A25-hp three-phase induction motor operates for a 440-vrms (line-to-line) three phase source and draws a line current of 35 a rms at a power factor of 83 percent lagging under rated full load conditions. the full load speed is 1750 rpm. under no load conditions the speed is 1797 rpm and the line current is 6.5 a rms at a power factor of 30 percent lagging. find the power loss and efficiency with full load, the input power with no load and the speed regulation.

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

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above