DC Motors Compensating winding in a dc machine is placed On yoke in the interpolar gap On armature On yoke in the pole faces None of the listed here On yoke in the interpolar gap On armature On yoke in the pole faces None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive motor vibration is caused by Open armature coil Bent shaft Too much brush tension Worn bearings Open armature coil Bent shaft Too much brush tension Worn bearings ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Colliery winders Steel rolling mills Elevators Centrifugal pumps Colliery winders Steel rolling mills Elevators Centrifugal pumps ANSWER DOWNLOAD EXAMIANS APP
DC Motors For constant torque drive which speed control method is preferred? Mechanical loading system Armature voltage control Field control Shunt armature control Mechanical loading system Armature voltage control Field control Shunt armature control ANSWER DOWNLOAD EXAMIANS APP
DC Motors The variable resistor shunting the field of a dc series motor is called a Voltage regulator Armature divertor Potential divider Field divertor Voltage regulator Armature divertor Potential divider Field divertor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive sparking at brushes may be caused due to Dirt on the commutator Misaligment of machine Loose coupling Worn bearings Dirt on the commutator Misaligment of machine Loose coupling Worn bearings ANSWER DOWNLOAD EXAMIANS APP
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