Single Phase Motors A universal motor operates on Approximately constant speed and load Constant load and varying speed Constant speed and varying load Synchronous speed with varying load Approximately constant speed and load Constant load and varying speed Constant speed and varying load Synchronous speed with varying load ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The speed/load characteristics of a universal motor is same as that of DC shunt motor AC motor DC series motor None of the listed here DC shunt motor AC motor DC series motor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors If a DC series motor is operated on AC supply, it will All of the listed here Have poor power factor Spark excessively Have poor efficiency All of the listed here Have poor power factor Spark excessively Have poor efficiency ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors A motor gets overheated due to All of the listed here Overloads Dry bearings Worn bearings All of the listed here Overloads Dry bearings Worn bearings ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The speed control of universal motor used for sewing machines is by Varying the resistance Centrifugal mechanism Tapping the field Friction Varying the resistance Centrifugal mechanism Tapping the field Friction ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following statements regarding single-phase induction motoris correct ? It is self-starting It is not self-starting It can rotate in one direction only It requires only one winding It is self-starting It is not self-starting It can rotate in one direction only It requires only one winding ANSWER DOWNLOAD EXAMIANS APP