Electrical Machines Which of the following DC generators has rising V-I characteristics? Shunt. None of them. Compound. Series. Shunt. None of them. Compound. Series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be 0.62. 1.24. 0.72. 0.25. 0.62. 1.24. 0.72. 0.25. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Shunt Motor has disadvantage(s) of not suitable for rapidly changing loads. constant speed. less expensive. none of above. not suitable for rapidly changing loads. constant speed. less expensive. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For standing a DC motor a starter is required because None of these it limits the speed of the motor. it limits the starting current to a safe value. It starts the motor. None of these it limits the speed of the motor. it limits the starting current to a safe value. It starts the motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A part an alternator winding consist of eight coils in series, each having an emf of 20 V rms induced in it. Coils are placed in successive slots and between each slot and the next, there is an electrical phase displacement of 30°. Find the emf of eight coils in series 66.91 V. 86.91 V. 56.91 V. 76.91 V. 66.91 V. 86.91 V. 56.91 V. 76.91 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements is/are correct statements? All of these EMF per turn in both the windings are equal EMF per turn in HV winding is more than EMF per turn in LV winding EMF per turn in HV winding is less than EMF per turn in LV winding All of these EMF per turn in both the windings are equal EMF per turn in HV winding is more than EMF per turn in LV winding EMF per turn in HV winding is less than EMF per turn in LV winding ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS