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Foundation Engineering

Standard Penetration Test

On which of t...

Question

On which of the following soils is the standard penetration test useful?
1. Cohesionless soils
2. Medium clays
3. Gravelly soils
4. Very stiff clays
Select the correct answer using the codes given below:

A

1 only

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B

1 and 3

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C

1 and 2

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D

3 and 4

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Solution

The correct option is A 1 only
Vane shear test is more useful for clays.

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Similar questions

Q. Consider the following statements:
1. Standard penetration test is commonly used for cohesionless soils.
2. Standard penetration test results in respect of a cohesionless soil are correlated to its density index and friction angle.
3. Use of N-value not corrected for overburden pressure leads to highly conservative design of footings at shallow depths.
Which of these statements are correct?

Q. Match List-I with List-II and select the correct answer using the code given below the lists:
List-I
A. Geophysical methods
B. SPT
C. DCPT
D. Piston-type sampler
List-II
1. Primarily for cohesive soils
2. Clays and silts
3. Reconnaissance covering large area and large depth
4. Suitable for sandy soils

Q. Consider the following statements:
1. Dynamic cone penetration test for site investigation is based on the principle that elastic shock waves travel in different materials at different velocities.
2. Electrical resistivity method of subsurface investigation is capable of detecting only the strata having different electrical resistivity.
3. In-situ vane shear test is useful, for determining the shear strength of very soft soil and sensitive clays and is unsuitable for sandy soil.
Which of these statements is/are correct ?

Q. Consider the following statements:
1. The static cone penetration test is unsuitable for layered deposits of sands, silts and clays.
2. The results of groundwater investigation are recorded as water-table contours over the site.
3. Closed piezometers are used to measure pore water pressure in soils having low permeability.
Which of the above statements are correct?

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