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QUESTION 5: GRAPHICS AS MEANS OF COMMUNICATION, ROOF WORK AND STORM WATER (SPECIFIC) Start this question on a NEW PAGE - NSC Civil Technology Civil Services - Question 5 - 2021 - Paper 1
Question 5
QUESTION 5: GRAPHICS AS MEANS OF COMMUNICATION, ROOF WORK AND STORM WATER (SPECIFIC) Start this question on a NEW PAGE. 5.1 Predict TWO consequences of poorly c... show full transcript
Worked Solution & Example Answer:QUESTION 5: GRAPHICS AS MEANS OF COMMUNICATION, ROOF WORK AND STORM WATER (SPECIFIC) Start this question on a NEW PAGE - NSC Civil Technology Civil Services - Question 5 - 2021 - Paper 1
Step 1
5.1 Predict TWO consequences of poorly constructed storm-water systems.
Answer
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Discomfort of occupants or public: Poorly constructed storm-water systems can lead to water accumulation, creating unpleasant environments, bad odors, and potential health hazards due to stagnant water.
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Damage to properties: Inadequate drainage can cause water to overflow or seep into buildings, leading to structural damage and increased repair costs.
Step 2
5.2 Use ANSWER SHEET 5.2 and draw to scale 1 : 10 a square gutter attached to the fascia board.
Answer
To effectively create the drawing, follow these specifications:
- Draw a square gutter that is 125 mm wide and 80 mm high.
- Ensure that the gutter is attached to the fascia board.
- Include a stopped end, also measuring 125 mm wide and 80 mm high.
- Indicate the gutter clips (two in total) on your drawing.
- Add a 60 mm gutter outlet, ensuring it connects appropriately to the down pipe.
- The square down pipe should have a cross-section of 60 mm.
Application of scale: Make sure to apply the scale of 1:10 accurately across your drawing to maintain proportion.
Step 3
5.3 Use the drawing on ANSWER SHEET 5.3 and draw the development of pipe A, with a 3 mm seam on the short side.
Answer
Begin by dividing the circular view of pipe A into 12 equal sections to establish the projection lines. Follow these detailed steps:
- Dividing Circle: Draw the dividing circle accurately into 12 parts.
- Projection Lines: Extend projection lines from each division to the circumference and base of the development area.
- Circumference Plan-View: Project the circumference based on the circular view, ensuring correct dimensions as per markings.
- Base and Side Lines: Clearly indicate the outside lines of the base and sides in your drawing.
- Seam Indication: Remember to allow a 3 mm seam on the short side of the pipe development.
Use these elements to ensure a complete and accurate representation of the development of pipe A.