50 Pts) A factory has the following loads connected to its 480 V, 60 Hz line: • A large induction motor uses 147.3 KW of power at power factor of 0.773 lagging. • A 62 KVAR capacitor • A lighting load of 21 kW. Draw a power triangle for each device. Draw a power triangle for the entire factory. Calculate the current flow in the power line feeding the factory. Show your calculations of P, Q and S.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

What is the chief metrological difference between measuring with a microscope and with an electronic comparator? a. the microscope is limited to small workpieces. a. the microscope is limited to small workpieces. c. the comparator can only examine one point on the workpiece. d. the microscope carries its own standard.

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj