The 40-m-long, 4 -in. commercial steel pipe connects reservoirs A and Bas shown in Figure P4. l .6. Determine the pressure at each point designated in the figure if the water flow is 10. 1 liters/sec (20°C), reservoir A is subjected to a pressure of 9.79 kPa (gauge), all valves are fully open, and bend losses are negligible.

Figure P4.l.6

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Po Note: The pipe is 4-in. commercial steel (ignore bend losses) 10 m TI 5 Globe 7.5 m Life-type check-valve 1 7 m 1 2 m 10 m