Electrical Machines Poles of DC machine are often laminated to reduce armature reaction. reduce pulsation loss. dissipate more heat. reduce iron weight. reduce armature reaction. reduce pulsation loss. dissipate more heat. reduce iron weight. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When Flemings right hand rule to find the direction of induced emf, the thumb points towards opposite to the direction of motion of the conductor. direction of flux. direction of induced emf. direction of motion of the conductor. opposite to the direction of motion of the conductor. direction of flux. direction of induced emf. direction of motion of the conductor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For successful parallel operation of two single phase transformers, the most essential condition is that their polarities are properly connected percentage impedances are equal turn- ratios are exactly equal KVA ratings are equal polarities are properly connected percentage impedances are equal turn- ratios are exactly equal KVA ratings are equal ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature mmf of a DC machine has triangular space distribution and rotates at the speed of armature. stepped distribution and rotates at the speed of armature. triangular space distribution and is stationary in space. trapezoidal space distribution and is stationary in space. triangular space distribution and rotates at the speed of armature. stepped distribution and rotates at the speed of armature. triangular space distribution and is stationary in space. trapezoidal space distribution and is stationary in space. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To increase starting torque of a 3-phase slip ring induction motor, preferred method is to increase supply frequency supply voltage None of these rotor resistance supply frequency supply voltage None of these rotor resistance ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power indicated on the name plate of any motor is always the Power drawn in KW. Power drawn in KVA. Output power at the shaft. Gross power. Power drawn in KW. Power drawn in KVA. Output power at the shaft. Gross power. ANSWER DOWNLOAD EXAMIANS APP
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