Electrical Machines The armature of a DC motor is laminated to reduce copper loss. friction and windage loss. eddy current loss. hysteresis loss. copper loss. friction and windage loss. eddy current loss. hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an induction machine is run at above the synchronous speed it acts as None of these an induction motor an induction generator a synchronous motor None of these an induction motor an induction generator a synchronous motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 V DC generator in run at rated speed with no excitation. The open circuit voltage will be 250 V. zero. very small, say about 2 or 3 V. about 100 V. 250 V. zero. very small, say about 2 or 3 V. about 100 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, the electricity produced in armature is None of these DC. armature is not present in DC generator. AC. None of these DC. armature is not present in DC generator. AC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is very effective for shunt motors. separately excited motors. series motors. differential compound motors. shunt motors. separately excited motors. series motors. differential compound motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What does happen if tripled harmonics given to induction motor? Nothing will happen. Will results in short circuit. Will results in open circuit. Fail to start. Nothing will happen. Will results in short circuit. Will results in open circuit. Fail to start. ANSWER DOWNLOAD EXAMIANS APP
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