5.1 Name TWO methods that are used to channel storm water away from buildings - NSC Civil Technology Civil Services - Question 5 - 2020 - Paper 1
Question 5
5.1 Name TWO methods that are used to channel storm water away from buildings.
5.2 Who is responsible for the disposal (removal) of storm water from a property?
5.... show full transcript
Worked Solution & Example Answer:5.1 Name TWO methods that are used to channel storm water away from buildings - NSC Civil Technology Civil Services - Question 5 - 2020 - Paper 1
Step 1
Name TWO methods that are used to channel storm water away from buildings.
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Answer
Two effective methods to channel storm water away from buildings include:
Gutters on roofs: These collect rainwater and direct it into downpipes, effectively minimizing water stagnation.
Channels on inclined surfaces: These lead water away from buildings to avoid flooding and potential property damage.
Step 2
Who is responsible for the disposal (removal) of storm water from a property?
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Answer
The owner of the property holds the responsibility for the disposal of storm water, ensuring that it is managed properly to mitigate any risk to the property and surrounding areas.
Step 3
Explain the purpose of a road kerb.
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Answer
A road kerb serves to:
Channel storm water from roads, directing it towards drainage systems, thereby preventing water accumulation on the road surface.
Define the edges of the road, enhancing safety and delineating pedestrian spaces.
Step 4
Draw a neat freehand sketch, in good proportion, in your ANSWER BOOK of the development of the stop end that will fit on a 125 mm x 80 mm box gutter. The sides of the stop end is 40 mm wide.
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Answer
In the sketch, ensure the following measurements are accurately represented:
125 mm x 40 mm sides
80 mm x 40 mm side
125 mm x 80 mm center
Indicate the seam joining the components clearly.
Step 5
Explain why a stop end is used when installing gutters.
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Answer
Stop ends are crucial as they:
Seal the gutter at its ends, preventing water leakage.
Ensure that water flows effectively into the gutter system, directing it to the drainage point.
Step 6
Name ONE material that can be used for flashing.
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Answer
One material suitable for flashing is galvanised sheet metal, renowned for its durability and weather resistance.
Step 7
Use the drawing and information on ANSWER SHEET 5.7 and draw the development of the pyramid. Start the development at A showing a 5 mm seam on both sides.
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Answer
Begin by establishing the projection lines to determine the apex of the pyramid. Then, calculate the true lengths for the sides. The development should show:
The top and bottom arcs outlined clearly.
The base of the pyramid adequately represented.
A 5 mm seam on both sides to allow for proper assembly.
