FIGURE 6.1 below shows a sectional view of the eave of a roof - NSC Civil Technology Construction - Question 6 - 2016 - Paper 1
Question 6
FIGURE 6.1 below shows a sectional view of the eave of a roof. Study the drawing and complete the table on ANSWER SHEET 6.1.
FIGURE 6.2 below shows the incomplete f... show full transcript
Worked Solution & Example Answer:FIGURE 6.1 below shows a sectional view of the eave of a roof - NSC Civil Technology Construction - Question 6 - 2016 - Paper 1
Step 1
Identify the type of eave construction used in the drawing.
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Answer
The type of eave construction used in the drawing is an open/exposed eave.
Step 2
State the minimum pitch (slope) of number 1.
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Answer
The minimum pitch (slope) of number 1 is 10 degrees.
Step 3
State the standard dimension of number 2.
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The standard dimension of number 2 is 114 mm × 38 mm.
Step 4
Draw the drawing symbol for number 3.
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Diagrammatically represent number 3 as a square block with appropriate hatching or shading to indicate the material.
Step 5
Name the colour coding for number 3.
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Answer
The colour for number 3 is red.
Step 6
Explain the purpose of number 4.
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Answer
Number 4 is used to spread the load of the roof on the supporting walls of the building.
Step 7
State the standard dimension of number 5.
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The standard dimension of number 5 is 900 mm to 1 200 mm.
Step 8
As a draughtsman, recommend a suitable roof truss for a building with a span of 4 meters.
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A king post truss or a simple triangular truss would be suitable for a building with a span of 4 meters.
Step 9
State the width of the wall indicated by number 6.
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The width of the wall indicated by number 6 is 110 mm.
Step 10
Draw the top view of the layout of a gable for the proposed building indicated in the answer column.
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Answer
Sketch a top view of the gable layout, ensuring to include roof lines, eaves and essential dimensions relevant to the design as indicated.
