Civil Engineering MCQJE Level Civil Engineering
The SPT (Standard Penetration Test) N-value for a dense sand deposit is typically in the range:
Soil MechanicsSoil MechanicsMEDIUM
Choose the correct answer
A
N < 4
B
N 10–30
C
N 30–50
D
N > 80
Correct Answer
C. N 30–50
Why is this the answer?
IS 2131 / Terzaghi & Peck correlation: N < 4: very loose; N 4–10: loose; N 10–30: medium dense; N 30–50: dense; N > 50: very dense. N-value used to estimate bearing capacity, settlement, and liquefaction potential. Corrections applied: overburden correction (N1,60), rod length, sampler correction.
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