Electrical Machines A DC generator without commutator is a DC motor induction motor AC generator DC generator DC motor induction motor AC generator DC generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the same power output rating and full load speed, the motor will have poorest starting torque, is Differential compound. Cummulative compound. Series. Shunt. Differential compound. Cummulative compound. Series. Shunt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC Shunt Motor having shunt field resistance of 250 Ω and armature resistance of 0.5 Ω is connected to 250 V supply and load current of 21 A. What is the back emf generated ? 230 V. 210 V 240 V. 150 V. 230 V. 210 V 240 V. 150 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. directly. none of these. inversely. has no relation. directly. none of these. inversely. has no relation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ induction motor draws an current of 50 A from mains when starts by direct switching. If an auto transformer with 60 % tapping is used for starting the current drawn from the mains will be 50. 36. 18. 80. 50. 36. 18. 80. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor has which of the following characteristics? Can be started easily without load. Has its field winding consinting of thick wire and less no of turns. Has a poor torque. Has a almost constant speed. Can be started easily without load. Has its field winding consinting of thick wire and less no of turns. Has a poor torque. Has a almost constant speed. ANSWER DOWNLOAD EXAMIANS APP
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