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 2 of 2.
Deepak Mishra said:
7 years ago
It should be 28.6%.
Soumya said:
6 years ago
Anybody explain in detail.
Rajneesh said:
6 years ago
It should be increased by 50% because.
K -Y/u.
K=90/60=1.5*100=150.
150-100=50%.
K -Y/u.
K=90/60=1.5*100=150.
150-100=50%.
Madhu said:
6 years ago
28.6% Increased.
SK MURSHID said:
5 years ago
K=(90/70)* 100 = 128.6.
Change =128.6 -100=28.6
As total quantity is 100 so it subtracts by 100.
28.6 is the increase of value K,
Answer: B.
Change =128.6 -100=28.6
As total quantity is 100 so it subtracts by 100.
28.6 is the increase of value K,
Answer: B.
Johny Sins said:
5 years ago
Taylor's equation based on Poiseuille's law for laminar flow through the circular tube is given by
k=rμe31+ec2D
Change in the coefficient of permeability.
k1 = 0.9r0.7μe31 + ecD2.
k1k = 0.90.7 * 100 = 128.57%.
change = 28.57%.
k=rμe31+ec2D
Change in the coefficient of permeability.
k1 = 0.9r0.7μe31 + ecD2.
k1k = 0.90.7 * 100 = 128.57%.
change = 28.57%.
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