Given the system head loss defined by H = 33+5.78×10°Q² where Hs is in feet when Q is in m/s. For an available pump, a performance curve is defined by H, =52.0–1.01×10°Q? with Hp in feet when Q is in m³/s. Using this pump what will be the resultant flowrate, Q, in m/second for this system?

Two centrifugal pumps are connected in series in a given pumping system. Plot total head Ah against capacity. Q pump and system curves and determine the operating points for 1. Only pump 1 running 2. Only pump 2 running 3. Both pumps running Du On the basis of the following data: operating data for pump 1 Ah, m 50 49.5 48.5 48 46.5 44 42 39.5 36 32.5 28.5 Qm 25 50 75 100 125 150 175 200 225 250 /h operating data for pump 2 Ah, m 40 39.5 39 38 37 36 34 32 30.5 28 25.5 Q. m³/h 0 25 50 75 100 125 150 175 200 225 250 Data for system Ah, m 35 37 Q.. m³/h 0 25 40 50 43.5 46.5 50.5 75 100 125 54.5 59.5 66 72.5 80 150 175 200 225 250

Answers: 88.92 kPa, g = 12.81 psig

29. Type of flow in which shock waves are generated by the object. a. transonic b. subsonic c. sonic d. none of these 30. A pump delivers 40 gpm of water with a total head of 40 ft. The efficiency of the pump is 65%. What is its BHP? a. 0.62 d. 5.50 b. 0.70 c. 2.00 31. Type of pump that converts the kinetic head of the fluid to pressure head. a. positive displacement pump c. reciprocating pump d. rotary pump b. centrifugal pump 32. Which of the following is not an application of dimensional analysis? a. Conversion of one system of units into units of other systems b. To check the dimensional balance of an equation c. To establish the relationship among various physical quantities d. To find the value of the dimensionless constant 21F8