DC Motors In D.C. shunt motors as load is reduced The speed will increase in proportion to reduction in load The speed will remain almost/constant The speed will reduce The speed will increase abruptly The speed will increase in proportion to reduction in load The speed will remain almost/constant The speed will reduce The speed will increase abruptly ANSWER DOWNLOAD EXAMIANS APP
DC Motors Differentially compound D.C. motors can find applications requiring Variable speed Frequent on-off cycles Low starting torque High starting torque Variable speed Frequent on-off cycles Low starting torque High starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors In variable speed motor Same commutating field is needed at low speed than at high speed 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 None of these Same commutating field is needed at low speed than at high speed 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 None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor, the brushes are shifted from the mechanical neutral plane in a direction opposite to the rotation to _____ Reduce sparking Increase speed Produce flat characteristics Decrease speed Reduce sparking Increase speed Produce flat characteristics Decrease speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors Carbon brushes are preferable to copper brushes because _____ They reduce sparking They reduce armature reaction They have lower resistance They have longer life They reduce sparking They reduce armature reaction They have lower resistance They have longer life ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc shunt motors are used for driving Trains Hoist Machine tools Cranes Trains Hoist Machine tools Cranes ANSWER DOWNLOAD EXAMIANS APP
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