Download Aptitude Crack
img not found img not found

UPSC Civil Service Exam Questions

Q1: 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

A 20.0%

B 28.6%

C 63.0%

D 77.8%

ANS:B - 28.6%

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%.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.