Types of Electric Cables
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Questions and Answers

What is a characteristic of the insulation used in weather-proof cables?

  • It is made of copper
  • It is made of cotton or silk
  • It is made of polyvinyl chloride (PVC)
  • It is made of vulcanized rubber (correct)
  • What is the main advantage of flexible cords over other types of wires?

  • They are more resistant to moisture
  • They are less expensive
  • They are more flexible (correct)
  • They are more durable
  • Which type of wire is least used for transmission of electrical energy?

  • Flexible cord
  • Steel wire (correct)
  • Aluminium wire
  • Copper wire
  • What is the primary material used in ACSR wires?

    <p>Aluminium</p> Signup and view all the answers

    What is the main purpose of hook up wires?

    <p>For electronic circuit wiring</p> Signup and view all the answers

    What is a characteristic of copper wires?

    <p>They have high tensile strength</p> Signup and view all the answers

    What is the primary purpose of the cotton tape in a V.I.R cable?

    <p>To provide mechanical protection</p> Signup and view all the answers

    What is the primary advantage of P.V.C insulation over vulcanized rubber insulation?

    <p>It is more resistant to acid and alkali</p> Signup and view all the answers

    Why is tinned copper or aluminium not used in P.V.C cables?

    <p>Because it is not necessary due to the hard P.V.C insulation</p> Signup and view all the answers

    What is the main difference between C.T.S and V.I.R cables?

    <p>The type of protective covering used</p> Signup and view all the answers

    What is the primary limitation of P.V.C cables?

    <p>They are not suitable for high-temperature applications</p> Signup and view all the answers

    What is the primary application of V.I.R cables?

    <p>In casing, capping, conduits, and temporary light wirings</p> Signup and view all the answers

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