Cables MCQs with answers Page - 1

Here, you will find a collection of MCQ questions on Cables. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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A

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Q. Empire tape is

  • (A) varnished cambric
  • (B) vulcanised rubber
  • (C) impregnated paper
  • (D) none of the above

A

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Q. Dielectric strength of rubber is around

  • (A) 5 kV/mm
  • (B) 15 kV/mm
  • (C) 30 kV/mm
  • (D) 200 kV/mm

A

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Q. Copper as conductor for cables is used as

  • (A) annealed
  • (B) hardened and tempered
  • (C) hard drawn
  • (D) alloy with chromium

A

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Q. Conduit pipes are normally used to protect _________ cables.

  • (A) unsheathed cables
  • (B) armoured
  • (C) PVC sheathed cables
  • (D) all of the above

A

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Q. Capacitance grading of cable implies

  • (A) use of dielectrics of different permeabilities
  • (B) grading according to capacitance of cables per km length
  • (C) cables using single dielectric in different concentrations
  • (D) capacitance required to be introduced at different lengths to counter the effect of inductance

A

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Q. Cables, generally used beyond 66 kV are

  • (A) oil filled
  • (B) S.L. type
  • (C) belted
  • (D) armoured

A

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Q. Cables for 220 kV lines are invariably

  • (A) mica insulated
  • (B) paper insulated
  • (C) compressed oil or compressed gas insulated
  • (D) rubber insulated

A

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Q. Cables are used for 132 kV lines.

  • (A) High tension
  • (B) Super tension
  • (C) Extra high tension
  • (D) Extra super voltage

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Q. A certain cable has an insulation of relative permittivity 4. If the insulation is replaced by one of relative permittivity 2, the capacitance of the cable will become

  • (A) one half
  • (B) double
  • (C) four times
  • (D) none of the above

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Q. A cable carrying alternating current has

  • (A) hysteresis losses only
  • (B) hysteresis and leakage losses only
  • (C) hysteresis, leakage and copper losses only
  • (D) hysteresis, leakage, copper and friction losses

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