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8.1 Name THREE effects of a lack of routine maintenance - NSC Mechanical Technology Automotive - 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 Automotive - Question 8 - 2016 - Paper 1
Step 1
Name THREE effects of a lack of routine maintenance.
Answer
- Risk of Injury or Death: Inadequate maintenance can lead to equipment failure, posing serious risks to operators.
- Financial Loss: Machinery may become inoperable, resulting in lost productivity and potential financial damage due to repairs.
- Decreased Equipment Lifespan: Lack of regular upkeep can significantly shorten the working life of equipment.
Step 2
Name TWO subgroups of preventative maintenance.
Answer
- Planned/Scheduled Maintenance: Maintenance carried out at regular intervals to prevent equipment failure.
- Condition-Based Maintenance: Maintenance performed based on the actual condition of equipment, as determined by monitoring tools.
Step 3
Define the following properties of oils:
Answer
8.3.1 Pour Point: This is the lowest temperature at which a liquid remains pourable, indicating the temperature at which oil begins to solidify.
8.3.2 Flashpoint: This is the lowest temperature at which the oil gives off sufficient vapor to ignite in air, indicating the flammability of the oil.
Step 4
Why are belts on belt drives adjusted or replaced regularly?
Answer
Belt drives require regular adjustment or replacement to minimize wear and tear. Regular maintenance ensures that the belts stretch appropriately, maintain adequate tension, and operate in good condition to transmit power effectively.
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: it keeps the cutting tool cool, helps in the proling line of the cutting tool, washes away swarf or shavings, and promotes a better finish, ultimately enhancing productivity.
Step 6
How are chain drives maintained?
Answer
Regular maintenance of chain drives includes:
- Setting Tension: Adjusting chain tension to the recommended specifications.
- Correct Alignment: Ensuring proper alignment with sprockets.
- Wear and Tear Check: Inspecting for signs of wear or damage.
- Cleaning: Keeping the chain clean to prevent buildup of debris.
- Lubrication of Parts: Regularly lubricating moving components to reduce friction and wear.