Z = 150 ft Water at 20°C Pump- turbine Zz= 25 ft

(b) Water enters a two-armed lawn sprinkler along the vertical axis at a rate of 50 L/s, and leaves the sprinkler nozzles as 2 cm diameter jets at an angle (0) from the tangential direction, as shown in Figure Q3(b). The length of each sprinkler arm is 0.55 m. Disregarding any frictional effects, determine the rate of rotation of the sprinkler in rev/min for (i) 0 = 0° and (ii) 0 = (last two digit of your ID number)° Radius = 0.55 m Figure Q3(b)

You wish to water your garden with 100 ft of 5/8-in-diameterhose whose roughness is 0.011 in. What will be the delivery,in ft3/s, if the gage pressure at the faucet is 60 lbf/in2?If there is no nozzle (just an open hose exit), what is thethe maximum horizontal distance the exit jet will carry?

Q4) The nozzles receive steam at 1.75 MPa, 300 °C, and exit pressure of steam is 1.05 MPa. If there are 16 nozzles, find the cross-sectional area of the exit of each nozzle for a total discharge to be 280 kg/min. Assume nozzle efficiency of 90%. If the steam has velocity of 120 m/s at the entry to the nozzles, by how much would the discharge be increased?