Question: The following steps are involved in laying a sewer in a trench : 1. Transferring the center line of the sewer to the bottom trench. 2. Setting sight rails over the trench. 3. Driving pegs to the level of the invert line of the sewer. 4. Placing the sewer of these steps is The correct sequence of these steps is
Options
A : 1, 2, 3, 4
B : 2, 3, 4, 1
C : 4, 2, 3, 1
D : 2, 3, 1, 4
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