Electrical Machines The heat generated in the transformer is dissipated mainly by convection. All of these conduction. radiation. convection. All of these conduction. radiation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the advantages of parallel operation of alternators? Increase efficiency under light load conditions Increase in reliability continuity supply is maintained All of these Increase efficiency under light load conditions Increase in reliability continuity supply is maintained All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, if the supply voltage and frequency are reduced by the same ratio, then slip at which maximum torque occurs is more and maximum torque remains constant more and maximum torque decreases less and maximum torque increases less and maximum torque decreases more and maximum torque remains constant more and maximum torque decreases less and maximum torque increases less and maximum torque decreases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When maximum flux density is constant, the eddy current losses are proportional to f f2 V V2 f f2 V V2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following will vary the maximum torque? rotor reactance X None of these both 1 and 2 rotor resistance R rotor reactance X None of these both 1 and 2 rotor resistance R ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The functions of inter poles are nullify reactance voltage and improve the commutation. None of these reduce cross magnetization effect and improve commutation both 1 and 2 nullify reactance voltage and improve the commutation. None of these reduce cross magnetization effect and improve commutation both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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