Civil Engineering - GATE Exam Questions - Discussion
Discussion Forum : GATE Exam Questions - Section 6 (Q.No. 38)
38.
A person standing on the bank of a canal drops a stone on the water surface. He notices that the disturbance on the water surface in not travelling upstream. This is because the flow in the canal is
Discussion:
5 comments Page 1 of 1.
Shoukat Ali said:
5 years ago
It is super critical because the waves not come to upstream. It flow in one direction. In subcritical some waves travel u/s and some travel d/s.
(1)
Phani said:
7 years ago
Anser is option A.
Sukumar said:
7 years ago
I think A is correct.
Udaykrishnasaha said:
7 years ago
Please explain the answer.
Purnachand said:
7 years ago
For super-critical flow, Froude number>1
V>(gy)^1/2
V>C
Hence, on upstream the wave will be washed away and we will not be able to see them but they can be seen on the downstream side hence the floor is super critical.
V>(gy)^1/2
V>C
Hence, on upstream the wave will be washed away and we will not be able to see them but they can be seen on the downstream side hence the floor is super critical.
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