- A 208 V, 50 Hz six pole, Y-connected, 27 hp design class B induction motor is tested in the laboratory, with the following results: No load: 208 V, 22.0 A, 1200 W, 50 Hz Locked rotor: 24.6 V, 64.5 A, 2200 W, 15 Hz DC test: 13.5 V, 64 A Find the equivalent circuit of this motor, and plot its torque-speed characteristic

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent