A) there will be no current in no phase B) there will be no current in two phases C) two phases will be seriously overloaded and there will be no current in the third phase D) one phase will be seriously overloaded and two others will be slightly overloaded. Ans : (D)
A) 40 N-m B) 60 N-m C) 90 N-m D) 120 N-m. Ans : (A)
A) 10 percent B) 4 percent C) 1 percent D) 0.1 percent. Ans : (B)
A) 3 B) 6 C) 9 D) No slip rings provided. Ans : (A)
A) Same as full load torque B) 1.5 times the full load torque C) 2 to 3 times the full load torque D) 4 to 5 times the full load torque. Ans : (B)
A) 1 B) zero C) n x slip D) slip/n. Ans : (A)
A) increased by 10% B) increased by 20% C) reduced by 20% D) unchanged. Ans : (D)
A) run at higher loads B) run at lower loads C) run at lower speeds D) run at higher speeds. Ans : (B)
A) Starting toque B) Maximum running torque C) Starting current D) All of the above. Ans : (D)
A) Full load current B) Starting current C) Maximum running torque D) All of the above. Ans : (D)