DC Motors The main disadvantage of the Ward-Leonard control method is Low efficiency at high loads High maintenance cost High initial cost All of these Low efficiency at high loads High maintenance cost High initial cost All of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. motor which of the following can sustain the maximum temperature rise? Armature winding Field winding Commutator Slip rings Armature winding Field winding Commutator Slip rings ANSWER DOWNLOAD EXAMIANS APP
DC Motors Motor starter are essential for Accelerating the motor Preventing fuse blowing Starting the motor Avoiding excessive starting current Accelerating the motor Preventing fuse blowing Starting the motor Avoiding excessive starting current ANSWER DOWNLOAD EXAMIANS APP
DC Motors The most suitable motor for elevators is the ____ motor. Shunt Cummulative compounded Series Differentially compuonded Shunt Cummulative compounded Series Differentially compuonded ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not the function of pole shoes in a D.C. machine? To spread out flux for better uniformity To support the field coils To reduce the reluctance of the magnetic path To reduce eddy current loss To spread out flux for better uniformity To support the field coils To reduce the reluctance of the magnetic path To reduce eddy current loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors The variable resistor shunting the field of a dc series motor is called a Field divertor Voltage regulator Armature divertor Potential divider Field divertor Voltage regulator Armature divertor Potential divider ANSWER DOWNLOAD EXAMIANS APP
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