DC Motors Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors? Wide speed range High starting torque Low cost Stability Wide speed range High starting torque Low cost Stability ANSWER DOWNLOAD EXAMIANS APP
DC Motors Armature reaction in dc motor is increased When the armature current increases When the armature current decreases By interpoles When the field current increases When the armature current increases When the armature current decreases By interpoles When the field current increases ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which D.C. motor is generally preferred for cranes and hoists? Series motor Shunt motor Cumulatively compounded motor Differentially compounded motor Series motor Shunt motor Cumulatively compounded motor Differentially compounded motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Where D.C. motor of H.P. 12 or more requires frequent starting, stopping, reversing and speed control Drum type controller is used Three point starter is used Four point starter is used All above can be used Drum type controller is used Three point starter is used Four point starter is used All above can be used ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor is Directly proportional to flux per pole inversely proportional to flux per pole inversely proportional to applied voltage None of the listed here Directly proportional to flux per pole inversely proportional to flux per pole inversely proportional to applied voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc motor is still used in industrial applications because it Is cheap None of the listed here Provides fine speed control Is simple in construction Is cheap None of the listed here Provides fine speed control Is simple in construction ANSWER DOWNLOAD EXAMIANS APP
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