MCQOPTIONS

Explore topic-wise MCQs in Soil Mechanics.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Soil Mechanics knowledge and support exam preparation. Choose a topic below to get started.

1.	In practical case under a finite surface loading the intensity ______ with depth of layer.
A.	decreases
B.	increases
C.	remains constant
D.	has negligible effect
Answer» B. increases

2.	The consolidation settlement f for a soil stature of thickness H that has fully consolidated index, a pressure increment with respect to mv is given by ____________
A.	<sub>f</sub>=m<sub>v</sub> H
B.	<sub>f</sub>=H
C.	<sub>f</sub>=m<sub>v</sub> H
D.	<sub>f</sub>=m<sub>v</sub>
Answer» D. <sub>f</sub>=m<sub>v</sub>

3.	The consolidation settlement can be computed by ______
A.	using coefficient of volume change only
B.	using voids ratio only
C.	using both Using coefficient of volume change and voids ratio
D.	using compression index only
Answer» D. using compression index only

4.	The minus sign in the change expression for change in thickness H = -mv Ho denotes ______
A.	thickness decreases with increase in pressure
B.	thickness decreases with decrease in pressure
C.	thickness increases with increase in pressure
D.	thickness does not changewith increase in pressure
Answer» B. thickness decreases with decrease in pressure

5.	The change in thickness due to pressure increment is given by ______
A.	H = -m<sub>v</sub> H<sub>o</sub>
B.	H = -m<sub>v</sub>
C.	H = -m<sub>v</sub> H<sub>o</sub>
D.	H = -H<sub>o</sub>
Answer» B. H = -m<sub>v</sub>

6.	The coefficient of volume change with respect to thickness is given by ______
A.	(m_v= H frac{1}{ } )
B.	(m_v= frac{- H}{H_0} )
C.	(m_v= frac{- H}{H_0} frac{1}{e} )
D.	(m_v= frac{- H}{H_0} frac{1}{ } )
Answer» E.

7.	When the soil is laterally confined, the changes in volume is ______
A.	proportional to change in thickness H
B.	inversely proportional to change in thickness H
C.	equal to change in thickness H
D.	does not depend upon the thickness
Answer» B. inversely proportional to change in thickness H

8.	The relation between mv and av is __________
A.	(m_v= frac{a_v}{e_0} )
B.	(m_v= frac{a_v}{1+ } )
C.	(m_v= frac{a_v}{1+e_0} )
D.	(m_v= frac{1}{e_0} frac{a_v}{1+e_0} )
Answer» D. (m_v= frac{1}{e_0} frac{a_v}{1+e_0} )

9.	The coefficient of volume change mv is given by ______
A.	(m_v= frac{1}{ } )
B.	(m_v= frac{- e}{1+e_o} )
C.	(m_v= frac{- e}{1+e_o} frac{1}{ } )
D.	(m_v= frac{- e}{1+e_o} frac{1}{ } )
Answer» E.

10.	The coefficient of volume change mv is also known as ______________
A.	coefficient of compressibility
B.	coefficient of volume compressibility
C.	compression index
D.	expansion index
Answer» C. compression index

11.	For a given difference in pressure, the value of av _______ as pressure increases.
A.	increases
B.	decreases
C.	is same
D.	becomes unity
Answer» C. is same

12.	The coefficient of compressibility av is given by _____________
A.	(a_v=- frac{e_0}{ } )
B.	(a_v=- frac{ }{ e} )
C.	a<sub>v</sub>=- e
D.	(a_v=- frac{ e}{ ^{ }} )
Answer» E.

13.	The equation for pre-compressed soil given by Hough (1957) is ______
A.	C<sub>c</sub>=0.009(w<sub>L</sub>-10%)
B.	C<sub>c</sub>=0.007(w<sub>L</sub>-10%)
C.	C<sub>c</sub>=0.3(e<sub>0</sub>-0.27)
D.	C<sub>c</sub>=0.007(w<sub>L</sub>-30%)
Answer» D. C<sub>c</sub>=0.007(w<sub>L</sub>-30%)

14.	The Cc for ordinary clay of medium to low sensitivity, the value of Cc corresponding to the field consolidation line is given by ______
A.	C<sub>c</sub>=0.009(w<sub>L</sub>-10%)
B.	C<sub>c</sub>=0.007(w<sub>L</sub>-10%)
C.	C<sub>c</sub>=0.007(w<sub>L</sub>-20%)
D.	C<sub>c</sub>=0.007(w<sub>L</sub>-30%)
Answer» B. C<sub>c</sub>=0.007(w<sub>L</sub>-10%)

15.	For an ordinary clay of medium to low sensitivity, the value of Cc corresponding to the field consolidation line is roughly equal to __________ the compression index of remolded sample.
A.	1.3
B.	2.3
C.	3.3
D.	4.3
Answer» B. 2.3