Electrical Machines Transformers operating in parallel will share the load depending upon their efficiency. leakage reactance. rating. percentage impedance. efficiency. leakage reactance. rating. percentage impedance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An alternator is feeding an infinite busbar. Its prime mover is suddenly shutdown. The alternator will start working as induction motor. continue to work as synchronous motor with same direction of rotation. come to stand still. continue to work as alternator but the direction of rotation will reverse. start working as induction motor. continue to work as synchronous motor with same direction of rotation. come to stand still. continue to work as alternator but the direction of rotation will reverse. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt motor runs at a no-load speed of 1140 rpm. At full load, armature reaction weakens the main flux by 5% whereas the armature circuit voltage drops by 10%. The motor full-load speed in rpm is 1203 1000 1200 1080 1203 1000 1200 1080 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 volt dc series motor having an armature resistance of 0.2 Ω takes a load current of 60 A. What will be the torque produced at the shaft of the motor? Consider brush drop of 1V. 133.22 N-m 266.20 N-m. 234.76 N-m. can not be determined. 133.22 N-m 266.20 N-m. 234.76 N-m. can not be determined. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following, voltage regulation may be zero or negative unity power factor All of these leading power factor lagging power factor unity power factor All of these leading power factor lagging power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, lap winding is used in high current and low voltage applications. high voltage and low current applications. where constant speed is required. where greater load is connected. high current and low voltage applications. high voltage and low current applications. where constant speed is required. where greater load is connected. ANSWER DOWNLOAD EXAMIANS APP
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