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6) Why is PVC pipe commonly used in plumbing works? List four reasons. • Corrosion Resistance: PVC pipes do not rust or corrode, unlike metal pipes, ensuring a longer lifespan. • Durability and Longevity: They are strong, resistant to wear and tear, and can last for many years. • Cost-Effectiveness: PVC pipes are generally less expensive to purchase and install compared to many other piping materials. • Ease of Installation: They are lightweight, easy to cut, and can be joined quickly using solvent cement, reducing labor time and costs. 7) What is OSHE rule in full? OSHE typically stands for Occupational Safety, Health, and Environment. 8) What is PPE in full? PPE stands for Personal Protective Equipment. 9) What is a hazard? A hazard is anything that has the potential to cause harm, such as injury, illness, or damage to property or the environment. 10) List examples of potential hazards in plumbing workplace/area. • Physical hazards: Slips, trips, and falls (due to wet surfaces, tools, or uneven ground), cuts from sharp tools or pipes, burns from hot water or soldering equipment, and electrical shock. • Chemical hazards: Exposure to solvents, glues, cleaning agents, lead from old pipes or solder, and asbestos from old insulation. • Biological hazards: Contact with sewage, mold, bacteria, or viruses. • Ergonomic hazards: Injuries from heavy lifting, awkward postures, or repetitive motions. • Confined spaces: Working in poorly ventilated areas like crawl spaces or trenches, leading to oxygen deficiency or exposure to hazardous gases. 11) State ways to prevent the hazards listed above. • Physical hazards: Maintain a clean and organized workspace, use appropriate ladders and scaffolding, wear cut-resistant gloves, use insulated tools, and implement lockout/tagout procedures for electrical work. • Chemical hazards: Use chemicals in well-ventilated areas, wear appropriate PPE (gloves, respirators, eye protection), and consult Safety Data Sheets (SDS). • Biological hazards: Wear gloves and masks when dealing with sewage, practice good personal hygiene, and disinfect tools and work areas regularly. • Ergonomic hazards: Use proper lifting techniques, take regular breaks, utilize ergonomic tools, and adjust work positions to minimize strain. • Confined spaces: Follow confined space entry procedures, ensure adequate ventilation, use gas detectors, and have a rescue plan in place.