Electrical Machines Induction motors have the advantage of all of below. less maintenance. less cost. simple in construction. all of below. less maintenance. less cost. simple in construction. 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 speed will increase its efficiency will improve its power factor will reduce its speed will reduce its speed will increase its efficiency will improve its power factor will reduce ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The back emf produced in a dc motor depends on P. P and Z. Z. none of these. P. P and Z. Z. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for electromechanical energy conversion. generation of voltage. development of torque. commutation. electromechanical energy conversion. generation of voltage. development of torque. commutation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 200 V DC machine supplies 20 A at 200 V as a generator. The armature resistance is 0.2 Ω. If the machine is now operated as a motor at same terminal voltage and current but with the flux increased by 10%, the ratio of motor speed to generator speed is 1.06 0.95 0.96 0.87 1.06 0.95 0.96 0.87 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of squirrel cage induction motor is low at rated load only low at heavy loads only low at light loads only both A and B low at rated load only low at heavy loads only low at light loads only both A and B ANSWER DOWNLOAD EXAMIANS APP
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