Cables MCQs | Page - 3

Dear candidates you will find MCQ questions of Cables here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

📊 Cables
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
💬 Discuss
✅ Correct Answer: (A) blue
📊 Cables
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
💬 Discuss
✅ Correct Answer: (A) avoid excessive sheath losses
📊 Cables
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
💬 Discuss
✅ Correct Answer: (A) prevent the moisture from entering the cable
📊 Cables
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
💬 Discuss
✅ Correct Answer: (D) Compressed SFe gas
📊 Cables
Q. Low tension cables are generally used up to
  • (A) 200 V
  • (B) 500 V
  • (C) 700 V
  • (D) 1000 V
💬 Discuss
✅ Correct Answer: (D) 1000 V
📊 Cables
Q. Pressure cables are generally not used beyond
  • (A) 11 kV
  • (B) 33 kV
  • (C) 66 kV
  • (D) 132 kV
💬 Discuss
✅ Correct Answer: (C) 66 kV
📊 Cables
Q. PVC stands for
  • (A) polyvinyl chloride
  • (B) post varnish conductor
  • (C) pressed and varnished cloth
  • (D) positive voltage conductor
💬 Discuss
✅ Correct Answer: (A) polyvinyl chloride
📊 Cables
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
💬 Discuss
✅ Correct Answer: (D) there is a danger of breakdown of insulation due to the presence of voids
📊 Cables
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
💬 Discuss
✅ Correct Answer: (C) can be used in congested areas
📊 Cables
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
💬 Discuss
✅ Correct Answer: (D) all of the above

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