Single Phase Motors In a universal motor, the most common cause of brush sparking is open armature winding shorted field winding? high commutator mica all of these open armature winding shorted field winding? high commutator mica all of these ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The full load efficiency of a shaded pole motor is about _______ 60 to 70% 30 to 35% 5 to 10% 70 to 80% 60 to 70% 30 to 35% 5 to 10% 70 to 80% ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors For the same rating, the efficiency of a single phase induction motor is _______ that of 3-phase induction motor. The same as None of the listed here Less than More than The same as None of the listed here Less than More than ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The speed of a universal motor is generally reduced by using Chains Gear trains V-belts Brakes Chains Gear trains V-belts Brakes ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The direction of rotation of universal motor can be reversed the by reversing the flow of current through None of these Either armature winding or field winding Armature winding Field winding None of these Either armature winding or field winding Armature winding Field winding ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The best suited motor to drive 1/4 HP fan in a hospital ward would be ______ motor. Shaded pole Hysteresis motor Single phase series motor Capacitor run motor Shaded pole Hysteresis motor Single phase series motor Capacitor run motor ANSWER DOWNLOAD EXAMIANS APP
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