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41. "Expanded ACSR" are conductors composed of

A. larger diameter individual strands for a given cross-section of the aluminium strangs

B. larger diameter of a central steel strands for a given overall diameter of the conductor

C. larger diamter of the aluminium strands only for a given overall diameter of the conductor

D. a fillter between the inner steel and the outer aluminium strands to increase the overall diameter of the conductor

Explanation:

42. A conductor is composed of seven identical copper .Iranu, each having a radius r. The self GMD of the conductors will be

A. 2.177 r

B. 2.645 r

C. 2.141 r

D. 1.21 r

Explanation:

43. What is the sag for a span of 400m, if the ultimate tensile strength of conductor is 6000 kgf, and the weight of conductor is 550 kgf/km? Factor of safety is 2.

A. 1.016 m

B. 2.40 m

C. 3.6 m

D. 4.2 m

Explanation:

44. An RLC series. circuit remains predominantly inductive

A. at resonance frequency

B. below resonance frequency

C. above resonance frequency

D. at the lower half power frequency

Explanation:

45. A 100 km long transmission line is loaded at 110 kV.if the loss of line is 5 MW and the load is 150 MVA, the resistance of the line is

A. 8.06 ohms per phase

B. 0.806 ohms per phase

C. 0.0806 ohms per phase

D. 80.6 ohms per phase

Explanation:

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