Electrical Machines For the same power output rating and full load speed, the motor will have poorest starting torque, is Differential compound. Series. Cummulative compound. Shunt. Differential compound. Series. Cummulative compound. Shunt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements regarding the magnetization characteristics of a dc generator : 1. It represents the variation of field flux with field current. 2. Variation of open-circuit terminal voltage with field current is independent of speed 3. It is non-linear from zero to rated field current 4. It helps to determine the critical field resistance at a given speed 5. It always starts from the origin Which of these statements are correct ? 2, 3 and 4 1 and 4 3 and 5 1, 2 and 5 2, 3 and 4 1 and 4 3 and 5 1, 2 and 5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction depends on which of the following? magnitude of load current None of these power factor of load both 1 and 2 magnitude of load current None of these power factor of load both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator without commutator is a induction motor DC motor AC generator DC generator induction motor DC motor AC generator DC generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in DC generators will result in reduction in generated emf. open circuit. short circuit. increase in slip. reduction in generated emf. open circuit. short circuit. increase in slip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To control the speed of an induction motor, the supply frequency is reduced by 10%. For the same magnetizing current to remain constant, the supply voltage must be reduced by 20% reduced by 10% increased by 20% increased by 10% reduced by 20% reduced by 10% increased by 20% increased by 10% ANSWER DOWNLOAD EXAMIANS APP
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