DC Motors The torque developed by a dc motor is directly proportional to Armature resistance × applied voltage Armature resistance × armature current None of the listed here Flux per pole × armature current Armature resistance × applied voltage Armature resistance × armature current None of the listed here Flux per pole × armature current ANSWER DOWNLOAD EXAMIANS APP
DC Motors The compensating winding is connected in Parallel with armature Series with armature Series-parallel with armature None of the listed here Parallel with armature Series with armature Series-parallel with armature None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. machines the residual magnetism is of the order of 10 to 15 percent 2 to 3 percent 50 to 75 percent 20 to 25 percent 10 to 15 percent 2 to 3 percent 50 to 75 percent 20 to 25 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors During rheostat braking of dc series motor Motor is reversed in direction None of the listed here Motor is run at reduced speed Motor is run as a generator Motor is reversed in direction None of the listed here Motor is run at reduced speed Motor is run as a generator ANSWER DOWNLOAD EXAMIANS APP
DC Motors In variable speed motor 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 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 ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following application requires high starting torque? Centrifugal pump Lathe machine Locomotive Air blower Centrifugal pump Lathe machine Locomotive Air blower ANSWER DOWNLOAD EXAMIANS APP
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