Home / Alternator – Multiple Choice Questions or MCQs

Alternator – Multiple Choice Questions or MCQs

[rapid_quiz question=”If the excitation is critical, the power factor of the alternator is” answer=”unity power factor” options=”leading power factor|lagging power factor|unity power factor|none of the above” notes=”Unity Power Factor is Correct !!!”] [rapid_quiz question=”In a synchronous generator with constant steam input supplies power to an infinite bus at a lagging power factor. If the excitation is increased” answer=”both power angle and power factor decrease” options=”power angle decrease and power factor increase|both power angle and power factor decrease|both power angle and power factor increase|power angle increase and power factor decrease” notes=”both power angle and power factor decrease is correct answer”] [rapid_quiz question=”If direct axis reactance Xd and quadrature axis reactance Xq are equal, then reluctance power is” answer=”Zero” options=”maximum|Minimum|Zero|all of the above” notes=”Zero Is Correct Answer”] [rapid_quiz question=”The field system of an alternator is usually excited” answer=”250 / 250 V DC.” options=”110 / 220 V AC.|250 / 250 V DC.|230 V AC.|110 V DC” notes=”250 / 250 V DC. is Correct Answer”] [rapid_quiz question=”Modern 3-phase alternator of a central power station will have generated voltage of” answer=”11 KV” options=”400 kV|132 kV.|11 KV|230 V” notes=”11KV is Correct Answer”] [rapid_quiz question=”Torque angle of a synchorous machine operating from a constant voltage bus is usually defined as the space angle between” answer=”Rotor mmf wave and stator mmf wave.” options=”Stator mmf wave and resultant mmf wave.|Stator mmf wave and resultant flux density.|Rotor mmf wave and resultant flux density wave.|Rotor mmf wave and stator mmf wave.” notes=”Rotor mmf wave and stator mmf wave. i s Correct Answer”]

 

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