A) runs with excessive sound B) runs with excessive vibrations C) runs at slow speeds D) refuses to start at no load. Ans : (D)
A) 100 A B) 50 A C) 15 A D) 10 A. Ans : (C)
A) 60 B) 0.20 C) 0.10 D) 0.05. Ans : (B)
A) will not run B) will run with lot of noise and vibrations C) will burn D) will attain infinitely high speed. Ans : (A)
A) adding external resistance and inductance to the rotor B) adding external resistance to the rotor C) adding external inductance to the rotor D) adding external capacitance to the motor. Ans : (B)
A) 0.5 A B) 2 A C) 5 A D) 10 A. Ans : (C)
A) motor will start hunting B) motor will over heat C) motor will be noisy D) motor will not start. Ans : (D)
A) 5% B) 10% C) 20% D) 40%. Ans : (C)
A) 0.8 lagging power factor B) 0.8 leading power factor C) unity power factor D) 0.6 lagging power factor. Ans: (A)
A) 1 : 8 B) 1 : 10 C) 2 : 19 D) 4 : 91. Ans : (D)