DC Motors If a D.C. motor is to be selected for conveyors, which rriotor would be preferred ? Cumulative compound motor Series motor Shunt motor Differentially compound motor Cumulative compound motor Series motor Shunt motor Differentially compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Carbon brushes are preferable to copper brushes because _____ They have longer life They reduce sparking They have lower resistance They reduce armature reaction They have longer life They reduce sparking They have lower resistance They reduce armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Motors The resistance of shunt field winding as compared to series field winding is None of the listed here The same More Less None of the listed here The same More Less 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 If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the 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 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 ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor if the back emf is absent Motor will burn Motor will run at very high speed Motor will not run at all Motor will run at very slow speed Motor will burn Motor will run at very high speed Motor will not run at all Motor will run at very slow speed ANSWER DOWNLOAD EXAMIANS APP
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