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Electrical Cables

Electrical Cables
The minimum dielectric stress in a cable is at

Conductor surface
Bedding
Lead sheath
Armour

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

Armoured
PVC sheathed cables
All of the listed here
Unsheathed cables

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Electrical Cables
The advantage of oil filled cables is

Smaller overall size
No ionization, oxidation and formation of voids
More perfect impregnation
All of the listed here

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

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

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Electrical Cables
PVC stands for

Positive voltage conductor
Polyvinyl chloride
Pressed and varnished cloth
Post varnish conductor

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

Homogeneous
Porous
Composite
Hygroscopic

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