DC Motors If a dc motor is to be selected for conveyors, which motor would be preferred? Differentially compound motor Cummulative compound motor Series motor Shunt motor Differentially compound motor Cummulative compound motor Series motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Armature winding Commutator Slip rings Field winding Armature winding Commutator Slip rings Field winding ANSWER DOWNLOAD EXAMIANS APP
DC Motors For a D.C. shunt motor if the excitation is changed Torque, power and speed, all will change Torque and power both will change Torque will remain constant Torque will change but power will remain constant Torque, power and speed, all will change Torque and power both will change Torque will remain constant Torque will change but power will remain constant ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor is preferred for operation in highly explosive atmosphere? Air motor Series motor Shunt motor Battery operated motor Air motor Series motor Shunt motor Battery operated motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The rheostatic speed control method is very Suitable for getting speeds above the normal Efficient Unsuitable for rapidly changing loads Economical Suitable for getting speeds above the normal Efficient Unsuitable for rapidly changing loads Economical ANSWER DOWNLOAD EXAMIANS APP
DC Motors In variable speed motor None of these A stronger commutating field is needed at low speed than at high speed Same commutating field is needed at low speed than at high speed A weaker 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 Same 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
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