Electrical Machines Slip test is performed to determine direct axis reactance and quadrature axis reactance positive sequence reactance and negative sequence reactance All of these slip direct axis reactance and quadrature axis reactance positive sequence reactance and negative sequence reactance All of these slip ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following methods are suitable for the speed control of squirrel cage induction motor? 1. Voltage control. 2. Frequency control. 3. Pole changing method. 4. Rotor resistance control select the correct answer using the codes given below:- 2 and 4. 1, 3 and 4. 2, 3 and 4. 1, 2 and 3. 2 and 4. 1, 3 and 4. 2, 3 and 4. 1, 2 and 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions is a dc motor provided with compensating winding used ? 1. Wide range of speed control above normal 2. Wide range of steady load variation with no speed control 3.Wide range of rapid variation in load Select the correct answer using the codes given below : Codes : 1 and 3 1, 2 and 3 2 and 3 1 and 2 1 and 3 1, 2 and 3 2 and 3 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To achieve spark less commutation brushes of DC generator are rocked ahead so as to bring them just ahead of magnetic neutral axis. in magnetic neutral axis. just behind the magnetic neutral axis. None of these just ahead of magnetic neutral axis. in magnetic neutral axis. just behind the magnetic neutral axis. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the operating region of slip in a 1-phase induction motor? -2 < S < 2 0 < S < 2 0 < S < 1 -1 < S < 1 -2 < S < 2 0 < S < 2 0 < S < 1 -1 < S < 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Universal motors are used in food processing cranes All of these traction food processing cranes All of these traction ANSWER DOWNLOAD EXAMIANS APP
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