Electrical Machines At stand still condition the value of slip is infinite value 1 finite value 0 infinite value 1 finite value 0 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The constant losses in transformer is/are both 2 and 3. hysteresis loss. copper loss. eddy current loss. both 2 and 3. hysteresis loss. copper loss. eddy current loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Breather is provided in a transformer to absorb moisture from air entering in transformer. provide cold air in transformer. filter the transformer oil. absorb moisture of air during breathing. absorb moisture from air entering in transformer. provide cold air in transformer. filter the transformer oil. absorb moisture of air during breathing. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC motor with armature resistance of 0.5 ohms is connected directly to a 230 Volt supply. If the armature is stationary then the current flowing through armature is 460 A. 570 A. 340 A. 250 A. 460 A. 570 A. 340 A. 250 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which one of the following statement is correct ? In an induction motor if the air gap is increased then its speed will reduce its efficiency will improve its power factor will reduce its speed will increase its speed will reduce its efficiency will improve its power factor will reduce its speed will increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a three phase star - delta transformer, what is the angle difference between primary and secondary phase voltages? Star side leads by 30°. Delta side leads by 30°. Delta side lags by -30°. Star side lags by -30°. Star side leads by 30°. Delta side leads by 30°. Delta side lags by -30°. Star side lags by -30°. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS