Electrical Machines Which motors are preferred for refrigeration and air conditioning in smaller units? Reluctance motors. Induction motors. Universal motors. Stepper motors. Reluctance motors. Induction motors. Universal motors. Stepper motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole generator with 16 coil has a two layer lap winding. The pole pitch is 32. 8. 16. 4. 32. 8. 16. 4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field connection of a DC Shunt Motor is changed then it will run in same direction by slowly. it will run in opposite direction. motor will not run. it will run in same direction. it will run in same direction by slowly. it will run in opposite direction. motor will not run. it will run in same direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two of supply terminals to a 3 - Φ induction motor get interchanged during re-connection after normal maintenance. When switched on the supply, the motor will get heated and damaged. not start at all. rotate in the same direction as before maintenance. rotate in direction opposite to that before maintenance. get heated and damaged. not start at all. rotate in the same direction as before maintenance. rotate in direction opposite to that before maintenance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt motor has external resistance Ra and Rf in the armature and field circuits respectively. Armature current at starting can be reduced by keeping Ra maximum and Rf maximum Rf maximum and Ra minimum Ra maximum and Rf minimum Ra minimum and Rf minimum Ra maximum and Rf maximum Rf maximum and Ra minimum Ra maximum and Rf minimum Ra minimum and Rf minimum ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If Pi and Pc represent core and full load copper loss respectively, the maximum KVA delivered to load corresponding to maximum efficiency is equal to rated KVA is √(Pi/Pc) Pi/Pc (Pi/Pc)2 Pc/Pi √(Pi/Pc) Pi/Pc (Pi/Pc)2 Pc/Pi ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS