Electrical Machines If field current is decreased in shunt dc motor, the speed of the motor None of these increases. remains same. decreases. None of these increases. remains same. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC motor with armature resistance of 0.5 ohms is connected directly to a 230 Volt supply. If the armature is stationary then the current flowing through armature is 570 A. 250 A. 340 A. 460 A. 570 A. 250 A. 340 A. 460 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine, the armature windings are placed on the rotor because of necessity for development of torque. commutation. generation of voltage. electromechanical energy conversion. development of torque. commutation. generation of voltage. electromechanical energy conversion. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power input to a 3 - φ induction motor is 60 kW and stator loss is 1 kW the rotor cu loss per phase is slip X 50 / 3. 1. slip X 59 / 3. slip X 69 / 3. slip X 50 / 3. 1. slip X 59 / 3. slip X 69 / 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The efficiency of a transformer is mainly dependent on copper losses. core losses. dielectric losses. stray losses. copper losses. core losses. dielectric losses. stray losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which transformer, the tertiary winding is used? Star - delta Star - star Delta - star Delta - delta Star - delta Star - star Delta - star Delta - delta ANSWER DOWNLOAD EXAMIANS APP
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