Electrical Machines Equalizer rings are used in which of the followings? wave winding both 1 and 2 None of these lap winding wave winding both 1 and 2 None of these lap winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements regarding dc machines : 1. possible resistance of shunt-field winding is 1 Ω 2. possible resistance of series-field winding is 1 Ω 3. electrographite brushes are used for 230 V, 10 A machines 4. Copper-graphite brushes are used for 230 V, 10 A machines 5. Possible armature-circuit resistance is 1 Ω From these, the correct statements are 2, 4 ,5 2, 3 , 5 1, 4 1, 3, 5 2, 4 ,5 2, 3 , 5 1, 4 1, 3, 5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulation method is accurate ? MMf method ZPF method American standard association method Synchronous impedance method MMf method ZPF method American standard association method Synchronous impedance method ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque angle, in a synchronous motor, is the angle between None of these the supply voltage and the back emf. the rotating stator flux and rotor flux. magnetizing electric current and back emf. None of these the supply voltage and the back emf. the rotating stator flux and rotor flux. magnetizing electric current and back emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors is/are widely used? slip ring induction motor None of these squirrel cage induction motor either of these slip ring induction motor None of these squirrel cage induction motor either of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the rotor of a 3 phase induction motor is blocked then the slip is 0.7. 0.3. 0.54. 1. 0.7. 0.3. 0.54. 1. ANSWER DOWNLOAD EXAMIANS APP
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