Electrical Machines In a 6 pole DC machine, 90 mechanical degrees correspond to which of the following electrical degree? 180. 45. 270. 30. 180. 45. 270. 30. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V DC machine has an armature resistance 1Ω. If the full load current is 20 A, the difference of induced voltage and generator is 60 V. 40 V. 0 V. 20 V. 60 V. 40 V. 0 V. 20 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 100/10, 50 VA double winding transformer is converted to 100/110 V auto transformer. The rating of auto transformer is 100 VA 110 VA 550 VA 500 VA 100 VA 110 VA 550 VA 500 VA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In 3 - Φ induction motor some times copper bars are placed deep in the rotor to improve power factor. reduce copper loss. improve starting torque. improve efficiency. improve power factor. reduce copper loss. improve starting torque. improve efficiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 6 pole, 50 Hz IM has a rotor speed of 987 rpm find rotor frequency? 0.70 Hz. 60 Hz. 0.75 Hz. 0.65 Hz. 0.70 Hz. 60 Hz. 0.75 Hz. 0.65 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor in split phase induction motor is used to improve the power factor. reduce the harmonics. improve the starting torque. start the motor. improve the power factor. reduce the harmonics. improve the starting torque. start the motor. ANSWER DOWNLOAD EXAMIANS APP
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