The insulating material for cables should

A. Hessian cloth B. Jute C. Any of the above D. None of the above

A. Low cost B. High dielectric strength C. High mechanical strength D. All of the above

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

A. Yes B. No