DC Motors Motor starter are essential for Accelerating the motor Avoiding excessive starting current Starting the motor Preventing fuse blowing Accelerating the motor Avoiding excessive starting current Starting the motor Preventing fuse blowing ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating winding is basically used in a dc machine To improve commutation None of the listed here To reduce armature reaction To control the speed of machine To improve commutation None of the listed here To reduce armature reaction To control the speed of machine ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc series motors are used in those applications where _____ is required. High starting torque Constant speed Low no load speed None of the listed here High starting torque Constant speed Low no load speed None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor constant torque is produced due to Pole shoes End plates Rotor laminations Commutator Pole shoes End plates Rotor laminations Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors Where D.C. motor of H.P. 12 or more requires frequent starting, stopping, reversing and speed control 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 Drum type controller is used Three point starter is used Four point starter is used ANSWER DOWNLOAD EXAMIANS APP
DC Motors If conditions for maximum power for a dc motor are established, the efficiency of the motor will be 100 % Less than 50% 60 to 70 % 80 to 90 % 100 % Less than 50% 60 to 70 % 80 to 90 % ANSWER DOWNLOAD EXAMIANS APP
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