Electrical Machines Width of a carbon brush should be equal to the width of the 2 to 3 commutator segment. the width more than 3 commutator segment. the width of the 1 to 2 commutator segment. less than the width of commutator segment. the width of the 2 to 3 commutator segment. the width more than 3 commutator segment. the width of the 1 to 2 commutator segment. less than the width of commutator segment. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are effects of armature reaction? increases the design cost increase the maintenance and repair increase the iron loss All of these increases the design cost increase the maintenance and repair increase the iron loss All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator core of a 3 - Φ induction motor is laminated in order to reduce the both of the above. eddy current loss. weight of the stator. hysteresis loss. both of the above. eddy current loss. weight of the stator. hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor is used in paper machines? DC series motor. DC Shunt motor. Separately excited DC motor. DC compound motor. DC series motor. DC Shunt motor. Separately excited DC motor. DC compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has negative speed regulation? Shunt motors. Series motors. Both B and C. Differential compound motors. Shunt motors. Series motors. Both B and C. Differential compound motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor electromotive force of the IM is observed to make 100 complete alterations per minute, calculated slip 3.33 %. None of these 3 %. 0 .001 %. 3.33 %. None of these 3 %. 0 .001 %. ANSWER DOWNLOAD EXAMIANS APP