# Water is flowing at a velocity of $1.6 \mathrm{~m} \mathrm{~s}^{-1}$ in a pipe of diameter $8 \mathrm{~cm}$ and length $100 \mathrm{~m} .$ Assuming the value of coefficient of friction for pipe, $\mathrm{f}=0.005$ and acceleration due to gravity, $\mathrm{g}=9.81 \mathrm{~m} \mathrm{~s}^{-2},$ the head loss (in meter) due to friction in the pipe is (A) 1.28 (B) 2.28 (C) 2.78 (D) 3.26

## Question ID - 156439 :- Water is flowing at a velocity of $1.6 \mathrm{~m} \mathrm{~s}^{-1}$ in a pipe of diameter $8 \mathrm{~cm}$ and length $100 \mathrm{~m} .$ Assuming the value of coefficient of friction for pipe, $\mathrm{f}=0.005$ and acceleration due to gravity, $\mathrm{g}=9.81 \mathrm{~m} \mathrm{~s}^{-2},$ the head loss (in meter) due to friction in the pipe is (A) 1.28 (B) 2.28 (C) 2.78 (D) 3.26

3537

Answer Key : (D) -

(D) 3.26

Next Question :

A cream separator has discharge radii of $6 \mathrm{~cm}$ and $9 \mathrm{~cm}$ and the density of cream and skim milk are 860 and $1035 \mathrm{~kg} \mathrm{~m}^{-3}$, respectively. The ideal radius (in meter) for placing the feed inlet is
(A) 0.085
(B) 0.098
(C) 0.113
(D) 0.174