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Geological Engineering · Q33

Geophysical Methods in Engineering

Engineering and GATE · Geological Engineering · question 33

Q33

What does a low resistivity value usually indicate?

A.
Dry sand
B.
Granite
C.
Clay or saturated soil
Answer
D.
Igneous rock

Answer: Option C

Solution

Answer: Option C
Solution:
Clay and saturated soils conduct electricity well, thus showing low resistivity.High resistivity is typical of dry, dense rocks.