Soil Mechanics and Foundation Engineering Quiz | Soil Mechanics and Foundation Engineering Multiple Choice Questions and Answers

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Questions
1 Which of the following methods is most accurate for the determination of the water content of soil ?
A oven drying method
B sand bath method
C calcium carbide method
D pycnometer method

Answer: oven drying method
2 If the sand in-situ is in its densest state, then the relative density of sand is
A zero
B 1
C between 0 and 1
D greater than 1

Answer: 1
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3 Relative density of a compacted dense sand is approximately equal to
A 0.4
B 0.6
C 0.95
D None of these

Answer: 0.95
4 The ratio of volume of voids to the total volume of soil mass is called
A air content
B porosity
C percentage air voids
D voids ratio

Answer: porosity
5 If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is
A less than specific gravity of soil
B equal to specific gravity of soil
C greater than specific gravity of soil
D independent of specific gravity of soil

Answer: equal to specific gravity of soil
6 If the degree of saturation of a partially saturated soil is 60%, then air content of the soil is
A 40%
B 60%
C 80%
D 100%

Answer: 40%
7 Select the correct range of density index,ID
A lD >0
B ID >0
C 0 < lD < 1
D 0 < ID < 1

Answer: 0 < ID < 1
8 When the degree of saturation is zero, the soil mass under consideration represents
A one phase system
B two phase system with soil and air
C two phase system with soil and water
D three phase system

Answer: two phase system with soil and air
9 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
A 1.0 and 0.0
B 0.0 and 1.0
C 0.5 and 1.0
D 1.0 and 0.5

Answer: 0.5 and 1.0
10 Voids ratio of a soil mass can
A never be greater than unity
B be zero
C take any value greater than zero
D take values between 0 and 1 only

Answer: take any value greater than zero
11 Select the correct statement.
A Unit weight of dry soil is greater than unit weight of wet soil.
B For dry soils, dry unit weight is less than total unit weight.
C Unit weight of soil increases due to submergence in water.
D Unit weight of soil decreases due to submergence in water.

Answer: Unit weight of soil decreases due to submergence in water.
12 Valid range for n, the percentage voids, is
A 0 < n < 100
B 0 < n < 100
C n > 0
D n < 0

Answer: 0 < n < 100
13 If the voids of a soil mass are full of air only, the soil is termed as
A air entrained soil
B partially saturated soil
C dry soil
D dehydrated soil

Answer: dry soil
14 soil has a bulk density of 22 kN/m3 and water content 10 %. The dry density of soil is
A 18.6 kN/m3
B 20.0 kN/m3
C 22.0 kN/m3
D 23.2 kN/m3

Answer: 20.0 kN/m3
15 Constant head permeameter is used to test permeability of
A silt
B clay
C coarse sand
D fine sand

Answer: coarse sand
16 Valid range for S, the degree of saturation of soil in percentage is
A S > 0
B S < 0
C 0 < S < 100
D 0 < S < 100

Answer: 0 < S < 100
17 A fully saturated soil is said to be
A one phase system
B two phase system with soil and air
C two phase system with soil and water
D three phase system

Answer: two phase system with soil and water
18 Which of the following types of soil is transported by gravitational forces ?
A loess
B talus
C drift
D dune sand

Answer: talus
19 Water content of soil can
A never be greater than 100 %
B take values only from 0 % to 100 %
C be less than 0 %
D be greater than 100 %

Answer: be greater than 100 %
20 Residual soils are formed by
A glaciers
B wind
C water
D none of the above

Answer: none of the above

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