Electrical Machines The power flow of a dc motor, with respect to a DC generator is increased. modified. none of these. reversed. increased. modified. none of these. reversed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which one of the following statement is correct ? In an induction motor if the air gap is increased then its efficiency will improve its speed will increase its power factor will reduce its speed will reduce its efficiency will improve its speed will increase its power factor will reduce its speed will reduce ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The volt-ampere euation for a long-shunt compound motor is given by Vt = Ea + Iara+ ILrs Vt = Ea + Ia(ra + rs) Vt= Ea + Iara Vt= Ea– Iara Vt = Ea + Iara+ ILrs Vt = Ea + Ia(ra + rs) Vt= Ea + Iara Vt= Ea– Iara ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At the instant of starting, the per unit slip of 3 - Φ induction motor is 0.05. 1.0. 0.5. 0.1. 0.05. 1.0. 0.5. 0.1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve low starting torque. high efficiency. reduced size. quick acceleration. low starting torque. high efficiency. reduced size. quick acceleration. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator the voltage generated per phase is proportional to All of these flux per pole. frequency of waveform. number of turns in coil. All of these flux per pole. frequency of waveform. number of turns in coil. ANSWER DOWNLOAD EXAMIANS APP
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