Q62
What does the term "undisturbed sample" mean in geotechnical investigation?
A.
Sample taken using power auger
B.
Sample removed from surface layer
C.
Sample retaining in-situ structure and moisture
AnswerD.
Sample dried before testing
Answer: Option C
Solution
Answer: Option C
Solution:
An undisturbed sample maintains the natural structure and water content of the soil, crucial for laboratory analysis of strength, permeability, and compressibility.