DC Motors In D.C. shunt motors as load is reduced The speed will reduce The speed will remain almost/constant The speed will increase abruptly The speed will increase in proportion to reduction in load The speed will reduce The speed will remain almost/constant The speed will increase abruptly The speed will increase in proportion to reduction in load ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed in a dc motor is maximum when back emf is equal to _____ the applied voltage. Twice None of the listed here Half One-third Twice None of the listed here Half One-third ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following losses are significantly reduced by laminating the core of a D.C. generator? Copper losses Hysteresis losses Windage losses Eddy current losses Copper losses Hysteresis losses Windage losses Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors Three point starter can be used for Both shunt and compound motor Series motor only Compound motor only Shunt motor only Both shunt and compound motor Series motor only Compound motor only Shunt motor only ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Become zero Increase Decrease Remains same Become zero Increase Decrease Remains same ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is comnected across the AC supply it will Run at lower speed Burn due to heat produced in the field winding by eddy currents Not run Run at normal speed Run at lower speed Burn due to heat produced in the field winding by eddy currents Not run Run at normal speed ANSWER DOWNLOAD EXAMIANS APP
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