Brine, with a specific gravity of 1.2, passes through an 85% efficient pump at a flow rate of 125 l/s. the centerlines of the pump’s 300 mm diameter inlet and 200 mm diameter outlet are at the same elevation. the inlet suction gage pressure is 150 mm of mercury (specific gravity of 13.6) below atmospheric pressure. the discharge pressure is measured 1.2 m above the centerline of the pump’s outlet and indicates 138 kpa (gage). neglecting losses in the pipes, what is the input power to the pump?

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false