Related InterviewSolutions

• The static excitations mainly comprises of _______(a) brushless excitation system(b) thyrister based excitation system(c) synchronous motor excitation system(d) brushless and thyristor based excitation systemI have been asked this question in class test.My enquiry is from Excitation Systems for Synchronous Machines topic in section Synchronous Machines of Electrical Machines
• The excitation system and speed of alternator has _______(a) linear response(b) exponential response(c) rectangular hyperbola response(d) circular responseThis question was posed to me in homework.This key question is from Excitation Systems for Synchronous Machines in chapter Synchronous Machines of Electrical Machines
• The zero power characteristics used in the Potier plot can be obtained by loading the alternator using ___________(a) synchronous motor(b) lamp load(c) dc motor(d) induction motorI had been asked this question in an international level competition.My enquiry is from Synchronous Machine Applications topic in section Synchronous Machines of Electrical Machines
• The power factor of an alternator under short circuit condition will be almost near ____________(a) zero lagging(b) zero leading(c) unity(d) depends on the type of the alternatorThe question was asked in an online interview.Enquiry is from Synchronous Machine Applications in section Synchronous Machines of Electrical Machines
• In a 3-phase cylindrical rotor alternator the _________(a) field mmf leads air gap flux, air gap flux leads armature flux(b) field mmf leads air gap flux, air gap flux lags armature flux(c) armature mmf leads air gap flux and air gap flux leads field flux(d) armature mmf leads air gap flux and air gap flux lags field fluxThe question was asked in a job interview.I'd like to ask this question from Synchronous Machine Applications in section Synchronous Machines of Electrical Machines
• Synchronous motor has been preferred for driving the loads requiring high power at low speeds.(a) True(b) FalseThe question was asked in a national level competition.I would like to ask this question from Synchronous Machine Applications topic in section Synchronous Machines of Electrical Machines
• The practical speed ranges for the thermal, nuclear and hydel power plants is (in rpm)?(a) 3000, 3000, 300(b) 3000, 300, 300(c) 1500, 1500, 3000(d) 1000, 500, 3000I have been asked this question during an online exam.Origin of the question is Synchronous Machine Applications in portion Synchronous Machines of Electrical Machines
• A synchronous machine with its field winding on stator and polyphase armature winding on rotor. At steady state, its air gap field is?(a) stationary w.r.t. stator(b) rotating at double the speed Ns w.r.t. rotor(c) rotating in direction opposite to rotor(d) all of the mentionedI got this question in quiz.Origin of the question is Synchronous Machine Applications in chapter Synchronous Machines of Electrical Machines
• A synchronous machine with its field winding on rotor and polyphase armature winding on stator. At steady state running condition, its air gap field is?(a) stationary w.r.t. stator(b) rotating at double the Ns w.r.t. rotor(c) rotating at -Ns w.r.t. rotor(d) stationary w.r.t. rotor.The question was asked in my homework.This intriguing question comes from Synchronous Machine Applications in portion Synchronous Machines of Electrical Machines
• The condition which allows the torques to be taken care for choosing a synchronous motor is/are?(a) starting torque(b) pull-in torque(c) pull-out torque(d) all of the mentionedI had been asked this question in an interview.I need to ask this question from Synchronous Machine Applications in portion Synchronous Machines of Electrical Machines