Cables MCQs with answers Page - 3

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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Q. In case of three core flexible cable the colour of the neutral is

  • (A) blue
  • (B) black
  • (C) brown
  • (D) none of the above

A

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Q. In single core cables armouring is not done to

  • (A) avoid excessive sheath losses
  • (B) make it flexible
  • (C) either of the above
  • (D) none of the above

A

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Q. In the cables, sheaths are used to

  • (A) prevent the moisture from entering the cable
  • (B) provide enough strength
  • (C) provide proper insulation
  • (D) none of the above

A

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Q. Is a cable is to be designed for use on 1000 kV, which insulation would you prefer?

  • (A) Polyvinyle chloride
  • (B) Vulcanised rubber
  • (C) Impregnated paper
  • (D) Compressed SFe gas

A

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Q. Low tension cables are generally used up to

  • (A) 200 V
  • (B) 500 V
  • (C) 700 V
  • (D) 1000 V

A

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Q. Pressure cables are generally not used beyond

  • (A) 11 kV
  • (B) 33 kV
  • (C) 66 kV
  • (D) 132 kV

A

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Q. PVC stands for

  • (A) polyvinyl chloride
  • (B) post varnish conductor
  • (C) pressed and varnished cloth
  • (D) positive voltage conductor

A

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Q. Solid type cables are considered unreliable beyond 66 kV because

  • (A) insulation may melt due to higher temperature
  • (B) skin effect dominates on the conductor
  • (C) of corona loss between conductor and sheath material
  • (D) there is a danger of breakdown of insulation due to the presence of voids

A

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Q. The advantage of cables over overhead transmission lines is

  • (A) easy maintenance
  • (B) low cost
  • (C) can be used in congested areas
  • (D) can be used in high voltage circuits

A

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Q. The advantage of oil filled cables is

  • (A) more perfect impregnation
  • (B) smaller overall size
  • (C) no ionisation, oxidation and formation of voids
  • (D) all of the above

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