Electrical Machines A 3-phase, 2 pole, 12 slot synchronous machine is operating at synchronous speed. Find the slot angle? 18° 60° 20° 30° 18° 60° 20° 30° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If two 8-pole dc machines of identical armature sare wound, one with lap winding and the other with wave winding, then wave-wound machine will have more rated voltage and less current lap-wound machine will have more rated voltage and less current wave-wound machine will have more rated current and more voltage lap-wound machine will have more rated voltage and more current wave-wound machine will have more rated voltage and less current lap-wound machine will have more rated voltage and less current wave-wound machine will have more rated current and more voltage lap-wound machine will have more rated voltage and more current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the rotating losses of machine? All of the them Eddy current losses Hysteresis losses Friction and windage losses All of the them Eddy current losses Hysteresis losses Friction and windage losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a cumulatively compound DC motor can be controlled by varying Armature voltage control. Shunt field resistance control. Any of above. Armature resistance control. Armature voltage control. Shunt field resistance control. Any of above. Armature resistance control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature MMF waveform of a DC machine is sinusoidal. rectangular. triangular. pulsating. sinusoidal. rectangular. triangular. pulsating. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the necessary conditions for parallel operation of alternators? Speed of alternators should be same Both 1and 2 Frequency should be same Terminal voltage is same Speed of alternators should be same Both 1and 2 Frequency should be same Terminal voltage is same ANSWER DOWNLOAD EXAMIANS APP
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