Electrical Machines Flux density under trailing pole tips in case of generator will None of these increase either increase or decrease decrease None of these increase either increase or decrease decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC motors has almost constant speed over their full load range? Series. none of these. Shunt. Compound (cummolative). Series. none of these. Shunt. Compound (cummolative). ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature mmf of a DC machine has triangular space distribution and rotates at the speed of armature. trapezoidal space distribution and is stationary in space. triangular space distribution and is stationary in space. stepped distribution and rotates at the speed of armature. triangular space distribution and rotates at the speed of armature. trapezoidal space distribution and is stationary in space. triangular space distribution and is stationary in space. stepped distribution and rotates at the speed of armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a motor falls from 1100 r.p.m at no-load to 1050 r.p.m at rated load. The speed regulation of motor is 2.57 %. 3.76%. 2.56 %. 4.76%. 2.57 %. 3.76%. 2.56 %. 4.76%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Select the motor that should not be started on no load? Series motor. Shunt motor. Compound motor. Brushless DC motor. Series motor. Shunt motor. Compound motor. Brushless DC motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Poles of DC machine are often laminated to reduce iron weight. reduce pulsation loss. reduce armature reaction. dissipate more heat. reduce iron weight. reduce pulsation loss. reduce armature reaction. dissipate more heat. ANSWER DOWNLOAD EXAMIANS APP
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