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For laying a sewer line in a trench of 2 m...

This question belongs to Civil Engineering Waste Water Engineering
Waste Water Engineering
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For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of

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Correct Answer: Option D
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3 Comments
Dilip Joshi
Dilip Joshi 5 years ago
In the first method a line parallel to the sewer centre line is marked on the ground. This line is known as offset line and it is usually marked at a distance of 2 to 3 m or half the trench width +0.6 m from the centre line of the sewer. Along the offset line pegs are driven at an interval of 7.5 to 15 m.
Gaurav Gawande
Gaurav Gawande 6 years ago
thank you anju
Anju Antony
Anju Antony 6 years ago
Offset=b/2 + O. 6
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