4.1 Identify the lathe component shown in FIGURE 4.1
A - NSC Mechanical Technology Fitting and Machining - Question 4 - 2021 - Paper 1
Question 4
4.1 Identify the lathe component shown in FIGURE 4.1
A. Micrometer
B. Screw-cutting dial gauge
C. Centre gauge
D. Thread-pitch gauge
4.2 Identify the CORRECT state... show full transcript
Worked Solution & Example Answer:4.1 Identify the lathe component shown in FIGURE 4.1
A - NSC Mechanical Technology Fitting and Machining - Question 4 - 2021 - Paper 1
Step 1
Identify the lathe component shown in FIGURE 4.1
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Answer
The lathe component shown in FIGURE 4.1 is identified as D. Thread-pitch gauge.
Step 2
Identify the CORRECT statement about using a centre lathe:
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Answer
The correct statement is A. Do not leave the machine while it is in motion.
Step 3
What is meant by the term absolute programming when using a CNC milling machine?
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Answer
Absolute programming refers to D. The location of each operation in coordinate format.
Step 4
Tool change takes place automatically between processes on a CNC milling machine, when the …
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Answer
This occurs when C. tool change has been programmed.
Step 5
What type of material is the indenter of a Brinell hardness tester made of?
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Answer
The material is typically D. Carbide.
Step 6
Identify the type of tester in FIGURE 4.6.
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Answer
The tester in FIGURE 4.6 is A. Tensile tester.
Step 7
What is meant by the term tensile stress?
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Answer
Tensile stress is described by C. An internal force present when an external tensile load is applied.
Step 8
Identify the type of stress caused in the rivet in FIGURE 4.8.
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Answer
The type of stress is B. Compressive stress.
Step 9
Vesconite is best suited for ...
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Answer
Vesconite is best suited for B. bearings and bushes.
Step 10
What is polyvinyl chloride (PVC) used for?
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Answer
PVC is used for B. Cutting tools.
Step 11
Which statement best describes the metric square thread?
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Answer
The best description is B. the width of the screw thread, the depth of the screw thread and the space between the threads.
Step 12
Multiple-start screw threads are used when ...
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Answer
They are used when C. great strength and quick travel is required.
Step 13
A Joule is defined as the work done when a force of ...
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Answer
A Joule is defined as D. 10 N is exerted over a distance of 1 m in the direction of the force.
Step 14
In FIGURE 4.14 a symbol of a hydraulic component is shown. Identify the symbol.
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