2.1 Why should the rated speed of the grinding wheel never exceed the maximum speed of the grinder?
2.2 State TWO safety precautions that should be observed while the vertical band saw is in operation - NSC Mechanical Technology Welding and Metalwork - Question 2 - 2022 - Paper 1
Question 2
2.1 Why should the rated speed of the grinding wheel never exceed the maximum speed of the grinder?
2.2 State TWO safety precautions that should be observed while t... show full transcript
Worked Solution & Example Answer:2.1 Why should the rated speed of the grinding wheel never exceed the maximum speed of the grinder?
2.2 State TWO safety precautions that should be observed while the vertical band saw is in operation - NSC Mechanical Technology Welding and Metalwork - Question 2 - 2022 - Paper 1
Step 1
Why should the rated speed of the grinding wheel never exceed the maximum speed of the grinder?
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Answer
The rated speed of the grinding wheel must not exceed the maximum speed of the grinder to prevent the wheel from bursting or breaking due to excessive centrifugal force. If the wheel turns faster than its rated speed, it could lead to severe accidents and compromise the effectiveness of the grinding process.
Step 2
State TWO safety precautions that should be observed while the vertical band saw is in operation.
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Answer
Never leave the band saw unattended while it is in operation.
Always use a push stick when cutting to prevent injuries.
Step 3
Identify the THREE stages in which first aid is applied.
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Answer
Examination: Assessing the situation and the injuries.
Diagnosis: Determining the nature and extent of the injuries.
Treatment: Providing appropriate medical care or assistance.
Step 4
Name the TWO main categories into which the causes of accidents can be divided according to the Occupational Health and Safety Act.
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Answer
Unsafe acts: Actions that directly contribute to accidents.
Unsafe conditions: Environmental factors that pose risk of harm.
Step 5
State TWO advantages of the product workshop layout.
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Answer
Handling of material is kept to a minimum, which enhances efficiency.
The production control process is almost automatic, reducing the likelihood of errors.
