Electrical Machines Transformers operating in parallel will share the load depending upon their percentage impedance. efficiency. rating. leakage reactance. percentage impedance. efficiency. rating. leakage reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output voltage of a DC generator is E = V + Ra. E = V + Ia. E = V + IaRa. E = V – IaRa. E = V + Ra. E = V + Ia. E = V + IaRa. E = V – IaRa. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power will be developed when back emf is equal to supply voltage. half of the supply voltage. All of these double the supply voltage. equal to supply voltage. half of the supply voltage. All of these double the supply voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is the largest conversion device? DC machine Induction machine Synchronous machine All of these DC machine Induction machine Synchronous machine All of these 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 76.91 V. 56.91 V. 66.91 V. 86.91 V. 76.91 V. 56.91 V. 66.91 V. 86.91 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To get the speed of DC motor more than normal without wastage of electrical energy _____________ is used. rheostatic control. none of above. any of above method. Ward Leonard control. rheostatic control. none of above. any of above method. Ward Leonard control. ANSWER DOWNLOAD EXAMIANS APP
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