3.1 Name ONE type of roof covering that requires the roof trusses to be spaced 760 mm apart - NSC Civil Technology Construction - Question 3 - 2021 - Paper 1
Question 3
3.1 Name ONE type of roof covering that requires the roof trusses to be spaced 760 mm apart.
3.2 What is the maximum span of a closed-couple roof truss?
3.3 Name T... show full transcript
Worked Solution & Example Answer:3.1 Name ONE type of roof covering that requires the roof trusses to be spaced 760 mm apart - NSC Civil Technology Construction - Question 3 - 2021 - Paper 1
Step 1
Name ONE type of roof covering that requires the roof trusses to be spaced 760 mm apart.
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Answer
One type of roof covering that requires the roof trusses to be spaced 760 mm apart is Fibre cement tiles or Thatch.
Step 2
What is the maximum span of a closed-couple roof truss?
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Answer
The maximum span of a closed-couple roof truss is 4 metres.
Step 3
Name TWO methods that can be used to secure a wall plate to a wall.
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Answer
Two methods that can be used to secure a wall plate to a wall are:
Timber bolted or Rawl bolted to the top of the wall.
Screwed directly to the wall.
Step 4
Identify methods A and B.
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Answer
Method A is a pre-drilled hole filled with grout/Baluster fixing onto the tread, while Method B involves bolts or Rawl bolts/plastic plugs with screws used to secure baluster/Baluster fixed onto the side of the string.
Step 5
Use ANSWER SHEET 3.5 and complete the sectional view of a straight flight of concrete stairs.
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Answer
To complete the sectional view, ensure to include:
The top part of the concrete staircase with a landing.
The handrail and supporting members are drawn clearly, along with the proper dimensions.
Step 6
Use ANSWER SHEET 3.6 and draw to a scale of 1:10 a couple roof truss with supporting walls.
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Answer
When drawing the roof truss, include the following:
A ridge beam at the top.
Rafter beams connected to the ridge beam and supporting walls.
The span indicating 2,000 mm, supporting wall dimensions of 220 mm, a pitch of 30°, and an overhang of 150 mm.
