Electrical Machines In which transformer, the tertiary winding is used? Delta - star Star - delta Delta - delta Star - star Delta - star Star - delta Delta - delta Star - star ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm? 20 Hz. 35 Hz. Can be determined. 30 Hz. 20 Hz. 35 Hz. Can be determined. 30 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flashing of DC generator means creation of residual magnetism by a DC source. neutralization of residual magnetism. None of these increasing flux density by providing extra ampere-turns in field. creation of residual magnetism by a DC source. neutralization of residual magnetism. None of these increasing flux density by providing extra ampere-turns in field. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increases in field excitation of a DC generator, its generated emf increases. increases upto a limit and then remains almost constant. remains constant. decreases. increases. increases upto a limit and then remains almost constant. remains constant. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series motor is efficiently suitable for none of these. low starting torque operation. constant speed operation. high starting torque operation. none of these. low starting torque operation. constant speed operation. high starting torque operation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Centrifugal switch is absent in which of the single phase induction motor? Split phase motor. PSC (permanent split capacitor) motor. Shaded pole motor. None of these Split phase motor. PSC (permanent split capacitor) motor. Shaded pole motor. None of these ANSWER DOWNLOAD EXAMIANS APP
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