3.1 100 mm
3.2 The lid of the concrete ring manhole should be set in frames with greased double seals to make it airtight - NSC Civil Technology Civil Services - Question 3 - 2023 - Paper 1
Question 3
3.1 100 mm
3.2 The lid of the concrete ring manhole should be set in frames with greased double seals to make it airtight.
3.3 215 mm
3.4
3.5 Tools and accessori... show full transcript
Worked Solution & Example Answer:3.1 100 mm
3.2 The lid of the concrete ring manhole should be set in frames with greased double seals to make it airtight - NSC Civil Technology Civil Services - Question 3 - 2023 - Paper 1
Step 1
3.1 100 mm
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Answer
The correct measurement of 100 mm refers to a specific construction standard that must be adhered to for structural integrity.
Step 2
3.2 The lid of the concrete ring manhole should be set in frames with greased double seals to make it airtight.
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Answer
When constructing manholes, it is essential to ensure the lids are secure and waterproof. Using frames and greased double seals prevents leakage and maintains the integrity of the manhole.
Step 3
3.3 215 mm
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Answer
A measurement of 215 mm is likely related to the dimensions of construction elements, ensuring they meet required codes.
Step 4
3.5 Tools and accessories: Spirit level + with a gradient template/incidence board
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Utilizing a spirit level with a gradient template allows for the accurate leveling of surfaces and ensures that all areas are constructed at the appropriate slope, important for drainage.
Step 5
3.7 Before entering confined spaces:
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It is critical to ensure that a trained individual inspects the space for safety, checks air quality, and removes any harmful gases before entry. Proper PPE must be utilized.
Step 6
3.8 Safety regulations for working in elevated positions:
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To ensure safety when working at heights, adherence to a fall protection plan is crucial. Workers should always use safety harnesses and ensure fall protection systems are correctly set up.
Step 7
3.9.1 Volume of a cubic water storage tank
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Answer
To calculate the volume, use the formula: Volume = Area of base x height.
Therefore, the calculation equates to:
extVolume=3.7imes3.7imes3.7=50.65extm3.
Step 8
3.9.2 Volume of water in tank
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Answer
To convert cubic meters to liters, multiply the volume by 1,000. Hence,
$$50.65 ext{ m}^3 imes 1,000 = 50,650 ext{ liters}.$
Step 9
3.10 3.10.1 Closer brick/Queen closer
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Answer
Using proper brick types and courses is essential in masonry for both structural stability and aesthetic finish.
