Electrical Machines Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor will Decrease.d increase. remains same. none of these. Decrease.d increase. remains same. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in the dc generator armature winding is AC and DC None of these AC DC AC and DC None of these AC DC ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shunt generator has a critical field resistance of 300 Ω at a speed of 800 rpm if the speed is raised to 1000 rpm the critical field resistance is 150 Ω. 225 Ω. 145 Ω. 375 Ω. 150 Ω. 225 Ω. 145 Ω. 375 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, if direct axis reactance and quadrature axis reactance is equal, then power developed due to reluctance is infinite value any of the above maximum zero infinite value any of the above maximum zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motor used in Lathe machine? D.C. cumulative compound motor. D.C. shunt motor. None of these D.C . series motor. D.C. cumulative compound motor. D.C. shunt motor. None of these D.C . series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an auto-transformer, power is transferred through induction process only. conduction process only. both A and B. None of these induction process only. conduction process only. both A and B. None of these ANSWER DOWNLOAD EXAMIANS APP
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