Three Phase Induction Motors The condition of induction motor on load resemble those of a transformer whose secondady is _______ Supplying a variable resistive load Open circuited None of the listed here Short circuited Supplying a variable resistive load Open circuited None of the listed here Short circuited ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3 phase induction motor is running at a slip S, then approximate efficiency of the motor is ______ 1+S None of the listed here 1-S S-1 1+S None of the listed here 1-S S-1 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Slip of an induction motor is negative when Rotor speed is more than the synchronous speed of the field and are in the same direction Rotor speed is less than the synchronous speed of the field and are in the same direction Magnetic field and rotor rotate in opposite direction None of these Rotor speed is more than the synchronous speed of the field and are in the same direction Rotor speed is less than the synchronous speed of the field and are in the same direction Magnetic field and rotor rotate in opposite direction None of these ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When the rotor of a 3-phase induction motor is blocked, the slip is _____ 1 0.5 0.1 0 1 0.5 0.1 0 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase induction motor is ________ Essentially a constant speed motor Very costly Not easily maintainable A variable speed motor Essentially a constant speed motor Very costly Not easily maintainable A variable speed motor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In medium sized induction motor, the slip is generally around 0.04 % 4 % 0.4 % 14% 0.04 % 4 % 0.4 % 14% ANSWER DOWNLOAD EXAMIANS APP
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