Electrical Machines 1 KVA, 230 V, 50 Hz, single phase transformer has an eddy current loss of 30 watts. The eddy current loss when the transformer is excited by a dc source of same voltage will be less than 30 W 30 W zero watt more than 30 W less than 30 W 30 W zero watt more than 30 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In IM the rotor lamination can be ________________ than stator laminations. thicker. rotor can not have any laminations. sipper. thinner. thicker. rotor can not have any laminations. sipper. thinner. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following, voltage regulation may be zero or negative All of these lagging power factor unity power factor leading power factor All of these lagging power factor unity power factor leading power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines As compared to an induction motor, the air gap in a DC motor is same. between 50% and 90%. more. less than 50%. same. between 50% and 90%. more. less than 50%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole lap wound dc generator has 4 brushes, if one of the brush is damaged, what will be the change in V, I and P ratings V, I and P V/2, I/2 and P/4 V, I/2 and P/2 V/2, I and P/2 V, I and P V/2, I/2 and P/4 V, I/2 and P/2 V/2, I and P/2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a transformer to be tested at full load conditions but consuming only losses from the main, we do OC and SC tests back to back test None of these load test OC and SC tests back to back test None of these load test ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS