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Direct Shear Test

Which of the ...

Question

Which of the following statement(s) is / are incorrect regarding 'Direct shear test'?
1. The sample fails along the weakest plane
2. Test is conducted in a controlled drainage conditions
3. The test is quick, inexpensive and suitable for sands

A

1 and 3

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B

3 only

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C

2 only

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D

1 and 2

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Solution

The correct option is D 1 and 2

In direct shear test, the failure plane is horizontal which may not be the weakest plane.

Drainage conditions can't be controlled in direct shear test,

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Similar questions

Q. Consider the following features of direct shear test:
1. Failure takes place on the predetermined plane.
2. It is a quick test.
3. Drainage conditions cannot be changed.
4. Failure of the sample is progressive.
Which of these are the disadvantages of direct shear test?

Q. Consider the following statements:
1. The water content of a soil remains unchanged during the entire duration of a 'quick' test.
2. Effective stress cum shear parameters of clay can be obtained from drained triaxial shear test.
3. Strain-controlled shear test is a good option since this test procedure maintains better control on the rate of loading than other tests.
Which of the above statements is/are correct?

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\frac{σ_{1} - σ_{3}}{2} t o

\frac{σ_{1} + σ 3}{2}

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0.6 k g / c m^{2}

1 k g / c m^{2}

respectively. The angle of internal friction of the sand will be nearly.

Q. Which one of the following is the reason for the likelihood of erroneous results of a Direct Shear Test on a saturated clay sample?

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