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 mu... 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
Cleaning the Blade: Ensure the jigsaw blade is cleaned after use to maintain its sharpness and efficiency.
Use for Intended Purposes: Use the blade only for its designated cutting tasks to prevent damage and ensure safety.
Step 3
Describe TWO safety aspects that one would check after mounting the work piece, before switching on B.
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Secure Work Piece: Ensure that the work piece is securely mounted to prevent movement during operation.
Tool Lock: Make sure that the tool is locked in place to minimize the risk of accidental operation.
Step 4
Describe ONE way in which a belt sander can be stored.
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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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Strength: Evaluate the structural integrity of the material.
Density: Measure the compactness of the material to assess quality.
Step 6
Describe the FIRST THREE steps that need to be considered when preparing timber before applying preservatives.
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Remove Surface Scratches: Sand the timber surface with grades of sandpaper.
Ensure Smoothness: Make sure the surface is smooth and free from debris.
Dust Removal: Thoroughly remove all dust before applying preservatives.
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 upwards or downwards by pivoting around its hinges.
Step 8
Name TWO parts of a conventional trapdoor.
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Answer
Panel: The main component that covers the opening.
Hinges: Allow the door to pivot for opening and closing.
Step 9
Give the correct measurements for the following members of a roof:
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Answer
King Post: 114 mm x 38 mm
Brander: 38 mm x 38 mm or 38 mm x 50 mm
Step 10
Differentiate between hurricane clips and storm clips regarding the specific roof members that they will secure.
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Hurricane clips are used for securing purlins to rafters, while storm clips secure roof tiles to the battens.
Step 11
Use ANSWER SHEET 4.9 and draw to scale 1 : 20 a close-coupled roof truss with a pitch of 30°, a span of 3 m, and the dimensions of the roof members as follows:
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Create a detailed drawing that includes the specified dimensions for the ridge beam, wall plate, tie beam, rafters, and ensure to label at least two components accurately.
