5.1 Draw a neat freehand drawing in your ANSWER BOOK to show the installation of a gutter, down-pipe installation with an offset pipe and rain-water shoe as seen from the side. 5.2 FIGURE 5.2 below shows drawings of a concrete shoe and a surface channel. Explain the purpose of each. 5.3 Flashing is used for waterproofing roofs. Name TWO materials that are used for flashing. 5.4 ANSWER SHEET 5.4 shows the front view and top view of a cylindrical pipe elbow. Use the drawing and the information on ANSWER SHEET 5.4 and draw ONE development of the vertical cylindrical pipe elbow. Start the development at A, showing the 3 mm seam on both sides. Show ALL construction lines. Do NOT redraw the given views. Project the development from the given views.

NSC Civil Technology Civil Services Sewerage drainage system design: 5.1 Draw a neat freehand drawing

5.1 Draw a neat freehand drawing in your ANSWER BOOK to show the installation of a gutter, down-pipe installation with an offset pipe and rain-water shoe as seen from the side - NSC Civil Technology Civil Services - Question 5 - 2021 - Paper 1

Question 5

5.1 Draw a neat freehand drawing in your ANSWER BOOK to show the installation of a gutter, down-pipe installation with an offset pipe and rain-water shoe as seen fro... show full transcript

Worked Solution & Example Answer:5.1 Draw a neat freehand drawing in your ANSWER BOOK to show the installation of a gutter, down-pipe installation with an offset pipe and rain-water shoe as seen from the side - NSC Civil Technology Civil Services - Question 5 - 2021 - Paper 1

Step 1

5.1 Draw a neat freehand drawing in your ANSWER BOOK to show the installation of a gutter, down-pipe installation with an offset pipe and rain-water shoe as seen from the side.

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Answer

Start by sketching the gutter at the roof edge. Then, draw the down-pipe leading from the gutter down to the ground. Include an offset pipe to transition horizontally. At the base, illustrate the rain-water shoe to guide water away from the building into a drainage system. Ensure all elements are clearly labeled to demonstrate their function.

Step 2

5.2 Explain the purpose of each.

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Answer

The concrete shoe channels water away from the house/building, preventing erosion and foundation issues. The surface channel directs water towards rivers or dams, aiding in flood management and ensuring proper drainage.

Step 3

5.3 Name TWO materials that are used for flashing.

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Answer

Two materials commonly used for flashing are copper and galvanized sheet metal.

Step 4

5.4 Use the drawing and the information on ANSWER SHEET 5.4 and draw ONE development of the vertical cylindrical pipe elbow.

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Answer

Begin by making a top-down projection to visualize the dimensions. Use the provided data to calculate lengths and angles necessary for the development. Fold lines should be drawn indicating where the pipe will curve. Ensure to label the seam clearly, showing the 3 mm seam on both sides, and adhere to the accurate proportions and angles as depicted in the answer sheet.

5.1 Draw a neat freehand drawing in your ANSWER BOOK to show the installation of a gutter, down-pipe installation with an offset pipe and rain-water shoe as seen from the side - NSC Civil Technology Civil Services - Question 5 - 2021 - Paper 1

Worked Solution & Example Answer:5.1 Draw a neat freehand drawing in your ANSWER BOOK to show the installation of a gutter, down-pipe installation with an offset pipe and rain-water shoe as seen from the side - NSC Civil Technology Civil Services - Question 5 - 2021 - Paper 1

5.1 Draw a neat freehand drawing in your ANSWER BOOK to show the installation of a gutter, down-pipe installation with an offset pipe and rain-water shoe as seen from the side.

5.2 Explain the purpose of each.

5.3 Name TWO materials that are used for flashing.

5.4 Use the drawing and the information on ANSWER SHEET 5.4 and draw ONE development of the vertical cylindrical pipe elbow.

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