Paper Insulated Cable Multiple Choice Questions and Answers


16.  Paper used as an insulating material is usually treated with only compound because it


   A.Is hygroscopic

   B.Gets electrostatically charged at high-voltage

   C.Is porous

   D.All of the above


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B.Gets electrostatically charged at high-voltage

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17. Paper is an insulating material has the main drawback that it


   A.Is hygroscopic

   B.Has Paul dielectric strength

   C.Has low installation resistivity

   D.Has high capacitance


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A. Is hygroscopic

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18.  In paper insulated cables the contactor X section is usually limited to


   A.50 mm2

   B.250 mm2

   C.600 mm2

   D.1200 mm2


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C.600 mm2

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19.  The dielectric strength of impregnated paper is about


   A.30 KV/mm

   B.20 KV/mm

   C.15 kV/mm

   D.Any of the above

   E.None of the above


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A.30 KV/mm

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20.  Empire tape is


   A. Varnished Cambric

   B. Impregnated paper

   C. vulcanised rubber

   D. Enamel insulation


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A.Varnished Cambric

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