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2.1 State the reason why oil and grease should never be used on or near the regulator of oxy-acetylene equipment - NSC Mechanical Technology Automotive - Question 2 - 2017 - Paper 1
Question 2
2.1 State the reason why oil and grease should never be used on or near the regulator of oxy-acetylene equipment. 2.2 Name THREE safety precautions when handling or... show full transcript
Worked Solution & Example Answer:2.1 State the reason why oil and grease should never be used on or near the regulator of oxy-acetylene equipment - NSC Mechanical Technology Automotive - Question 2 - 2017 - Paper 1
Step 1
State the reason why oil and grease should never be used on or near the regulator of oxy-acetylene equipment.
Answer
Oil and grease can ignite when exposed to high temperatures, which poses a significant fire hazard, especially with flammable gases like acetylene. Their presence can lead to unsafe pressure buildup and malfunctions in the regulator, potentially resulting in dangerous explosive reactions.
Step 2
Name THREE safety precautions when handling or using the gas cylinders.
Answer
- Ensure gas cylinders are stored upright and secured to prevent tipping.
- Always use appropriate regulators and fittings to prevent gas leaks.
- Wear protective gear such as goggles and gloves when handling gas cylinders.
Step 3
Step 4
Which safety precautions should be observed when working on the following parts of a lathe:
Answer
2.4.1 Tailstock:
- Ensure that the tailstock is correctly aligned and secured before operation.
2.4.2 Machine guard:
- Make sure the guard is well secured before switching on the machine. The machine guard must be in good condition.
2.4.3 Chuck:
- Keep hands away from the rotating chuck. Don't leave the chuck key in the chuck. Ensure the chuck is well secured before switching on the machine. Turn the chuck by hand to ensure there’s no risk of the workpiece striking any part of the lathe.