The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is________?
A50 cm
B40 cm
C25 cm
D20 cm
Correct answer
A. 50 cm
Explanation
The correct answer is 50 cm.
The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is________? - Answer and Explanation | Academy of Pakistan