Electrical Machines For the purpose of starting an induction motor, star/delta switch is an equivalent to auto transformer of ratio 50% 57.7% 33.3% 66.3% 50% 57.7% 33.3% 66.3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field weakening method is also called as-----------? constant power control constant torque control constant current control constant voltage control constant power control constant torque control constant current control constant voltage control ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in the dc generator armature winding is AC None of these DC AC and DC AC None of these DC AC and DC ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors is/are widely used? slip ring induction motor squirrel cage induction motor None of these either of these slip ring induction motor squirrel cage induction motor None of these either of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 500 V, 55 kVA single phase alternator has an effective resistance of 0.5 Ω. An excitation current of 10 A produces 200 A armature current on short circuit and an emf of 450 V on per circuit. The synchronous reactance will be 2.781 Ω. 2.241 Ω. 2.74 Ω. 25.564 Ω. 2.781 Ω. 2.241 Ω. 2.74 Ω. 25.564 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltmeter connected across a generator reads voltage same at no load and at full load (rated). The generator is of the type short - shunt generator. level compound. series generator. shunt generator. short - shunt generator. level compound. series generator. shunt generator. ANSWER DOWNLOAD EXAMIANS APP
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