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Electrical Cables

Electrical Cables
In a cable the voltage stress is maximum at

Surface of the conductor
Core of the conductor
Insulator
Sheath

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Electrical Cables
Copper as conductor for cables is used as

Annealed
Hardened and tempered
Hard drawn
Alloy with chromium

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Electrical Cables
The electrostatic stress in underground cables is

Minimum at the conductor and maximum at the sheath
Zero at the conductor as well as on the sheath
Maximum at the conductor and minimum at the sheath
Same at the conductor and the sheath

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Electrical Cables
In the cables, sheaths are used to

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

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Electrical Cables
A cable carrying alternating current has

Hysteresis, leakage and copper losses only
Hysteresis, leakage, copper and friction losses
Hysteresis and leakage losses only
Hysteresis losses only

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Electrical Cables
In a cable immediately above metallic sheath ________ is provided.

Bedding
Armouring
Earthing connection
None of the listed here

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