Electrical Machines which of the following losses are negligible in blocked rotor test? iron loss copper loss both A and B mechanical loss iron loss copper loss both A and B mechanical loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the phase difference between two windings of A.C servomotor ? 30°. 120°. 90°. 60°. 30°. 120°. 90°. 60°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has more stability None of these cylindrical motor salient pole motor both motors has same stability None of these cylindrical motor salient pole motor both motors has same stability ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine, the armature windings are placed on the rotor because of necessity for commutation. development of torque. electromechanical energy conversion. generation of voltage. commutation. development of torque. electromechanical energy conversion. generation of voltage. 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 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 its speed will reduce ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power indicated on the name plate of any motor is always the Power drawn in KW. Gross power. Power drawn in KVA. Output power at the shaft. Power drawn in KW. Gross power. Power drawn in KVA. Output power at the shaft. ANSWER DOWNLOAD EXAMIANS APP
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