Question

Water is flowing at a velocity of 1 m/s in a pipe 0.4 m in diameter. In the pipe is an orifice with a hole diameter of 0.2 m. What is the measured pressure drop across the orifice?
A. 1.76 psi
B. 2.21 psi
C. 2.83 psi
D. 3.76 psi

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