Calculate the diameter of the nozzle (in mm) by a jet of water discharging freely out of a nozzle, fitted to a pipe 300 m long and 100 mm diameter with coefficient of friction as 0.01. The available head at the nozzle is 90 m. a. 33 b. 25.4 c. 372 d. 10.29

(67) The water tank shown is filled by pumping water from the well where the water level is located 9 feet below the elevation of the pump. The head added by the pump at a flow rate of 200 gpm is 27 feet. The efficiency of the pump is 85%. The pump power (hp) is most nearly: A. 1.0 В. 1.5 C. 2.0 Tank D. 2.5 15 ft. Pump 9 ft. Well

Water at 50°F is pumped from a lake at 750 gpm through a length of 3-inch schedule 40 commercial steel pipe as shown below. The inlet to the pipe is eight feet below the surface of the lake. A 25-HP gasoline engine drives the pump and the pump has an efficiency of 80% What is the Reynolds number in the pipe? Is the flow laminar or turbulent? What is the head added to the water by the pump? What is the head loss due to pipe friction?