4.1 Choose a description from COLUMN B that matches an item in COLUMN A - NSC Civil Technology Woodworking - Question 4 - 2018 - Paper 1
Question 4
4.1 Choose a description from COLUMN B that matches an item in COLUMN A. Write only the letter (A–H) next to the question numbers (4.1.1 to 4.1.5) in the ANSWER BOOK... show full transcript
Worked Solution & Example Answer:4.1 Choose a description from COLUMN B that matches an item in COLUMN A - NSC Civil Technology Woodworking - Question 4 - 2018 - Paper 1
Step 1
Choose a description from COLUMN B for 4.1.1
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Answer
The item in COLUMN A for 4.1.1 is King post, which corresponds to description C: "is attached at right angles to the tie beam."
Step 2
Choose a description from COLUMN B for 4.1.2
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Answer
The item in COLUMN A for 4.1.2 is Purlin, which corresponds to description A: "placed and attached perpendicularly to the rafters to support the roof sheeting metal."
Step 3
Choose a description from COLUMN B for 4.1.3
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Answer
The item in COLUMN A for 4.1.3 is Eaves, which corresponds to description D: "the portion of a roof that projects beyond the outside walls of a building."
Step 4
Choose a description from COLUMN B for 4.1.4
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Answer
The item in COLUMN A for 4.1.4 is Jig saw, which corresponds to description E: "used to cut out circles in a piece of wood."
Step 5
Choose a description from COLUMN B for 4.1.5
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Answer
The item in COLUMN A for 4.1.5 is Wax, which corresponds to description F: "suitable for indoor use after the wood has been treated with other finishes."
Step 6
Identify members A to F for 4.2.1
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Answer
A: Purlin, B: Ridge/Ridge plate, C: Valley rafter/Valley, D: Eaves overhang, E: Gable end/Gable wall/Side of building, F: Roof covering.
Step 7
What are the breadth and thickness of part B in mm? for 4.2.2
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Answer
The breadth and thickness of part B is 76 mm x 76 mm.
Step 8
Explain why the corrugated iron sheeting is protruding for 4.3
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Answer
The corrugated iron sheeting is protruding 50 mm over the end of the rafter to allow rainwater to be directed into the gutter and to prevent water from damaging the end of the rafters.
Step 9
Explain TWO characteristics of a good roof covering for 4.4
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A good roof covering must be able to resist weather conditions such as rain and wind, offering protection against corrosion.
It should look durable and enhance the appearance of the building.
Step 10
Differentiate between IBR sheeting and corrugated iron sheeting for 4.5
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IBR sheeting has a smooth, modern design with generally wider spans, while corrugated iron sheeting features traditional, narrow ridges and grooves.
Step 11
Describe TWO advantages of a steel roof sheet for 4.6
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The installation of steel roofing is faster and simpler, saving time on construction.
Steel roof covering is also more economical compared to traditional tiles.
Step 12
Explain the consequences if roof underlay is not installed for 4.7
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If roof underlay is not installed, the roof may not be fully waterproof.
The risk of lifting tiles could increase, causing potential leaks.
Step 13
Identify machines A and B for 4.9.1
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A: Router, B: Combination belt and disc sander.
Step 14
Recommend TWO ways of storing A after use for 4.9.2
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Store in a safe, dry place.
Keep it in a wooden or plastic box away from moisture.
Step 15
What aspects would you consider when taking care of B? for 4.9.3
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Maintain all machinery - lubricate and adjust according to the manufacturer's instructions.
Clean the belt/disc sander after use.
Step 16
Name THREE types of woodworking machines that you can use for 4.9.4
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Table saw
Band saw
Jigsaw.
Step 17
Explain the grading of each plank as indicated by the letters for 4.10.1
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M – Mechanical grading; V – Visual grading.
Step 18
Explain the number on each plank for 4.10.2
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The number '6' indicates the strength of the plank.
Step 19
Name the symbol that indicates grading has been done for 4.10.3
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