4.1 Below are photographs of fasteners that are used on building sites - NSC Civil Technology Civil Services - Question 4 - 2017 - Paper 1
Question 4
4.1 Below are photographs of fasteners that are used on building sites.
Write down the name and ONE use of EACH fastener next to the question
number (4.1.1–4.1.3) ... show full transcript
Worked Solution & Example Answer:4.1 Below are photographs of fasteners that are used on building sites - NSC Civil Technology Civil Services - Question 4 - 2017 - Paper 1
Step 1
4.1.1 - Name and use of each fastener
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Answer
Chipboard screw: Used for joining fabricated boards or timber products.
Steel cut nail: Mainly used to fix skirtings and cleats to brickwork.
Sleeve anchor: Used for fixing objects into concrete and brickwork.
Step 2
4.2 - Name ONE fastener for joining purlins to rafters
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Answer
One suitable fastener for joining purlins to rafters is a hurricane clamp.
Step 3
4.3 - State TWO advantages of nails over screws
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Answer
Nails are quicker to drive in than screws, which speeds up the installation process.
Nails are generally cheaper and available in various lengths, which can be cost-effective for large projects.
Step 4
4.4 - Name ONE pipe that can be joined by means of a compression joint
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Answer
A copper pipe can be joined by means of a compression joint.
Step 5
4.5 - Complete the incomplete cutting list
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Answer
Based on the specifications, the cutting list includes:
Ceiling boards: 4 pieces of 6.4 mm x 900 mm x 3 600 mm.
Brandering: 10 pieces of 38 mm x 38 mm each 3 600 mm long.
Cleats: 4 pieces of 75 mm x 75 mm.
Wooden cover strips: 17 pieces of 45 mm x 10 mm.
Step 6
4.6.1 - Calculate the inside area of the room
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Answer
The inside measurements for the room are calculated as follows:
Long wall: 7000 mm - 2(220 mm) = 6,560 mm
Short wall: 4000 mm - 2(220 mm) = 3,560 mm.
The area of the room is then:
extArea=extLengthimesextWidth=6.560imes3.560=23,374.4extm2.
Step 7
4.6.2 - Calculate the area of ONE ceiling board
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Answer
The area of one ceiling board is calculated as:
extArea=extLengthimesextWidth=4.200extmmimes1.200extmm=5.04extm2.
Step 8
4.6.3 - Calculate the length of the skirting required
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Answer
The total length of the skirting required is:
Length of skirting = (6,560 + 6,560 + 3,560 + 3,560) - 3,000 (for the sliding door) = 17,240 mm.
The final count for skirting in meters is 17.24 m.
