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Electrical Cables

Electrical Cables
Low tension cables are generally used up to

1000 V
200 V
400 V
600 V

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Electrical Cables
Dielectric strength of rubber is around

25 kV/mm
15 kV/mm
5 kV/mm
30 kV/mm

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Electrical Cables
Empire tape is

None of the listed here
Varnished cambric
Impregnated paper
Vulcanized rubber

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Electrical Cables
The insulating material should have

All of the listed here
High resistivity
Low permittivity
High dielectric strength

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Electrical Cables
If a power cable and a communication cable are to run parallel the minimum distance between the two, to avoid interference, should be

100 cm
30 cm
20 cm
50 cm

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Electrical Cables
In capacitance grading of cables we use a _________ dielectric.

Hygroscopic
Composite
Porous
Homogeneous

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MORE MCQ ON Electrical Cables

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