FIGURE 4.1 below shows two woodworking machines - NSC Civil Technology Woodworking - Question 4 - 2019 - Paper 1
Question 4
FIGURE 4.1 below shows two woodworking machines. Study the pictures and answer the questions that follow.
4.1.1 Identify A and B.
4.1.2 Describe TWO aspects that m... show full transcript
Worked Solution & Example Answer:FIGURE 4.1 below shows two woodworking machines - NSC Civil Technology Woodworking - Question 4 - 2019 - Paper 1
Step 1
Identify A and B.
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Answer
A: Jigsaw
B: Lathe
Step 2
Describe TWO aspects that must be considered when taking care of machine A in terms of its blade.
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Answer
Always clean the jigsaw blade after use to maintain its effectiveness and longevity.
Ensure that the blade is protected during storage to prevent damage and to maintain cutting precision.
Step 3
Describe TWO safety aspects that one would check after mounting the work piece, before switching on B.
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Answer
Confirm that the work piece is securely held in place to prevent any accidents during operation.
Ensure that the tool's power switch is easily accessible and that the work area is clear of obstructions.
Step 4
Describe ONE way in which a belt sander can be stored.
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Answer
Store the belt sander in a dry place where it cannot be damaged by dirt or dust.
Step 5
State TWO properties that are tested in both mechanical and visual grading.
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Answer
Strength: The ability of the material to withstand applied loads without failure.
Density: The mass of the material per unit volume, which can affect its performance and suitability for specific applications.
Step 6
Describe the FIRST THREE steps that need to be considered when preparing timber before applying preservatives.
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Answer
Remove any loose surfaces with sandpaper to ensure good adhesion of the preservative.
Ensure that the surface is smooth and free from debris, which can hinder the preservation process.
Remove all dust to allow for proper penetration of the preservative into the timber.
Step 7
Differentiate between a conventional trap door and a hinged trap door in a ceiling in terms of the way in which it opens.
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Answer
A conventional trap door consists of a panel that can be pushed up, while a hinged trap door opens either upwards or downwards by pivoting around hinges.
Step 8
Name TWO parts of a conventional trapdoor.
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Answer
Panel
Cover strip
Step 9
Give the correct measurements for the following members of a roof: King post.
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Answer
King post: 114 mm x 38 mm
Step 10
Give the correct measurements for the following members of a roof: Branderin.
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Answer
Brandering: 38 mm x 38 mm or 38 mm x 50 mm
Step 11
Differentiate between hurricane clips and storm clips regarding the specific roof members that they will secure.
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Answer
Hurricane clips are used for securing purlins to rafters or roof trusses, ensuring structural integrity in high winds. Storm clips, on the other hand, are used specifically for securing roof tiles to battens to prevent loss during severe weather.
