Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 15 (Q.No. 3)
3.
A flash mixer of 2.0 m3, with a velocity gradient of mixing mechanisms equal to 660/s, and fluid absolute viscosity of 1.0 x 10-3 Ns/m2 is continuously operated. What is the power input per unit volume ?
Discussion:
5 comments Page 1 of 1.
Mus said:
3 years ago
P = 1*10^-3 * 600^2 * 2 = 720W.
(1)
Apcivilian said:
4 years ago
The Right answer is 435.6.
It is asking about per unit volume.
It is asking about per unit volume.
(1)
It's AJ said:
5 years ago
Velocity gradient G= (P/uV)^1/2)
Power input per unit volume P= uG^2V,
P= 1*10^-3*660^2*2,
P= 871.2.
Power input per unit volume P= uG^2V,
P= 1*10^-3*660^2*2,
P= 871.2.
(2)
Goofy said:
7 years ago
It should be 871.2 watt.
Amith s said:
7 years ago
It will be 871 watt.
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