Civil Engineering > GATE 2023 SET-1 > Water Treatment
A flocculator tank has a volume of 2800 m3. The temperature of water in the tank is 15°C and the average velocity gradient maintained in the tank is 100/s. The temperature of water is reduced to 5°C. but all other operating conditions including the power input are maintained as the same. The decrease in the average velocity gradient (in %) due to the reduction in water temperature is _______ (round off to nearest integer).
[Consider dynamic viscosity of water at 15°C and 5°C as 1.139x10-3 N-s/m2 and 1.518x10-3 N-s/m2, respectively]
[Consider dynamic viscosity of water at 15°C and 5°C as 1.139x10-3 N-s/m2 and 1.518x10-3 N-s/m2, respectively]
Correct : a
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