Electrical Machines In a transformer which of the following losses are zero? Rotational loss Iron loss Copper loss All of these Rotational loss Iron loss Copper loss All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor start capacitor run provides high staring torque and high power factor. none. high staring torque only. high power factor only. high staring torque and high power factor. none. high staring torque only. high power factor only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The overall power factor of an on load transformer is always unity. is always leading. depends on the power factor of the load. is always lagging. is always unity. is always leading. depends on the power factor of the load. is always lagging. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator has full-load voltage regulation of 10% at rated speed of 1000 rpm. If it is now driven at 1250 rpm, then its voltage regulation at full load would be more than 10% be less than 10% remain unchanged be 12.5% be more than 10% be less than 10% remain unchanged be 12.5% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two generators G1 and G2 are to be operated in parallel to deliver a total current of 60 A. Generator one has a terminal voltage of 280 V on no load and 240 V when supplying 40 A current. Similarly the second generator has a voltage of 300 V when on no load and 240 V when supplying of 50 A of current. The output voltage of each generator will be 271.7 V. 256.4 V. 240 V. 238.2 V. 271.7 V. 256.4 V. 240 V. 238.2 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output indicate on the name plate of any motor is always the Power drawn in KVA. Output power at the shaft. Power drawn in KW. Gross power. Power drawn in KVA. Output power at the shaft. Power drawn in KW. Gross power. ANSWER DOWNLOAD EXAMIANS APP
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