Cables MCQs | Page - 2

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 cables, the location of fault is usually found out by comparing
  • (A) the resistance of the conductor
  • (B) the inductance of conductors
  • (C) the capacitances of insulated conductors
  • (D) all above parameters
💬 Discuss
✅ Correct Answer: (C) the capacitances of insulated conductors
📊 Cables
Q. High tension cables are generally used up to
  • (A) 11 kV
  • (B) 33 kV
  • (C) 66 kV
  • (D) 132 kV
💬 Discuss
✅ Correct Answer: (A) 11 kV
📊 Cables
Q. If a cable of homogeneous insulation has a maximum stress of 10 kV/mm, then the dielectric strength of insulation should be
  • (A) 5 kV/mm
  • (B) 10 kV/mm
  • (C) 15 kV/mm
  • (D) 30 kV/mm
💬 Discuss
✅ Correct Answer: (B) 10 kV/mm
📊 Cables
Q. If a power cable and a communication cable are to run parallel the minimum distance between the two, to avoid interference, should be
  • (A) 2 cm
  • (B) 10 cm
  • (C) 50 cm
  • (D) 400 cm
💬 Discuss
✅ Correct Answer: (C) 50 cm
📊 Cables
Q. If the length of a cable is doubled, its capacitance
  • (A) becomes one-fourth
  • (B) becomes one-half
  • (C) becomes double
  • (D) remains unchanged
💬 Discuss
✅ Correct Answer: (C) becomes double
📊 Cables
Q. In a cable immediately above metallic sheath _________ is provided.
  • (A) earthing connection
  • (B) bedding
  • (C) armouring
  • (D) none of the above
💬 Discuss
✅ Correct Answer: (B) bedding
📊 Cables
Q. In a cable the voltage stress is maximum at
  • (A) sheath
  • (B) insulator
  • (C) surface of the conductor
  • (D) core of the conductor
💬 Discuss
✅ Correct Answer: (D) core of the conductor
📊 Cables
Q. In a cable, the maximum stress under operating conditions is at
  • (A) insulation layer
  • (B) sheath
  • (C) armour
  • (D) conductor surface
💬 Discuss
✅ Correct Answer: (D) conductor surface
📊 Cables
Q. In cables the charging current
  • (A) lags the voltage by 90°
  • (B) leads the voltage by 90°
  • (C) lags the voltage by 180°
  • (D) leads the voltage by 180°
💬 Discuss
✅ Correct Answer: (B) leads the voltage by 90°
📊 Cables
Q. In capacitance grading of cables we use a _________ dielectric.
  • (A) composite
  • (B) porous
  • (C) homogeneous
  • (D) hygroscopic
💬 Discuss
✅ Correct Answer: (A) composite

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