Which of the following insulation is used in cables?
READ MORE +Electrical Cables MCQs
Which of the following protects a cable against mechanical injury?
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The material for armouring on cable is usually
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Cables, generally used beyond 66 kV are
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A certain cable has an insulation of relative permittivity 4. If the insulation is replaced by one of relative permittivity 2, the capacitance of the cable will become
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In the cables, sheaths are used to
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In a cable the voltage stress is maximum at
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The thickness of metallic shielding on cables is usually
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Underground cables are laid at sufficient depth
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If a power cable and a communication cable are to run parallel the minimum distance between the two, to avoid interference should be
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The breakdown voltage of a cable depends on
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The disadvantage with paper as insulating material is
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