Oil (density = 900 kg/m³) flows through a horizontal pipe at 2.0 m/s at a pressure of 55 kPa. If the pipe is reduced to half its original area, the pressure in the reduced region is A) 65 kPa. B) 60 kPa. C) 55 kPa. D) 50 kPa.

Question

Quizplus · Accepted Answer

According to the principle of conservation of mass and Bernoulli's equation, when the pipe's cross-sectional area is halved, the velocity doubles to maintain the flow rate. The increase in kinetic energy results in a decrease in pressure. Using Bernoulli's equation, the pressure in the reduced region is calculated to be 50 kPa.

Oil (Density = 900 Kg/m3) Flows Through a Horizontal Pipe

Oil (Density = 900 Kg/m³) Flows Through a Horizontal Pipe