Electrical Machines Pole changing methods are suitable only for ___________ type induction motor. cage. linear. wound. none of these. cage. linear. wound. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following alternators contain large number of poles? Aame in both alternators. None of these Hydro alternators. Turbo alternators. Aame in both alternators. None of these Hydro alternators. Turbo alternators. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In escalator which motor is used? Universal motor. 1 - φ IM. DC shunt motor. 3 - φ IM. Universal motor. 1 - φ IM. DC shunt motor. 3 - φ IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ IM with line frequency f1 and winding factor kw1 and kw2 for stator and rotor respectively the ratio of per phase stator winding emf E1 to per phase rotor winding emf E2 at standstill is given by E1 / E2 = N1kw1 / N2kw2. E1 / E2 = 1. E1 / E2 = N1 / N2. E1 / E2 = f1kw1 / f2kw2. E1 / E2 = N1kw1 / N2kw2. E1 / E2 = 1. E1 / E2 = N1 / N2. E1 / E2 = f1kw1 / f2kw2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dummy coils are used for reducing armature reaction. increasing efficiency. All of these mechanical balancing. reducing armature reaction. increasing efficiency. All of these mechanical balancing. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The basic function of a transformer is to change the level of the voltage the power factor the frequency the power level the level of the voltage the power factor the frequency the power level ANSWER DOWNLOAD EXAMIANS APP
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