DC Motors If a dc motor is to be selected for conveyors, which motor would be preferred? Differentially compound motor Cummulative compound motor Shunt motor Series motor Differentially compound motor Cummulative compound motor Shunt motor Series 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 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 Drum type controller is used Three point starter is used ANSWER DOWNLOAD EXAMIANS APP
DC Motors In case the conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be 1 Around 90% Less than 50% Anywhere between 75% and 90% 1 Around 90% Less than 50% Anywhere between 75% and 90% ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating winding is basically used in a dc machine To improve commutation To control the speed of machine None of the listed here To reduce armature reaction To improve commutation To control the speed of machine None of the listed here To reduce armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc compound machine, Both play equally dominant role Shunt field winding plays dominant role Series field winding plays dominant role Either can play dominant role Both play equally dominant role Shunt field winding plays dominant role Series field winding plays dominant role Either can play dominant role ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Thyristor Thyratron Transistor Thermistor Thyristor Thyratron Transistor Thermistor ANSWER DOWNLOAD EXAMIANS APP
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