Electrical Machines In Ward-Leonard method of speed control, the direction of rotation of motor is reversed usually reversing the connection of the motor armature terminal. generator field terminal. motor field terminal. generator armature terminal. motor armature terminal. generator field terminal. motor field terminal. generator armature terminal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In the 3-phase induction motor, the resultant flux is of a constant nature and is equal to φm, where φm is the maximum flux due to any phase 3 times maximum value of flux due to any phase 1/2 times maximum value of flux due to any phase 3/2 times maximum value of flux due to any phase equal to φm, where φm is the maximum flux due to any phase 3 times maximum value of flux due to any phase 1/2 times maximum value of flux due to any phase 3/2 times maximum value of flux due to any phase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If input of a transformer is square wave the output will be square wave. pulsed wave. sine wave. triangular wave. square wave. pulsed wave. sine wave. triangular wave. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft torque of a dc motor is less than the electromagnetic torque because of mechanical losses. eddy current losses. hysteresis losses. ohmic losses. mechanical losses. eddy current losses. hysteresis losses. ohmic losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If Pi and Pc represent core and full load copper loss respectively, the maximum KVA delivered to load corresponding to maximum efficiency is equal to rated KVA is Pc/Pi √(Pi/Pc) (Pi/Pc)2 Pi/Pc Pc/Pi √(Pi/Pc) (Pi/Pc)2 Pi/Pc ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? All of these ZPF method. MMf method. Synchronous impedance method. All of these ZPF method. MMf method. Synchronous impedance method. ANSWER DOWNLOAD EXAMIANS APP
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