A) Lower than B) Equal to C) Higher than D) Any of these. Ans : (A)
A) 25 kVA B) 20 kVA C) 15 kVA D) 10 kVA. Ans : (A)
A) dielectric strength of oil B) temperature rise C) copper loss D) voltage ratio. Ans : (B)
A) 90° B) 120° C) 180° D) 360° Ans : (C)
A) Eddy current loss B) Thermal loss C) Hysteresis loss D) Copper loss. Ans : (A)
A) 11 kV B) 66 kV C) 132 kV D) 220 kV. Ans : (A)
A) high voltage surge B) core saturation and high voltage induction C) insulation break-down D) break in primary winding. Ans : (B)
A) lagging B) leading C) 0.5 D) unity. Ans : (B)
A) Secondary voltage B) Magnetic interference with protective relays C) Core loss D) Copper loss. Ans : (A)
A) load B) voltage C) magnetomotive force D) all of the above. Ans : (A)