engineering recuitment UPSSSC Draftsman & Cartographer Mock Test 2024 Draftsman House Drainage Sewer Appurtenances
When digging a trench for installing a pipe, how much wider should the trench be compared to the external diameter of the pipe?
1
The same width as the pipe
2
0.1 to 0.3 meters wider than the pipe
3
0.3 to 0.5 meters wider than the pipe
4
1.0 meter wider than the pipe