2.1 All personal and environmental safety rules were followed when an operator used a surface grinder. State TWO safety rules that should be followed while the surface grinder is in operation. 2.2 Give TWO examples of personal protective equipment that should be used while arc welding. 2.3 State TWO safety rules to be taken into account before applying force to a bearing puller. 2.4 What is the maximum safe distance between the grinding wheel and the tool rest on a bench grinder? 2.5 State THREE safety precautions to be adhered to when a Rockwell hardness tester is used.

NSC Mechanical Technology Welding and Metalwork Safe and hazardous conditions: 2.1 All personal and environment

2.1 All personal and environmental safety rules were followed when an operator used a surface grinder - NSC Mechanical Technology Welding and Metalwork - Question 2 - 2016 - Paper 1

Question 2

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2.1 All personal and environmental safety rules were followed when an operator used a surface grinder. State TWO safety rules that should be followed while the surfa... show full transcript

Worked Solution & Example Answer:2.1 All personal and environmental safety rules were followed when an operator used a surface grinder - NSC Mechanical Technology Welding and Metalwork - Question 2 - 2016 - Paper 1

Step 1

State TWO safety rules that should be followed while the surface grinder is in operation.

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Answer

Do not force the work piece into the wheel. This ensures that the machine operates efficiently and prevents damage to both the work piece and the machine.
Avoid large cuts. Large cuts can cause excessive stress on the machine, increasing the risk of accidents.

Step 2

Give TWO examples of personal protective equipment that should be used while arc welding.

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Answer

Welding helmet: Protects the eyes and face from harmful arc rays and sparks.
Gloves: Provides hand protection from heat and electrical hazards during welding.

Step 3

State TWO safety rules to be taken into account before applying force to a bearing puller.

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Answer

Ensure that the legs of the puller are not worn. Worn legs can lead to failure and accidents during operation.
Always keep an eye on the puller when tightening so that other components are not damaged in the process.

Step 4

What is the maximum safe distance between the grinding wheel and the tool rest on a bench grinder?

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Answer

The maximum safe distance is 3 mm. This ensures safety while using the grinder by preventing the work piece from becoming trapped.

Step 5

State THREE safety precautions to be adhered to when a Rockwell hardness tester is used.

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Answer

The area around the tester should be cordoned off to avoid accidents.
Use protective clothing to safeguard against potential hazards while operating the tester.
Ensure that the specimen must be safely positioned to avoid movement during testing.

2.1 All personal and environmental safety rules were followed when an operator used a surface grinder - NSC Mechanical Technology Welding and Metalwork - Question 2 - 2016 - Paper 1

Worked Solution & Example Answer:2.1 All personal and environmental safety rules were followed when an operator used a surface grinder - NSC Mechanical Technology Welding and Metalwork - Question 2 - 2016 - Paper 1

State TWO safety rules that should be followed while the surface grinder is in operation.

Give TWO examples of personal protective equipment that should be used while arc welding.

State TWO safety rules to be taken into account before applying force to a bearing puller.

What is the maximum safe distance between the grinding wheel and the tool rest on a bench grinder?

State THREE safety precautions to be adhered to when a Rockwell hardness tester is used.

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