DC Motors In the dc motor the iron losses occur in Brushes Commutator Field Armature Brushes Commutator Field Armature ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is to be selected for conveyors, which motor would be preferred? Series motor Differentially compound motor Cummulative compound motor Shunt motor Series motor Differentially compound motor Cummulative compound motor Shunt motor 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 For a D.C. shunt motor if the excitation is changed Torque will change but power will remain constant Torque, power and speed, all will change Torque will remain constant Torque and power both will change Torque will change but power will remain constant Torque, power and speed, all will change Torque will remain constant Torque and power both will change ANSWER DOWNLOAD EXAMIANS APP
DC Motors In variable speed motor Same commutating field is needed at low speed than at high speed None of these A stronger commutating field is needed at low speed than at high speed A weaker commutating field is needed at low speed than at high speed Same commutating field is needed at low speed than at high speed None of these A stronger commutating field is needed at low speed than at high speed A weaker commutating field is needed at low speed than at high speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive motor vibration is caused by Open armature coil Too much brush tension Worn bearings Bent shaft Open armature coil Too much brush tension Worn bearings Bent shaft ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS