Test: Soil Mechanics - 1


25 Questions MCQ Test Civil Engineering SSC JE (Technical) | Test: Soil Mechanics - 1


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QUESTION: 1

Which of the following types of soil is transported by gravitational forces?

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QUESTION: 2

Water content of soil can

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QUESTION: 3

Which of the following types of soil is transported by gravitational forces?

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QUESTION: 4

A fully saturated soil is said to be

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QUESTION: 5

Total number of stress components at a point within a soil mass loaded at its boundary is

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Correct Answer :- c

Explanation : The degree of saturation value is in between zero to 100 percent. If the soil is completely dry, then the degree of saturation is equal to zero percent.

QUESTION: 6

The submerged density of soil in terms of unit weight of watergw, specific gravity G and Voids
ratio e is given by the expression

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QUESTION: 7

A soil has a bulk density of 22 kN/m3 and water content 10%. The dry density of soil is

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QUESTION: 8

If the voids of a soil mass are full of air only, the soil is termed as

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QUESTION: 9

Valid range for n, the percentage voids, is

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QUESTION: 10

Select the correct statement.

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QUESTION: 11

Voids ratio of a soil mass can

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QUESTION: 12

If the volume of voids is equal to the volume of solids in a soil mass, then the values of porosity and voids ratio respectively are

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QUESTION: 13

When the degree of saturation is zero, the soil mass under consideration represents

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QUESTION: 14

In a liquid limit test, the moisture content at 10 blows was 70% and that at 100 blows was 20%. The liquid limit of the soil, is

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The liquid limit of the soil is 65 %

  • Liquid limit is define as water content at which the soil possess an arbitrarily fixed small amount of shear strength.
  • The result of test are represented in form of curve known as flow curve from which water content corresponding to 25 no. of blows is interpolated and is called as liquid limit.
  • Graph is shown in the attached figure.

Let N be the number of blows and w be the water content at N blows.

Liquid limit = w × (N/25)⁰°¹²¹

For 10 number of blows = w (l) = 70 (10/25)⁰°¹²¹ = 89.55 %

For 100 number of blows  = 20 ( 100/25)⁰°¹²¹ = 23.65 %

So liquid limit is = 89.55 % - 23.65 % ≈ 65 %

QUESTION: 15

If the degree of saturated of a partially saturated soil is 60% then air content of the soil is

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QUESTION: 16

If the water content of a fully, saturated soil mass is 100%, then the voids ratio of the sample is

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QUESTION: 17

The ratio of the volume of voids to the volume of soil solids in a given soil mass, is known

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QUESTION: 18

Relative density of a compacted dense sand is approximately equal to

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QUESTION: 19

If the sand in - situ is in its densest state, then the relative density of sand is

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QUESTION: 20

Which of the following methods is most accurate for the determination of the water content of soil?

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QUESTION: 21

For proper field control which of the following methods is best suited for quick determination of water content of a soil mass?

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QUESTION: 22

A pycnometer is used to determine

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QUESTION: 23

Stoke’s law is valid only if the size of particle is

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QUESTION: 24

In hydrometer analysis for a soil mass

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QUESTION: 25

The hydrometer method of sedimentation analysis differs from the pipette analysis mainly in

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