Cables for 220 kV lines are invariably

The bedding on a cable consists of

A. Hessian cloth

B. Jute

C. Any of the above

D. None of the above

The insulating material for a cable should have

A. Low cost

B. High dielectric strength

C. High mechanical strength

D. All of the above

Underground cables are laid at sufficient depth

A. To minimize temperature stresses

B. To avoid being unearthed easily due to removal of soil

C. To minimize the effect of shocks and vibrations due to gassing vehicles, etc.

D. For all of the above reasons

In capacitance grading a homogeneous dielectric is used.

A. Yes

B. No