3.1 Give ONE word/term for each of the following descriptions by choosing a word/term from the list below - NSC Civil Technology Construction - Question 3 - 2022 - Paper 1
Question 3
3.1 Give ONE word/term for each of the following descriptions by choosing a word/term from the list below. Write only the word/term next to the question numbers (3.1... show full transcript
Worked Solution & Example Answer:3.1 Give ONE word/term for each of the following descriptions by choosing a word/term from the list below - NSC Civil Technology Construction - Question 3 - 2022 - Paper 1
Step 1
3.1.1 Method of securing a wall plate to a brick wall
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Answer
The correct term is Bolted. Bolting is a method that ensures a secure attachment of the wall plate to a brick wall, providing stability.
Step 2
3.1.2 Place in position while the concrete is still wet
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The term is J-bolt. J-bolts are embedded in concrete to secure structures in place as the concrete cures.
Step 3
3.1.3 The maximum span for a king post roof truss
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The answer is 7 metres. This is the standard maximum span for a king post roof truss, ensuring structural integrity.
Step 4
3.1.4 The measurements of a purlin used for corrugated iron roof sheeting
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The measurements are 50 mm x 76 mm. These dimensions provide adequate support for the roofing material.
Step 5
3.1.5 The maximum distance of the spacing between roof trusses for a fibre-cement tiled roof
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The maximum distance is 760 mm. This spacing ensures that the roof is adequately supported and can handle load effectively.
Step 6
3.2 Explain the term margin of a staircase.
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The margin of a staircase refers to the distance between the top of the string and the pitch line that is measured at a right angle to the pitch line. This measurement is crucial for ensuring that the staircase is both safe and functional.
Step 7
3.3 Describe the term pitch board of a staircase.
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A pitch board is a template made from plywood or other board products used to set out a staircase. It helps in marking and ensuring that the stair's rise and run are consistent, aiding in the accurate construction of the staircase.
Step 8
3.4 Identify A, B and C in figure 3.4.
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A is Landing, B is Baluster, and C is Tread/Going. Each of these components plays a critical role in the structure and functionality of the staircase.
Step 9
3.5.1 Name ONE fault and ONE consequence of this faulty construction.
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Answer
One fault is the absence of a wall plate. A consequence of not having a wall plate is that the rafter may fall from the wall or, without a slope, water will not flow away properly, leading to potential water damage.
Step 10
3.5.2 Sketch correcting the faulty construction.
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In the sketch, ensure to include a wall plate attached properly to the wall. The rafters should be drawn sloping for effective water drainage to prevent collapse.
Step 11
3.6 Draw a collar-tie roof truss.
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The drawing should illustrate a collar-tie roof truss to scale 1:20, consisting of a ridge beam, rafters sloping at 45 degrees, and labels indicating the collar beam and wall plate. The span is to be marked at 4000 mm with an overhang of 400 mm.
