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ELECTRICAL CABLES

Electrical Cables
The bedding on a cable consists of

Jute
None of the listed here
Hessian cloth
Both Hessian cloth and Jute

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Electrical Cables
Dielectric strength of rubber is around

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

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Electrical Cables
Underground cables are laid at sufficient depth

All of the listed here
To minimize the effect of shocks and vibrations due to gassing vehicles, etc.
To avoid being unearthed easily due to removal of soil
To minimize temperature stresses

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Electrical Cables
The insulating material for a cable should have

High mechanical strength
All of the listed here
High dielectric strength
low cost

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Electrical Cables
In the cables, the location of fault is usually found out by comparing

The resistance of the conductor
The capacitances of insulated conductors
All of the listed here
The inductance of conductors

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