Electrical Machines Induction motors have the advantage of less cost. simple in construction. all of below. less maintenance. less cost. simple in construction. all of below. less maintenance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC motor are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor ? 14.28%. 15.30%. 16.67%. 18.25%. 14.28%. 15.30%. 16.67%. 18.25%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the flux of DC motor approaches zero, its speed will remain unchanged. between zero and infinity. approach zero. aprroach infinity. remain unchanged. between zero and infinity. approach zero. aprroach infinity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is done in speed control of DC motor by field flux control? Inserting resistance to armature circuit and field circuit. Inserting an additional resistance in the armature circuit. Inserting an additional resistance in the field circuit. Any of above. Inserting resistance to armature circuit and field circuit. Inserting an additional resistance in the armature circuit. Inserting an additional resistance in the field circuit. Any of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of DC machine is made of silicon steel lamination to reduce both eddy current and hysteresis loss. reduce eddy current loss only. increase the permeability. reduce hysteresis loss only. reduce both eddy current and hysteresis loss. reduce eddy current loss only. increase the permeability. reduce hysteresis loss only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The frame of an induction motor is made of stainless steel. aluminium. closed grained cast iron. silicon steel. stainless steel. aluminium. closed grained cast iron. silicon steel. ANSWER DOWNLOAD EXAMIANS APP
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