A) Positive B) Zero C) Low D) High Ans : (B)
A) armature leakage B) armature reactance C) armature resistance D) none of the above. Ans : (C)
A) decrease it B) reverse it C) increase it D) none of the above. Ans : (A)
A) PN/60 B) PN/100 C) PN/180 D) PN/120 Ans : (D)
A) to mechanically balance the rotor B) to amplify voltage C) to enhance flux density D) to reduce eddy current losses. Ans : (A)
A) 38.4 V B) 31.6 V C) 22.7 V D) 11.37 V. Ans : (D)
A) Field copper loss B) Armature copper loss C) Winding loss D) All of the above. Ans : (B)
A) Mechanical losses B) Magnetic losses C) Field copper losses D) Armature copper loss. Ans : (A)
A) Field copper loss B) Armature copper loss C) Eddy current loss D) Hysteresis loss. Ans : (B)
A) Will tend to decrease slightly B) Will remain unaltered C) Will be halved D) Will be doubled. Ans : (D)