Three Phase Induction Motors A wound rotor motor is mainly used in applications where ______ Speed control is required Less costly motor is not required High rotor resistance is required during running High starting torque is required Speed control is required Less costly motor is not required High rotor resistance is required during running High starting torque is required ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor of induction motor Always revolves in the direction opposite to stator flux Always revolves in the direction of stator flux Insufficient data None of the listed here Always revolves in the direction opposite to stator flux Always revolves in the direction of stator flux Insufficient data None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at stand still 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 The full load slip of a 3-phase induction motor ranges from None of the listed here 20 to 30 % 2 to 5 % 10 to 20 % None of the listed here 20 to 30 % 2 to 5 % 10 to 20 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The efficiency of an induction motor can be expected to be nearly 95 to 98 % 80 to 90% 60 to 90% 99% 95 to 98 % 80 to 90% 60 to 90% 99% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Less maintenance troubles are experienced in terms of None of the listed here Slip ring induction motor Squirrel cage induction motor Both squirrel cage and slip ring None of the listed here Slip ring induction motor Squirrel cage induction motor Both squirrel cage and slip ring ANSWER DOWNLOAD EXAMIANS APP
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