A) Vector difference B) Vector sum C) Arithmetic difference D) Arithmetic sum. Ans : (A)
A) remain unchanged B) becomes increasing lagging C) becomes increasing leading D) none of the above. Ans : (B)
A) supply voltage only B) supply frequency only C) supply voltage and frequency both D) none of the above. Ans : (C)
A) no load B) half full load C) full load D) none of the above. Ans : (A)
A) from 1800 rpm to 3600 rpm B) 150 rpm to 1800 rpm C) 3600 rpm to 6000 rpm D) none of the above. Ans : (B)
A) salient pole type B) non salient pole type C) identical to that of dc motor D) none of the above. Ans : (A)
A) Magnetizing B) Cross magnetizing C) Demagnetising D) None of the above. Ans : (C)
A) will lead B) will lag C) will become zero D) none of the above. Ans : (A)
A) 16 B) 30 C) 36 D) none of the above. Ans : (B)
A) 1 % B) 2% C) 5% D) zero. Ans : (D)