Electrical Machines A 250 V DC generator in run at rated speed with no excitation. The open circuit voltage will be 250 V. very small, say about 2 or 3 V. zero. about 100 V. 250 V. very small, say about 2 or 3 V. zero. about 100 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine 6 pole wave winding is used. The number of parallel paths are? 6 4 1 2 6 4 1 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which method is less recommendable for induction motor starting in the industries? Rotor resistance starting. Stator resistance starting. Auto transformer starting. Direct online starting. Rotor resistance starting. Stator resistance starting. Auto transformer starting. Direct online starting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To eliminate 5th harmonic in the induced voltage phase breadth should be 36° 18° 30° 72° 36° 18° 30° 72° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? Synchronous impedance method. All of these ZPF method. MMf method. Synchronous impedance method. All of these ZPF method. MMf method. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increase in speed of a DC motor both back emf as well as line current fall. back emf falls and line current increases. back emf increases but line current falls. both back emf as well as line current increase. both back emf as well as line current fall. back emf falls and line current increases. back emf increases but line current falls. both back emf as well as line current increase. ANSWER DOWNLOAD EXAMIANS APP
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