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CAPENTERY AND JOINERY ESSAY
(4a)
(i) Supported scaffold
(ii) Suspended scaffold
(4b)
(i) Scaffold planks
(ii) Guardrails
(5)
(i) Durability
(ii) Easy maintenance
(6a)
(i) Ensure that the scaffold is erected on a stable and level surface to prevent it from tipping or collapsing.
(ii) Install guardrails along all open sides of the scaffold to prevent falls, and toe boards to prevent tools and materials from falling off.
(iii)Conduct regular inspections of the scaffold to check for any damage, wear, or defects, and ensure that it is properly maintained and safe to use.
(6b) Four maintenance activities carried out in the carpentry and joinery machine workshop:
(i) Regularly clean and lubricate machines to prevent rust and ensure smooth operation.
(ii) Sharpen blades on cutting tools such as saws and planers, and replace them when they become dull to maintain cutting precision.
(iii) Periodically check and adjust machine settings such as blade alignment and cutting depth to ensure accurate and efficient operation.
(iv)Regularly inspect and repair safety features such as emergency stop buttons, guards, and safety interlocks to ensure they function properly and protect workers from accidents.
(6c) Total cost of the work:
Cost of the door: N8,500.00
Cost of hinges and lock: N2,000.00
Cost of labor (3 hours at N1,200.00 per hour): 3 x 1,200 = N3,600.00
Total cost before overhead and profit: 8,500 + 2,000 + 3,600 = N14,100.00
Overhead and profit (20% of total cost): 0.20 x 14,100 = N2,820.00
Total cost including overhead and profit: 14,100 + 2,820 = N16,920.00
READ MORE; Waec Expo 2024 Questions And Answers
6a)
1. Proper Erection and Dismantling: Scaffolding must be erected and dismantled under the supervision of a competent person, following the manufacturer’s instructions and safety guidelines.
2. Safe Access and Egress: Scaffolding must have safe and secure access and egress points, including ladders, stairs, or ramps, to prevent falls and injuries.
3. Regular Inspection and Maintenance: Scaffolding must be regularly inspected and maintained to ensure it remains safe and secure, including daily checks for damage, wear and tear, and ensuring all components are securely in place.
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