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Electrical Cables

Electrical Cables
In case of three core flexible cable the color of the neutral is

Blue
Brown
Black
Red

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Electrical Cables
The advantage of cables over overhead transmission lines is

Can be used in high voltage circuits
Low cost
Easy maintenance
Can be used in congested areas

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Electrical Cables
The relative permittivity of rubber is

Between 8 and 9
Between 2 and 3
Between 5 and 7
None of the listed here

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Electrical Cables
If the length of a cable is doubled, its capacitance

Becomes one-fourth
None of the listed here
Becomes one-half
Becomes double

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Electrical Cables
The insulation of the cable decreases with

The increase in length of the insulation
None of the listed here
The decrease in the length of the insulation
Both of the listed here

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Electrical Cables
In single core cables armouring is not done to

Either of the listed here
None of the listed here
Make it flexible
Avoid excessive sheath losses

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MORE MCQ ON Electrical Cables

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