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Free download in PDF Soil Mechanics and Foundation Engineering Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(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
(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
(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
(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%
(7)
Select the correct range of density index,ID
[A]
lD >0
[B]
ID >0
[C]
0 < lD < 1
[D]
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
(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
(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
(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
(15)
Constant head permeameter is used to test permeability of
[A]
silt
[B]
clay
[C]
coarse sand
[D]
fine 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
(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
(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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