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Electrical Cables

Electrical Cables
In a cable the voltage stress is maximum at

Sheath
Insulator
Core of the conductor
Surface of the conductor

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Electrical Cables
The inter sheaths in the cables are used to

Minimize the stress
None of the listed here
Avoid the requirement of good insulation
Provide proper stress distribution

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Electrical Cables
Copper as conductor for cables is used as

Hardened and tempered
Annealed
Alloy with chromium
Hard drawn

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Electrical Cables
Dielectric strength of rubber is around

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

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Electrical Cables
Conduit pipes are normally used to protect ________ cables.

Unsheathed cables
PVC sheathed cables
Armoured
All of the listed here

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

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

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