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8.1 Name THREE effects of a lack of routine maintenance - NSC Mechanical Technology Welding and Metalwork - Question 8 - 2016 - Paper 1
Question 8
8.1 Name THREE effects of a lack of routine maintenance. 8.2 Name TWO subgroups of preventative maintenance. 8.3 Define the following properties of oils: 8.3.1 Po... show full transcript
Worked Solution & Example Answer:8.1 Name THREE effects of a lack of routine maintenance - NSC Mechanical Technology Welding and Metalwork - Question 8 - 2016 - Paper 1
Step 1
Name THREE effects of a lack of routine maintenance.
Answer
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Risk of Injury or Even Death: A lack of regular maintenance can lead to equipment failure, which poses safety risks to operators and workers.
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Financial Loss Due to Damages: When machinery breaks down due to poor maintenance, it can result in costly repairs and compensation claims.
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Decrease in Lifespan of Equipment: Regular maintenance is essential for prolonging the duration of machinery operation. Without it, machines may wear out faster.
Step 2
Name TWO subgroups of preventative maintenance.
Answer
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Planned/Scheduled Maintenance: This involves performing maintenance activities at predetermined intervals to prevent equipment failure.
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Condition-Based Maintenance: This approach monitors the actual condition of the equipment to decide when maintenance is needed, based on usage and performance metrics.
Step 3
Define the following properties of oils:
Answer
8.3.1 Pour Point: The pour point is defined as the lowest temperature at which a liquid, such as oil, remains pourable and can flow freely.
8.3.2 Flashpoint: The flashpoint is the lowest temperature at which oil will evaporate sufficiently to form an ignitable mixture with air, posing fire hazards.
Step 4
Why are belts on belt drives adjusted or replaced regularly?
Answer
Belts are adjusted or replaced regularly to prevent wear and tear that can lead to ineffective power transfer, slippage, or complete failure. Regular adjustments ensure that the belts maintain optimal tension and performance.
Step 5
Why is cutting fluid used on the cutting tool during the machining processes on a centre lathe?
Answer
Cutting fluid serves multiple purposes, such as keeping the cutting tool cool, prolonging its life, washing away swarf or shavings to ensure a better finish, and increasing overall productivity by optimizing cutting conditions.
Step 6
How are chain drives maintained?
Answer
Chain drives are maintained through regular checks and adjustments of chain tension, correct alignment, and lubrication of parts. Additionally, it is important to inspect the chain for wear or damage and replace it as necessary to ensure efficient operation.