DC Motors Which of the following motors is most suitable for signalling devices and many kinds of timers ? C. shunt motor Induction motor Reluctance motor C. series motor C. shunt motor Induction motor Reluctance motor C. series motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. shunt motors as load is reduced The speed will reduce The speed will increase abruptly The speed will increase in proportion to reduction in load The speed will remain almost/constant The speed will reduce The speed will increase abruptly The speed will increase in proportion to reduction in load The speed will remain almost/constant ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor if the back emf is absent 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 Motor will burn Motor will run at very high speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors By flux control method of speed control of a dc shunt motor, we can obtain speeds. None of the listed here Above the normal speed only Below the normal speed only Above as well as below the normal speed None of the listed here Above the normal speed only Below the normal speed only Above as well as below the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens This will make armature to take heavy current, possibly burning it This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will come to stop Nothing will happen to motor This will make armature to take heavy current, possibly burning it This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will come to stop Nothing will happen to motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Elevators Colliery winders Centrifugal pumps Steel rolling mills Elevators Colliery winders Centrifugal pumps Steel rolling mills ANSWER DOWNLOAD EXAMIANS APP
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