(a) (i) State eight key areas of maintenance. (8 marks) (ii) Outline three advantages of preventive maintenance. (3 marks) (b) State six adv antages of hiring plant. (6 marks) (c) State two reasons for having a pump on site. (3 marks)

(a) $(i)$ Eight key areas of maintenance are:<br /><br />1. **Preventive Maintenance**: Regularly scheduled maintenance to prevent equipment failure.<br />2. **Corrective Maintenance**: Repairs performed after equipment failure to restore functionality.<br />3. **Predictive Maintenance**: Uses data-driven techniques to predict equipment failures before they occur.<br />4. **Condition-Based Maintenance**: Maintenance actions based on the actual condition of the equipment.<br />5. **Time-Based Maintenance**: Maintenance performed at regular intervals, regardless of equipment condition.<br />6. **Failure Mode and Effects Analysis (FMEA)**: Identifies potential failure points and their effects to prevent failures.<br />7. **Total Productive Maintenance (TPM)**: Involves all employees in maintaining and improving equipment.<br />8. **Reliability-Centered Maintenance (RCM)**: Focuses on identifying and mitigating the causes of equipment failures.<br /><br />(ii) Three advantages of preventive maintenance are:<br /><br />1. **Cost Reduction**: Prevents unexpected breakdowns, reducing repair costs and downtime.<br />2. **Equipment Longevity**: Maintains equipment in optimal condition, extending its lifespan.<br />3. **Improved Productivity**: Ensures continuous operation, minimizing delays and enhancing efficiency.<br /><br />(b) Six advantages of hiring plant are:<br /><br />1. **Specialized Skills**: Access to skilled labor for specific tasks.<br />2. **Flexibility**: Ability to scale operations up or down based on demand.<br />3. **Cost Efficiency**: Often more cost-effective than hiring permanent staff.<br />4. **Temporary Needs**: Ideal for short-term projects or peak periods.<br />5. **Training Opportunities**: Workers can gain new skills and experience.<br />6. **Compliance**: Ensures adherence to safety and regulatory standards.<br /><br />(c) Two reasons for having a pump on site are:<br /><br />1. **Water Supply**: Provides a reliable source of water for various uses, such as firefighting, cooling, and sanitation.<br />2. **Waste Removal**: Facilitates the efficient removal of wastewater and other liquid waste, ensuring proper sanitation and environmental compliance.