Single Phase Motors In a universal motor, the most common cause of brush sparking is shorted field winding? high commutator mica all of these open armature winding shorted field winding? high commutator mica all of these open armature winding 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 Fall out of synchronism and come to stand still Become unstable Draw excessive armature current and may burn out Run as induction motor Fall out of synchronism and come to stand still Become unstable Draw excessive armature current and may burn out Run as induction motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Most of the fractional horsepower motors have either ball or roller bearings plain or sleeve bearings soft and porous bearings hard and annealed bearings ball or roller bearings plain or sleeve bearings soft and porous bearings hard and annealed bearings ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors A Reluctance motor Is constant speed motor Is self starting Need no dc excitation All of the listed here Is constant speed motor Is self starting Need no dc excitation All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors If a DC series motor is operated on AC supply, it will Have poor power factor All of the listed here Spark excessively Have poor efficiency Have poor power factor All of the listed here Spark excessively Have poor efficiency ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following is most economical method of starting a single phase induction motor? Inductance start method Split phase method Resistance start method Capacitor start method Inductance start method Split phase method Resistance start method Capacitor start method ANSWER DOWNLOAD EXAMIANS APP
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