Electrical Machines What is power factor of a 3 - φ induction motor at no load? Same as full load. High. Low. Equal to 1. Same as full load. High. Low. Equal to 1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Type of single phase motor having highest power factor at full load is split phase. capacitor start. shaded pole type. capacitor run. split phase. capacitor start. shaded pole type. capacitor run. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A Shunt generator running at 1000 rpm has generated emf of 100 V. If the speed increases to 1200 rpm, the generated emf will be nearly 140 V 240 V 175 V 120 V 140 V 240 V 175 V 120 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Thin laminations are used in a machine in order to reduce Copper losses Eddy current losses Hysteresis losses Both 1 and 2 Copper losses Eddy current losses Hysteresis losses Both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines R1 is the resistance of the primary winding of the transformer. The turn ratio in terms of primary to secondary is K. Then the equivalent resistance of the primary referred to secondary is R1 /K R1 /K² K²R1 K×R1 R1 /K R1 /K² K²R1 K×R1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are effects of armature reaction? increase the iron loss increases the design cost increase the maintenance and repair All of these increase the iron loss increases the design cost increase the maintenance and repair All of these ANSWER DOWNLOAD EXAMIANS APP
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