Single Phase Motors The speed control of universal motor used for sewing machines is by Friction Tapping the field Centrifugal mechanism Varying the resistance Friction Tapping the field Centrifugal mechanism Varying the resistance ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In a shaded pole motor, the direction of rotation is from None of the listed here Main poles to shaded pole Depends on supply line polarity Shaded pole to main pole None of the listed here Main poles to shaded pole Depends on supply line polarity Shaded pole to main pole ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors A universal motor operates on 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 Approximately constant speed and load Constant load and varying speed Constant speed and varying load ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following motors has highest starting torque ? Capacitor-start motor Repulsion motor Shaped pole motor Split-phase motor Capacitor-start motor Repulsion motor Shaped pole motor Split-phase motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which motor will make least noise? Shaded pole motor Hysteresis motor Capacitor motor Universal motor Shaded pole motor Hysteresis motor Capacitor motor Universal motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will Run as induction motor Draw excessive armature current and may burn out Fall out of synchronism and come to stand still Become unstable Run as induction motor Draw excessive armature current and may burn out Fall out of synchronism and come to stand still Become unstable ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS