Photo AI
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
The lack of routine maintenance can lead to several negative outcomes including:
- Risk of injury or even death: Failing to maintain machinery can result in hazardous conditions that may cause accidents.
- Financial loss due to damages: Equipment failure can lead to costly repairs and loss of income.
- Decrease the lifespan of equipment: Neglecting routine maintenance shortens the operational life of machinery.
Step 2
Name TWO subgroups of preventative maintenance.
Answer
- Planned/Scheduled Maintenance: This involves regular inspections and maintenance activities carried out according to a defined schedule.
- Condition-based Maintenance: Maintenance actions are performed based on the actual condition of the equipment rather than on a predefined schedule.
Step 3
Define the following properties of oils:
Answer
8.3.1 Pour point: This is defined as the lowest temperature at which a liquid remains pourable, indicating the fluidity of the oil at low temperatures.
8.3.2 Flashpoint: The flashpoint refers to the lowest temperature at which the oil gives off vapour that can ignite, a critical property for handling and storage.
Step 4
Why are belts on belt drives adjusted or replaced regularly?
Answer
Belts should be adjusted or replaced regularly due to the natural wear and tear they experience and to maintain their effectiveness. By ensuring that belts are in good condition, we can prevent slippage, maximize efficiency, and prolong the life of the machinery.
Step 5
Why is cutting fluid used on the cutting tool during the machining processes on a centre lathe?
Answer
Cutting fluid is utilized primarily to keep the cutting tool cool, prolonging its life. It also helps in the removal of chips or swarf, ensuring a smoother operation while minimizing friction and wear, ultimately resulting in a better finish and increased productivity.
Step 6
How are chain drives maintained?
Answer
Chain drives are maintained by following these steps:
- Set the tension: Ensure that the chain is properly tensioned to prevent slippage.
- Correct alignment: Make sure that the chain and sprockets are aligned correctly.
- Check for wear and tear: Inspect for signs of damage or excessive wear.
- Clean system: Regularly clean the chain and sprockets to remove debris.
- Lubrication of parts: Periodically lubricate the parts to ensure smooth operation and reduce friction.