Electrical Machines A DC generator without commutator is a AC generator DC generator DC motor induction motor AC generator DC generator DC motor induction motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by f / s. sf. s2. sf / 2. f / s. sf. s2. sf / 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are not a self starting motor? 1-phase induction motor both 1 and 2 None of these 3-phase induction motor 1-phase induction motor both 1 and 2 None of these 3-phase induction motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor hunting can be reduced to minimum possible by designing the motor for adequate synchronizing power. any of above methods. providing damper winding in the rotor pole faces. using a flywheel. designing the motor for adequate synchronizing power. any of above methods. providing damper winding in the rotor pole faces. using a flywheel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronising power of a synchronous motor varies inversely as 1/Xs All of these directly as synchronous reactances Xs directly as Xs2 inversely as 1/Xs All of these directly as synchronous reactances Xs directly as Xs2 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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