4.1 Which ONE of the following materials can be cut using tinsnips when manufacturing a template?
A 3 mm sheet metal
B Hardboard
C Galvanised sheet metal
D Perspex
4.2 What is a plate girder?
A Hollow tubing welded together
B Combination of plates and angle iron welded together
C Retro grids welded together
D Combination of plates and round bars welded together
4.3 Supplementary symbols indicate .. - NSC Mechanical Technology Welding and Metalwork - Question 4 - 2023 - Paper 1
Question 4
4.1 Which ONE of the following materials can be cut using tinsnips when manufacturing a template?
A 3 mm sheet metal
B Hardboard
C Galvanised sheet metal
D Perspex
... show full transcript
Worked Solution & Example Answer:4.1 Which ONE of the following materials can be cut using tinsnips when manufacturing a template?
A 3 mm sheet metal
B Hardboard
C Galvanised sheet metal
D Perspex
4.2 What is a plate girder?
A Hollow tubing welded together
B Combination of plates and angle iron welded together
C Retro grids welded together
D Combination of plates and round bars welded together
4.3 Supplementary symbols indicate .. - NSC Mechanical Technology Welding and Metalwork - Question 4 - 2023 - Paper 1
Step 1
Which ONE of the following materials can be cut using tinsnips when manufacturing a template?
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Answer
The correct answer is B Hardboard. Tinsnips are typically used for cutting materials like thin metal sheets, and hardboard is more manageable for this cutting method.
Step 2
What is a plate girder?
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Answer
The correct answer is B Combination of plates and angle iron welded together. A plate girder is commonly used in construction due to its strength and stability.
Step 3
Supplementary symbols indicate ... information about welds.
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Answer
The correct answer is A additional. Supplementary symbols provide extra information that is critical for interpreting welding instructions.
Step 4
Which member of a framework resists a compressive force?
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Answer
The correct answer is B Strut. Struts are designed to resist compression in frameworks.
Step 5
What does the abbreviation UDL stand for?
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Answer
The correct answer is D Uniformly distributed load. This term is often used in engineering to describe the spread of load along a beam.
Step 6
When calculating strain, the original length of a bar is defined as the ...
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Answer
The correct answer is C length of an object before an external load is applied. This is essential for accurate strain calculations.
Step 7
Which ONE of the following tests is a non-destructive test?
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Answer
The correct answer is A X-ray test. It is used to examine the internal structure of materials without altering them.
Step 8
Which ONE of the following is a disadvantage of the liquid dye penetration test?
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Answer
The correct answer is A Detects only subsurface defects. This test is limited in its scope as it can miss surface cracks that are not accessible.
Step 9
Pearlite structure is a mixture of ... in layers.
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Answer
The correct answer is A iron and iron carbide. This structure influences the strength and hardness of steel.
Step 10
What is the disadvantage of using jigs, fixtures and clamps when welding?
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Answer
The correct answer is D Increases internal stress. While these tools aid in accuracy, they can also lead to stress in the material.
Step 11
Identify the type of hopper in FIGURE 4.14 below.
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Answer
The correct answer is B Square to round. This shape is typically used to facilitate material flow.
