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10.1 State TWO common causes of failure in machines - NSC Mechanical Technology Welding and Metalwork - Question 10 - 2024 - Paper 1
Question 10
10.1 State TWO common causes of failure in machines. 10.2 State FOUR routine maintenance guidelines for a power-driven guillotine. 10.3 State TWO common causes of ... show full transcript
Worked Solution & Example Answer:10.1 State TWO common causes of failure in machines - NSC Mechanical Technology Welding and Metalwork - Question 10 - 2024 - Paper 1
Step 1
State TWO common causes of failure in machines.
Answer
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Lack of lubrication or incorrect lubrication: Insufficient or improper lubricants can lead to increased friction and wear, resulting in damage to machine components.
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Overloading: Exceeding the machine's designed capacity can cause undue stress and strain, leading to mechanical failure.
Step 2
State FOUR routine maintenance guidelines for a power-driven guillotine.
Answer
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Test for correct operation: Regularly check that the guillotine operates smoothly and as intended.
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Check that all guards are in place and operational: Ensure that safety features are functional to prevent accidents.
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Lubricate the machine adequately: Apply appropriate lubricants on moving parts to minimize wear and prevent overheating.
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Clean the machine: Regularly remove debris and dust to maintain optimal functioning and safety.
Step 3
State TWO common causes of the failure of rollers in a rolling machine.
Answer
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Worn or damaged bearings: Bearings that have deteriorated can lead to inadequate support, causing misalignment or failure of the rollers.
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Inadequate lubrication: Insufficient lubrication can cause excessive friction, leading to overheating and potential roller failure.