4. Giving specific examples discuss properties that make the following materials appropriate for the manufacture of household equipment (20 marks) (a) Aluminum (b) Iron (c) Stainless steel (d) Copper (e) Earthenware/Heatproof China 5. Giving specific examples discuss the uses of the following kitchen tools (20 marks) (a) Measuring cups (b) Waffle Makers (c) Strainers (d) Corn Popper (e) Slicers 6. By giving relevant and appropriate examples discuss five ergonomics considerations for work chair comfort (20 marks)

4. (a) Aluminum: Aluminum is lightweight, corrosion-resistant, and has good thermal and electrical conductivity, making it suitable for household equipment such as cookware, refrigerators, and air conditioners.<br /><br />(b) Iron: Iron is strong, durable, and has good magnetic properties, making it ideal for household equipment like ironing boards, magnetic knives, and storage containers.<br /><br />(c) Stainless steel: Stainless steel is corrosion-resistant, durable, and easy to clean, making it suitable for kitchen appliances such as refrigerators, dishwashers, and oven racks.<br /><br />(d) Copper: Copper is an excellent conductor of heat and electricity, making it ideal for cookware, such as pots and pans, and electrical appliances like toasters and kettles.<br /><br />(e) Earthenware/Heatproof China: Earthenware and heatproof china are resistant to high temperatures, making them suitable for oven-safe dishes, bakeware, and microwave-safe containers.<br /><br />5. (a) Measuring cups: Measuring cups are used to accurately measure ingredients in recipes, ensuring consistency and precision in cooking and baking.<br /><br />(b) Waffle Makers: Waffle makers are used to make waffles, providing a quick and easy breakfast option with various toppings and fillings.<br /><br />(c) Strainers: Strainers are used to separate liquids from solids, such as draining pasta or separating juice from pulp.<br /><br />(d) Corn Popper: Corn poppers are used to make popcorn, offering a fun and healthy snack option with customizable toppings.<br /><br />(e) Slicers: Slicers are used to slice fruits and vegetables quickly and efficiently, making food preparation easier and more convenient.<br /><br />6. Five ergonomics considerations for work chair comfort include:<br />- Adjustability: Chairs should be adjustable in terms of height, backrest angle, and armrests to accommodate different users and work environments.<br />- Lumbar Support: Chairs should have lumbar support to provide proper lower back support and reduce strain during prolonged sitting.<br />- Seat Depth: The seat depth should be adjustable to ensure that the user's feet are flat on the floor or on a footrest, promoting proper posture and reducing leg strain.<br />- Armrests: Armrests should be adjustable in height and width to provide support for the user's arms and shoulders, reducing strain and promoting relaxation.<br />- Casters: Chairs with casters allow for easy mobility, enabling users to move around comfortably and access different areas of the workspace.