Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 11 (Q.No. 24)
24.
Due to rise in temperature, the viscosity and unit weight of percolating fluid are reduced to 70% and 90% respectively. Other things being constant, the change in coefficient of permeability will be
Discussion:
16 comments Page 1 of 2.
Deepa said:
8 years ago
K1 = k(90/70).
K1 = K (1.2).
THEREFORE INCREASE IN K =20%.
K1 = K (1.2).
THEREFORE INCREASE IN K =20%.
Priya said:
8 years ago
Anybody explain it?
Tushar said:
8 years ago
K1=k(90/70)
K1=K(1.28)
The Answer should be B.
K1=K(1.28)
The Answer should be B.
Vill said:
8 years ago
B is correct. A would be correct if vicosity is 75%.
Phani said:
7 years ago
KT/V = constant.
Umesh H A said:
7 years ago
Well said @Deepa.
Sidd said:
7 years ago
K=unit weight of water/viscosity.
Take as k1 and k2.
There is a reduction from the 1st k(k1) and reduced one is k2.
K1/k2=(Unit wt of w/vis)1 / (unit wt of w/ vis)2.
Solving we get k1=1.286k2.
For finding the percentage (k1-k2) * 100.
Ans 28.6 per cent.
Take as k1 and k2.
There is a reduction from the 1st k(k1) and reduced one is k2.
K1/k2=(Unit wt of w/vis)1 / (unit wt of w/ vis)2.
Solving we get k1=1.286k2.
For finding the percentage (k1-k2) * 100.
Ans 28.6 per cent.
Mitesh said:
7 years ago
B is Correct.
Dolly said:
7 years ago
I think B is correct.
Kiran Gauswami said:
7 years ago
B is the right answer.
90/70=1.286,
Then 28.6.
90/70=1.286,
Then 28.6.
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