Electrical Machines Which of the following generators are used in arc welding? cumulative compound generators differential compound generators shunt generators series generators cumulative compound generators differential compound generators shunt generators series generators ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator without commutator is a DC generator DC motor induction motor AC generator DC generator DC motor induction motor AC generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/V ratio of a DC motor is an indication of Effiency. Starting torque. Speed regulation. Running Torque. Effiency. Starting torque. Speed regulation. Running Torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements: To control the speed of a dc shunt motor above the base speed over a reasonably wide range, the motor must 1. have compensating winding 2. have interpole winding 3. be started using a 3-point starter 4. be started using a 4-point starter Of these statements 1, 2 and 4 are correct 1 and 3 are correct 1, 2 and 3 are correct 2 and 4 are correct 1, 2 and 4 are correct 1 and 3 are correct 1, 2 and 3 are correct 2 and 4 are correct ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator with a diameter of 50 cm rotating at 1000 rpm. For a brush width of 1.5 cm, find the time of commutation in ms. 0.573. 0.512. 0.443. 0.649. 0.573. 0.512. 0.443. 0.649. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator core of a 3 - Φ induction motor is laminated in order to reduce the weight of the stator. both of the above. eddy current loss. hysteresis loss. weight of the stator. both of the above. eddy current loss. hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
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