Electrical Machines What is the highest possible speed of turbo alternators? 4000 rpm 1000 rpm 1500 rpm 3000 rpm 4000 rpm 1000 rpm 1500 rpm 3000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the armature reaction results in magnetization of inter poles. demagnetization of leading & magnetization of trailing pole tip. magnetization of leading and demagnetization of trailing pole tip. demagnetization of centers of poles. magnetization of inter poles. demagnetization of leading & magnetization of trailing pole tip. magnetization of leading and demagnetization of trailing pole tip. demagnetization of centers of poles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load primary current in a transformer lags behind applied voltage somewhat less than 90à lags behind applied voltage by exactly 90Â&am leads the applied voltage somewhat less than 90Ã& leads the applied voltage by exactly 90Â& lags behind applied voltage somewhat less than 90à lags behind applied voltage by exactly 90Â&am leads the applied voltage somewhat less than 90Ã& leads the applied voltage by exactly 90Â& ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, maximum power occurs at a load angle of Greater than 90° 90° 0° less than 90° Greater than 90° 90° 0° less than 90° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The low voltage winding of a 400/230 V single phase 50 Hz transformer is to be connected to keep the magnetization current at the same level in both the cases the voltage at 25 Hz should be 230 V 460 V 65 V 115 V 230 V 460 V 65 V 115 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tap changer is generally provided in current transformer. voltage transformer. power transformer. earthing transformer. current transformer. voltage transformer. power transformer. earthing transformer. ANSWER DOWNLOAD EXAMIANS APP
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