Cables MCQs | Page - 4

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. The insulation of the cable decreases with
  • (A) the increase in length of the insulation
  • (B) the decrease in the length of the insulation
  • (C) either (a) or (b)
  • (D) none of the above
💬 Discuss
✅ Correct Answer: (A) the increase in length of the insulation
📊 Cables
Q. The insulating material should have
  • (A) low permittivity
  • (B) high resistivity
  • (C) high dielectric strength
  • (D) all of the above
💬 Discuss
✅ Correct Answer: (D) all of the above
📊 Cables
Q. The insulating material for cables should
  • (A) be acid proof
  • (B) be non-inflammable
  • (C) be non-hygroscopic
  • (D) have all above properties
💬 Discuss
✅ Correct Answer: (D) have all above properties
📊 Cables
Q. The insulating material for a cable should have
  • (A) low cost
  • (B) high dielectric strength
  • (C) high mechanical strength
  • (D) all of the above
💬 Discuss
✅ Correct Answer: (D) all of the above
📊 Cables
Q. The electrostatic stress in underground cables is
  • (A) same at the conductor and the sheath
  • (B) minimum at the conductor and maximum at the sheath
  • (C) maximum at the conductor and minimum at the sheath
  • (D) zero at the conductor as well as on the sheath
💬 Discuss
✅ Correct Answer: (C) maximum at the conductor and minimum at the sheath
📊 Cables
Q. The disadvantage with paper as insulating material is
  • (A) it is hygroscopic
  • (B) it has high capacitance
  • (C) it is an organic material
  • (D) none of the above
💬 Discuss
✅ Correct Answer: (A) it is hygroscopic
📊 Cables
Q. The current carrying capacity of cables in D.C. is more thanthat in A.C. mainly due to
  • (A) absence of harmonics
  • (B) non-existence of any stability limit
  • (C) smaller dielectric loss
  • (D) absence of ripples
💬 Discuss
✅ Correct Answer: (C) smaller dielectric loss
📊 Cables
Q. The breakdown voltage of a cable depends on
  • (A) presence of moisture
  • (B) working temperature
  • (C) time of application of the voltage
  • (D) all of the above
💬 Discuss
✅ Correct Answer: (D) all of the above
📊 Cables
Q. The breakdown of insulation of the cable can be avoided economically by the use of
  • (A) inter-sheaths
  • (B) insulating materials with different dielectric constants
  • (C) both (a) and (b)
  • (D) none of the above
💬 Discuss
✅ Correct Answer: (C) both (a) and (b)
📊 Cables
Q. The bedding on a cable consists of
  • (A) hessian cloth
  • (B) jute
  • (C) any of the above
  • (D) none of the above
💬 Discuss
✅ Correct Answer: (C) any of the above

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