Underground cables are laid at sufficient depth

Q. Underground cables are laid at sufficient depth

A.            to minimise temperature stresses

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

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

D.            for all of the above reasons

Answer: to minimise the effect of shocks and vibrations due to gassing vehicles, etc

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