DC Motors Differentially compound D.C. motors can find applications requiring Frequent on-off cycles Low starting torque Variable speed High starting torque Frequent on-off cycles Low starting torque Variable speed High starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive motor vibration is caused by Open armature coil Worn bearings Bent shaft Too much brush tension Open armature coil Worn bearings Bent shaft Too much brush tension ANSWER DOWNLOAD EXAMIANS APP
DC Motors These days dc motors are widely used in Electric traction Machine shops Air compressors Pumping sets Electric traction Machine shops Air compressors Pumping sets ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. shunt motors as load is reduced The speed will increase abruptly The speed will remain almost/constant The speed will reduce The speed will increase in proportion to reduction in load The speed will increase abruptly The speed will remain almost/constant The speed will reduce The speed will increase in proportion to reduction in load ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? Regenerative braking Plugging None of these Rheostat braking Regenerative braking Plugging None of these Rheostat braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors The direction of rotation of a D.C. series motor can be changed by Either of (A) and (B) above Interchanging supply terminals Interchanging field terminals None of these Either of (A) and (B) above Interchanging supply terminals Interchanging field terminals None of these ANSWER DOWNLOAD EXAMIANS APP
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