Electrical Machines The self induced emf in the coil undergoing commutation is called the None of these dynamically induced voltage. reactance voltage. statically induced voltage. None of these dynamically induced voltage. reactance voltage. statically induced voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm. Find the rotor efficiency? 94% 96% 95% 92% 94% 96% 95% 92% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which method is less recommendable for induction motor starting in the industries? Auto transformer starting. Stator resistance starting. Rotor resistance starting. Direct online starting. Auto transformer starting. Stator resistance starting. Rotor resistance starting. Direct online starting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The frame of an induction motor is made of silicon steel. stainless steel. aluminium. closed grained cast iron. silicon steel. stainless steel. aluminium. closed grained cast iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of slip rings in 3-phase synchronous motor will be 3 or 4 1 2 0 3 or 4 1 2 0 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a shunt generator delivers 100 A at 200 V, and the resistances of the shunt field and armature are 100 ohms and 0.01 ohms respectively, the generator emf will be any one of the connection. no resistance is connected. series. parallel. any one of the connection. no resistance is connected. series. parallel. ANSWER DOWNLOAD EXAMIANS APP
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