Electrical Machines Unbalance 3 - Φ stator currents cause double frequency currents in the rotor. vibrations. All of these heating of rotor. double frequency currents in the rotor. vibrations. All of these heating of rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flux density under leading pole tips in case of generator will increase either increase or decrease None of these decrease increase either increase or decrease None of these decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ wound rotor induction motor the short circuit gear is used to short circuit the None of these rotor at slip rings. starting resistance in the starter. stator phases of the motor. None of these rotor at slip rings. starting resistance in the starter. stator phases of the motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking can be used for compound motors. All of these shunt motors. series motors. compound motors. All of these shunt motors. series motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The compensating winding in a DC machine is located on pole shoes to avoid the sparking at the brushes. is located on pole shoes for avoiding the flashover at the commutator. is located on commutating poles for improving commutation. is located in armature slots for compensation of the armature reaction. is located on pole shoes to avoid the sparking at the brushes. is located on pole shoes for avoiding the flashover at the commutator. is located on commutating poles for improving commutation. is located in armature slots for compensation of the armature reaction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor is, in general analogous to auto transformer. two winding transformer with secondary short circuited. None of these two winding transformer with secondary open circuited. auto transformer. two winding transformer with secondary short circuited. None of these two winding transformer with secondary open circuited. ANSWER DOWNLOAD EXAMIANS APP
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