Electrical Machines Field weakening control method is used for the _________ ? above rated speed None of these both A and B below rated speed above rated speed None of these both A and B below rated speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - φ induction motor running at full load which of these parameters is stationary with respect to the stator mmf wave? Rotor winding. Rotor mmf wave. Stator winding. Both rotor and stator winding. Rotor winding. Rotor mmf wave. Stator winding. Both rotor and stator winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power indicated on the name plate of any motor is always the Power drawn in KVA. Gross power. Power drawn in KW. Output power at the shaft. Power drawn in KVA. Gross power. Power drawn in KW. Output power at the shaft. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For which of the following loads, armature reaction is magnetizing in nature? None of these pure resistive load pure capacitive load pure inductive load None of these pure resistive load pure capacitive load pure inductive load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Autotransformer makes effective saving on copper and copper losses, when its transformation ratio is equal to very low approx to one. less than one. greater than one. very low approx to one. less than one. greater than one. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Skewing of cage rotors offers the following advantages uniform torque. less noise. all of below. locking tendency is reduced. uniform torque. less noise. all of below. locking tendency is reduced. ANSWER DOWNLOAD EXAMIANS APP
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