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Electrical Cables

Electrical Cables
The minimum dielectric stress in a cable is at

Bedding
Conductor surface
Armour
Lead sheath

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Electrical Cables
The current carrying capacity of cables in D.C. is more than that in A.C. mainly due to

Absence of harmonics
Nonexistence of any stability limit
None of the listed here
Smaller dielectric loss

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Electrical Cables
Copper as conductor for cables is used as

Annealed
Hardened and tempered
Alloy with chromium
Hard drawn

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

Composite
Homogeneous
Porous
Hygroscopic

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Electrical Cables
Which of the following insulation is used in cables?

Paper
Varnished cambric
Rubber
All of the listed here

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Electrical Cables
Cables for 220 kV lines are invariably

Paper insulated
Compressed oil or compressed gas insulated
Mica insulated
Rubber insulated

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