Electrical Machines In DC generators, the brushes remain in contact with conductors which lie in the inter polar gaps. lie under south pole. there is no hard and fast rule for this. lie under north pole. lie in the inter polar gaps. lie under south pole. there is no hard and fast rule for this. lie under north pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In most condition which frame of motor will be preferred? Totally enclosed fan coiled. Drip proof. Splash proof. Open type. Totally enclosed fan coiled. Drip proof. Splash proof. Open type. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC machine having P no of pole pairs, Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance for simple wave-winding ? PZL/4Sp² PZL/4S PZL/ 4Sa PZL/4Sa² PZL/4Sp² PZL/4S PZL/ 4Sa PZL/4Sa² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In Ward-Leonard method of speed control, the direction of rotation of motor is reversed usually reversing the connection of the generator field terminal. motor field terminal. generator armature terminal. motor armature terminal. generator field terminal. motor field terminal. generator armature terminal. motor armature terminal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected through inductive coupling in parallel in series either of these depending on the design of the motor through inductive coupling in parallel in series either of these depending on the design of the motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ wound rotor induction motor the short circuit gear is used to short circuit the rotor at slip rings. starting resistance in the starter. None of these stator phases of the motor. rotor at slip rings. starting resistance in the starter. None of these stator phases of the motor. ANSWER DOWNLOAD EXAMIANS APP
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