DC Motors If a dc motor is comnected across the AC supply it will Run at lower speed Burn due to heat produced in the field winding by eddy currents Not run Run at normal speed Run at lower speed Burn due to heat produced in the field winding by eddy currents Not run Run at normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The armature torque of the D.C. shunt motor is proportional to field flux only armature current only None of these both (A) and (B) field flux only armature current only None of these both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Thyratron Transistor Thermistor Thyristor Thyratron Transistor Thermistor Thyristor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which D.C. motor is generally preferred for cranes and hoists? Shunt motor Series motor Differentially compounded motor Cumulatively compounded motor Shunt motor Series motor Differentially compounded motor Cumulatively compounded motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Steel rolling mills Colliery winders Centrifugal pumps Elevators Steel rolling mills Colliery winders Centrifugal pumps Elevators ANSWER DOWNLOAD EXAMIANS APP
DC Motors The most suitable motor for elevators is the ____ motor. Shunt Series Cummulative compounded Differentially compuonded Shunt Series Cummulative compounded Differentially compuonded ANSWER DOWNLOAD EXAMIANS APP
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