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Electrical Cables

Electrical Cables
The thickness of metallic shielding on cables is usually

0.04 mm
3 to 5 mm
0.2 to 0.4 mm
40 to 60 mm

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Electrical Cables
The breakdown of insulation of the cable can be avoided economically by the use of

Both Inter-sheaths and Insulating materials with different dielectric constants
None of the listed here
Insulating materials with different dielectric constants
Inter-sheaths

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Electrical Cables
The insulating material should have

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

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Electrical Cables
High tension cables are generally used up to

33 kV
66 kV
11 kV
132 kV

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Electrical Cables
In the cables, sheaths are used to

None of the listed here
Prevent the moisture from entering the cable
Provide proper insulation
Provide enough strength

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Electrical Cables
Dielectric strength of rubber is around

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

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MORE MCQ ON Electrical Cables

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