To improve earth resistance for protection which of the following meth – McqOptions

MCQOPTIONS

1.	To improve earth resistance for protection which of the following methods is/are used?(i) Use longer ground rods(ii) chemically treat the soil(iii) use multiple ground rods
A.	(i) and (ii)
B.	(ii) and (iiI)
C.	(ii) only
D.	(i), (ii) and (iii)
Answer» E.

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