1.
Dielectric strength of rubber is around

2.
In capacitance grading a homogeneous dielectric is used.

3.
Underground cables are laid at sufficient depth

4.
The insulating material for a cable should have

5.
The bedding on a cable consists of

6.
The insulating material for cables should

7.
In capacitance grading of cables we use a _________ dielectric.

8.
In a cable immediately above metallic sheath ________ is provided.

9.
In the cables, sheaths are used to

10.
The material for armouring on cable is usually

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