Electrical Machines No load saturation characteristics are plotted between short circuit current and armature current short circuit current and field current no load voltage and field current no load voltage and armature current short circuit current and armature current short circuit current and field current no load voltage and field current no load voltage and armature current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case the conditions for maximum power for DC motor are established, the efficiency of the motor will be Any where between 75 % and 90 %. Around 90 % Around 100 %. Less than 50 % Any where between 75 % and 90 %. Around 90 % Around 100 %. Less than 50 % ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flashing the field of DC generator means increasing flux density by adding extra turns of winding. making the magnetic losses forces parallel. creating residual magnetism by a DC source. neutralising residual magnetism. increasing flux density by adding extra turns of winding. making the magnetic losses forces parallel. creating residual magnetism by a DC source. neutralising residual magnetism. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The type of DC generator used for arc welding purpose is a series generator shunt generator cumulatively compounded generator differentially compounded generator series generator shunt generator cumulatively compounded generator differentially compounded generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Semi closed slots or totally closed slots are used in induction motors, essentially to decrease starting torque increase pull out torque improve starting torque reduce magnetising current and improve power factor decrease starting torque increase pull out torque improve starting torque reduce magnetising current and improve power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the speed of stator rotating magnetic field with respect to rotor rotating magnetic field? Slip speed Zero Synchronous speed None of these Slip speed Zero Synchronous speed None of these ANSWER DOWNLOAD EXAMIANS APP
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