Electrical Machines For the speed control of polyphase squirrel cage induction motor, if frequency of operation is decreased with constant V, Tst increases constant supply voltage V, starting torque Tst decreases None of these either of these constant V, Tst increases constant supply voltage V, starting torque Tst decreases None of these either of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In single phase rotary converter the number of slip rings will be six. three. four. two. six. three. four. two. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator frame in an induction motor is used to protect the whole machine. hold armature stamping in position. ventilate the armature. provide return path for the flux. protect the whole machine. hold armature stamping in position. ventilate the armature. provide return path for the flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of main field flux distribution is? flat tapped or trapezoidal peaky in nature saddle shape triangular flat tapped or trapezoidal peaky in nature saddle shape triangular ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through solid connection. none of above. slip rings. commutator. solid connection. none of above. slip rings. commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field circuit of a DC shunt motor is opened The armature current will reduce. DC Shunt Motor The speed of motor will be reduced. The motor will attain dangerously high speed. The armature current will reduce. DC Shunt Motor The speed of motor will be reduced. The motor will attain dangerously high speed. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS