Which ONE of the following hand tools is used by template makers?
A - NSC Mechanical Technology Welding and Metalwork - Question 4 - 2022 - Paper 1
Question 4
Which ONE of the following hand tools is used by template makers?
A. Plane
B. Chipping hammer
C. Cut-off saw
D. Sanding machine
Worked Solution & Example Answer:Which ONE of the following hand tools is used by template makers?
A - NSC Mechanical Technology Welding and Metalwork - Question 4 - 2022 - Paper 1
Step 1
Which ONE of the following hand tools is used by template makers?
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Answer
The correct answer is D. Sanding machine. Template makers often require a tool that allows for precise finishing and shaping of materials, and a sanding machine is well-suited for this purpose.
Step 2
What does F stand for regarding supplementary welding symbols?
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Answer
The correct answer is C. Flame. In welding, supplementary symbols often provide additional information about the welding process, and 'F' specifically indicates the method involving flame.
Step 3
Which ONE of the following components is part of a pedestal/bench grinder?
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Answer
The correct answer is C. Handle. A handle is an essential part of the grinder, aiding in its operation.
Step 4
Identify part Z in the welding torch shown in FIGURE 4.4.
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Answer
The correct answer is B. Torch valve. Part Z is generally identified as the torch valve, which controls the flow of gas.
Step 5
What is the purpose of purlins?
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Answer
The correct answer is B. Support beams. Purlins are structural members that support roofing sheets and provide load-bearing support.
Step 6
How would one describe the term stress in materials?
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Answer
The correct answer is A. Internal resistance in a material resisting a shearing load. Stress is a measure of the internal forces in a material.
Step 7
A strut is designed to ...
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Answer
The correct answer is B. support pillars. Struts are typically used to provide support in structures.
Step 8
Which ONE of the following is an example of a non-destructive test?
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Answer
The correct answer is D. Ultrasonic test. This method uses high-frequency sound waves to detect imperfections without damaging the material.
Step 9
Lock-out and tagging of a machine is to inform workers that ...
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Answer
The correct answer is C. maintenance work on the machine has been completed. This ensures safety by indicating that machinery is safe to operate.
Step 10
The ability of a material to be drawn into wire form is known as ...
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Answer
The correct answer is D. plasticity. Plasticity is a property that allows materials to deform under stress without breaking.
Step 11
What is the colour of the acetylene cylinder used in oxy-acetylene welding?
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Answer
The correct answer is C. Maroon. The maroon colour identifies acetylene cylinders.
Step 12
Identify the type of load applied to the work piece in FIGURE 4.12.
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Answer
The correct answer is D. Twisting. The arrangement of loads suggests a twisting type of stress is applied.
Step 13
Which ONE of the following factors influences the rate of cooling of the weld metal during the welding process?
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Answer
The correct answer is B. Amount of oxygen used in the process. The oxygen level can significantly affect cooling rates.
Step 14
Which ONE of the following methods may be used to reduce distortion during the welding process?
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Answer
The correct answer is B. Controlled cooling. This method helps minimize the thermal stresses that lead to distortion.
