Electrical Machines The direction of rotation of a DC motor can be determent by Amperes law. Lenzs law. Flemings left hand rule. Flemings right hand rule. Amperes law. Lenzs law. Flemings left hand rule. Flemings right hand rule. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine is invariably provided with forced ventilation? Fractional horse power high speed motor. Fractional horse power slow speed motor. Hermetically sealed motor of refrigerator. 50 MW generator in a power plant. Fractional horse power high speed motor. Fractional horse power slow speed motor. Hermetically sealed motor of refrigerator. 50 MW generator in a power plant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the flux of DC motor approaches zero, its speed will aprroach infinity. approach zero. remain unchanged. between zero and infinity. aprroach infinity. approach zero. remain unchanged. between zero and infinity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slot wedges in a dc machine is made up of cast iron. mild steel. silicon steel. fibre. cast iron. mild steel. silicon steel. fibre. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft of induction motor may be unbalanced due to poor lubrication. overheating of winding. uneven air gap. overload. poor lubrication. overheating of winding. uneven air gap. overload. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines CRGO steel is used in the core of transformer to reduce ohmic loss. eddy current loss. both eddy current and hysteresis loss. hysteresis loss. ohmic loss. eddy current loss. both eddy current and hysteresis loss. hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
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