Electrical Machines The function of field regulator in a DC compound motor is to none of above. limit the armature current. vary the armature resistance. control field current. none of above. limit the armature current. vary the armature resistance. control field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Total core loss is also called as -------------? Magnetic loss Copper loss Hysteresis loss Eddy current loss Magnetic loss Copper loss Hysteresis loss Eddy current loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The wound rotor type IM is used for____________ speed operation. minimum. constant. variable. maximum. minimum. constant. variable. maximum. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which one of the following statement is correct ? In an induction motor if the air gap is increased then its speed will increase its efficiency will improve its power factor will reduce its speed will reduce its speed will increase its efficiency will improve its power factor will reduce its speed will reduce ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC shunt generator having a wave winding supplies 50 lamps, each of 60 W at 120 V. The armature and field resistance are 0.2 Ω and 60 Ω respectively. The current in each armature conductor is 23 A. 13.5 A. 11.5 A. 27 A. 23 A. 13.5 A. 11.5 A. 27 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements: To control the speed of a dc shunt motor above the base speed over a reasonably wide range, the motor must 1. have compensating winding 2. have interpole winding 3. be started using a 3-point starter 4. be started using a 4-point starter Of these statements 2 and 4 are correct 1 and 3 are correct 1, 2 and 3 are correct 1, 2 and 4 are correct 2 and 4 are correct 1 and 3 are correct 1, 2 and 3 are correct 1, 2 and 4 are correct ANSWER DOWNLOAD EXAMIANS APP
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