Three Phase Induction Motors 5 H.P., 50Hz, 3-phase, 440 V, induction motors are available for the following r.p.m. Which motor will be the costliest? 1000 rpm 730 rpm 1440 rpm 2880 rpm 1000 rpm 730 rpm 1440 rpm 2880 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor with 1000 r.p.m. speed will have 8 poles 4 poles 6 poles 2 poles 8 poles 4 poles 6 poles 2 poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Less maintenance troubles are experienced in case of Slip ring induction motor Both (A) and (B) Squirrel cage induction motor None of these Slip ring induction motor Both (A) and (B) Squirrel cage induction motor None of these ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at stand still resemble those of a transformer whose secondady is _______ None of the listed here Supplying a variable resistive load Open circuited Short circuited None of the listed here Supplying a variable resistive load Open circuited Short circuited ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at no load resemble those of a transformer whose secondady is _______ Open circuited Supplying a variable resistive load Short-circuited None of the listed here Open circuited Supplying a variable resistive load Short-circuited None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors As load on an induction motor goes on increasing Its power factor goes on decreasing Its power factor goes on increasing even after full load Its power factor goes on increasing up to full load and then it falls again Its power factor remains constant Its power factor goes on decreasing Its power factor goes on increasing even after full load Its power factor goes on increasing up to full load and then it falls again Its power factor remains constant ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS