° below 10 tonnes can pose a danger in confined areas due to its size and weight. It can potentially strike obstacles or pinch points, causing damage or injury.

b) Measures should be taken when working in confined areas, especially if there's a risk of contact with the counterweight. This includes conducting a thorough site assessment to identify potential hazards.

c) To mitigate the danger, measures such as using smaller excavators, implementing physical barriers, or providing clear signage can be taken to limit the risk of contact with the counterweight. Proper training and supervision are also essential to ensure safe operation.

81. What are the possible outcomes of facing prosecution for not complying with legislation and regulations?

Register to view the answer to this question

Facing prosecution for not complying with legislation and regulations regarding excavators 360° below 10 tonnes can result in several outcomes. These may include fines, penalties, or even imprisonment depending on the severity of the non-compliance. It could also lead to reputational damage for the company and impact future business prospects. It is crucial to prioritize compliance to ensure the safety of workers, protect the environment, and maintain a good standing in the construction industry. It is recommended to seek legal advice and take appropriate measures to address any non-compliance issues promptly.

82. Apart from the operator, who else may need to use the machine's Operator's Manual?

Register to view the answer to this question

In addition to the operator, other individuals who may need to refer to the machine's Operator's Manual include maintenance personnel, safety supervisors, and inspectors. It is important for these individuals to have a clear understanding of the machine's operating procedures, maintenance requirements, and safety guidelines to ensure its proper and safe use. The Operator's Manual serves as a valuable resource for all those involved in the operation, maintenance, and inspection of the excavator.

83. What is the purpose of a roll or ROPS frame?

Register to view the answer to this question

The purpose of a roll or ROPS (Roll-Over Protective Structure) frame on an excavator 360° below 10 tonnes is to provide protection to the operator in the event of a machine rollover. It helps to prevent injuries and fatalities by creating a protective zone around the operator's seat. The frame is designed to absorb and distribute impact forces, reducing the chances of the cab collapsing in a rollover incident. ROPS frames are an important safety feature on excavators, ensuring that operators are safeguarded while working in hazardous conditions or on uneven terrain.

84. If a hook is fitted to the machine for lifting purposes, what must be checked before use?

Register to view the answer to this question

Before using an excavator with a fitted hook for lifting purposes, you should check the following:

1. Ensure that the hook is securely attached to the machine and properly aligned.
2. Inspect the hook for any signs of damage, such as cracks or deformations.
3. Verify that the hook has a valid and current safety certificate.
4. Review the lifting capacity of the excavator and make sure that it is within the limits specified by the manufacturer.
5. Confirm that the hoisting and rigging equipment to be used with the hook is in good condition and suitable for the intended load.

Always consult the machine's operating manual and any applicable regulations for specific guidance.

85. Why should an excavator be re-fuelled at the end of the day?

Register to view the answer to this question

Refuelling the excavator at the end of the day ensures it has sufficient fuel for the next day's operations. It eliminates the risk of running out of fuel during work, avoiding delays and potential downtime. Additionally, storing the machinery with a full fuel tank prevents condensation and moisture from accumulating in the tank, which could lead to fuel contamination and engine issues. Regular refuelling also allows for accurate tracking of fuel consumption, aiding in cost analysis and budget planning.

86. How can a qualification or card benefit a plant operator?

Register to view the answer to this question

A qualification or card can benefit a plant operator (such as an excavator 360° operator below 10 tonnes) by providing evidence of their competence and expertise. It demonstrates to employers that they have the necessary skills to operate the machinery safely and efficiently. Additionally, having a qualification or card may increase job opportunities and potentially lead to higher wages. It also shows a commitment to professional development and health and safety regulations, which can enhance an operator's professional reputation. In summary, a qualification or card adds credibility and improves prospects for a plant operator in the construction industry.

87. If both travel levers (or travel pedal for wheeled machines) are pushed forwards when the track motors (or driving wheels) are in front of the cab, in which direction would the machine move?

Register to view the answer to this question

If both travel levers (or travel pedal) are pushed forwards when the track motors (or driving wheels) are in front of the cab, the excavator 360° below 10 tonnes would move forward.

Leave a Comment

Your email address will not be published. Required fields are marked *