Electrical Machines The main disadvantage(s) of the ward-Leonard system is/are high maintenance cost. high initial cost. all of above. poor overall efficiency. high maintenance cost. high initial cost. all of above. poor overall efficiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stepper motor is used in computer printers All of these food processing traction computer printers All of these food processing traction ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor slots are slightly skewed in squirrel cage induction motor to decrease the amount of copper to be used. provide ease of fabrication. reduce the magnetic hum and locking tendency of rotor. increase the strength of rotor bars. decrease the amount of copper to be used. provide ease of fabrication. reduce the magnetic hum and locking tendency of rotor. increase the strength of rotor bars. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Scott connections are used for three phase to single phase transformation. single phase to three phase transformation. three phase to two phase transformation. any of the above. three phase to single phase transformation. single phase to three phase transformation. three phase to two phase transformation. any of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature core of the rotor bars of dc motors are laminated to reduce hysteresis loss. to reduce eddy current loss. to reduce mechanical losses. to provide better flux linkage. to reduce hysteresis loss. to reduce eddy current loss. to reduce mechanical losses. to provide better flux linkage. 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 3 are correct 1, 2 and 4 are correct 1 and 3 are correct 2 and 4 are correct 1, 2 and 3 are correct 1, 2 and 4 are correct 1 and 3 are correct 2 and 4 are correct ANSWER DOWNLOAD EXAMIANS APP
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