DC Motors If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor Of higher H.P. should be selected Can be used for 50°C ambient temperature also Is to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor Of lower H.P. should be selected Of higher H.P. should be selected Can be used for 50°C ambient temperature also Is to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor Of lower H.P. should be selected ANSWER DOWNLOAD EXAMIANS APP
DC Motors The value of back emf in dc motor is maximum at Full load No load Half full load None of the listed here Full load No load Half full load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor can be controlled by changing All of the listed here Aplied voltage Is flux Armature circuit resistance All of the listed here Aplied voltage Is flux Armature circuit resistance ANSWER DOWNLOAD EXAMIANS APP
DC Motors A three point starter is considered suitable for Shunt, compound and series motors Shunt as well as compound motors All D.C. motors Shunt motors Shunt, compound and series motors Shunt as well as compound motors All D.C. motors Shunt motors ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor has the poorest speed regulation? Cummulative compound motor Shunt motor Differentially compound motor Series motor Cummulative compound motor Shunt motor Differentially compound motor Series motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The greatest percentage of power loss in a dc motor is due to Windage loss Copper loss Friction loss Core loss Windage loss Copper loss Friction loss Core loss ANSWER DOWNLOAD EXAMIANS APP
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