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Recent questions tagged geotechnical-engineering
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1
GATE2020-CE-1-7
In a two-dimensional stress analysis, the state of stress at a point $P$ is $\begin{bmatrix} \sigma \end{bmatrix} = \begin{bmatrix}\sigma_{xx} &\tau_{xy} \\ \tau_{xy} &\sigma_{yy} \end{bmatrix}$ The necessary and sufficient condition for existence of the state of pure shear at ... $\tau_{xy}=0$ $\sigma_{xx}+\sigma_{yy}=0$ $(\sigma_{xx}-\sigma_{yy})^2+4\tau^2_{xy}=0$
go_editor
asked
in
Soil Mechanics
Feb 28, 2020
by
go_editor
5.3k
points
gate2020-ce-1
matrix
two-dimensional-flow
geotechnical-engineering
0
votes
0
answers
2
GATE2020-CE-1-22
In a drained triaxial compression test, a sample of sand fails at deviator stress of $150\:kPa$ under confining pressure of $50\:kPa$. The angle of internal friction (in degree, round off to the nearest integer) of the sample, is ______
go_editor
asked
in
Soil Mechanics
Feb 28, 2020
by
go_editor
5.3k
points
gate2020-ce-1
soil-mechanics
geotechnical-engineering
characteristics-of-sand
numerical-answers
0
votes
0
answers
3
GATE2020-CE-1-35
The soil profile at a site up to a depth of $10\:m$ is shown in the figure ( not drawn to the scale). The soil is preloaded with a uniform surcharge (q) of $70\:kN/m^2$ at the ground level. The water table is at a depth of $3\:m$ below ground level. The soil unit weight ... $kPa$) at points $P$ and $Q$, respectively, are $124$ and $204$ $36$ and $ 90$ $36$ and $126$ $54$ and $95$
go_editor
asked
in
Foundation Engineering
Feb 28, 2020
by
go_editor
5.3k
points
gate2020-ce-1
foundation-engineering
geotechnical-engineering
water-table
0
votes
0
answers
4
GATE2020-CE-1-50
In a homogenous unconfined aquifer of area $3.00\:km^2$, the water table was at an elevation of $102.00\:m$. After a natural recharge of volume $0.90$ million cubic meter $(Mm^3)$, the water table rose to $103.20\:m$. After this recharge,ground ... $Mm^3$ and round off to two decimal places), is ______.
go_editor
asked
in
Foundation Engineering
Feb 28, 2020
by
go_editor
5.3k
points
gate2020-ce-1
water-table
foundation-engineering
geotechnical-engineering
numerical-answers
0
votes
0
answers
5
GATE2020 CE-2-6
The state of stress represented by Mohr’s circle shown in the figure is uniaxial tension biaxial tension of equal magnitude hydrostatic stress pure shear
go_editor
asked
in
Soil Mechanics
Feb 13, 2020
by
go_editor
5.3k
points
gate2020-ce-2
soil-mechanics
geotechnical-engineering
mohr's-circle
stress-paths
0
votes
0
answers
6
GATE2020 CE-2-10
Soil deposit formed due to transportation by wind is termed as aeolian deposit alluvial deposit estuarine deposit lacustrine deposit
go_editor
asked
in
Soil Mechanics
Feb 13, 2020
by
go_editor
5.3k
points
gate2020-ce-2
soil-mechanics
geotechnical-engineering
soil-structure
aeolian-deposit
0
votes
0
answers
7
GATE2020 CE-2-11
A sample of $500\:g$ dry sand, when poured into a $2$ litre capacity cylinder which is partially filled with water, displaces $188\:cm^3$ of water. The density of water is $1\:g/cm^3.$ The specific gravity of the sand is $2.72$ $2.66$ $2.55$ $2.52$
go_editor
asked
in
Soil Mechanics
Feb 13, 2020
by
go_editor
5.3k
points
gate2020-ce-2
geotechnical-engineering
soil-mechanics
specific-gravity
0
votes
0
answers
8
GATE2020 CE-2-34
Permeability tests were carried out on the samples collected from two different layers as shown in the figure (not drawn to the scale). The relevant horizontal $(k_h)$ and vertical $(k_v)$ coefficients of permeability are indicated for each layer. The ratio of the equivalent horizontal to vertical coefficients of permeability, is $37.29$ $80.20$ $68.25$ $0.03$
go_editor
asked
in
Soil Mechanics
Feb 13, 2020
by
go_editor
5.3k
points
gate2020-ce-2
coefficient-of-permeability
soil-mechanics
geotechnical-engineering
0
votes
0
answers
9
GATE2020 CE-2-35
A $10\ m$ high slope of dry clay soil $\text{( unit weight}\: = 20 kN/m^3$), with a slope angle of $45^{\circ}$and the circular slip surface, is shown in the figure (not drawn to the scale). The weight of the slip wedge is denoted by $W$. The undrained unit cohesion $(c_u)$ is $60\: kPa$. The factor of safety of the slope against slip failure, is $1.84$ $1.57$ $0.58$ $1.67$
go_editor
asked
in
Geotechnical Engineering
Feb 13, 2020
by
go_editor
5.3k
points
gate2020-ce-2
geotechnical-engineering
characteristics-of-clay
soil-mechanics
0
votes
0
answers
10
GATE2017 CE-2-4
Let $G$ be the specific gravity of soil solids, $w$ the water content in the soil sample, $\gamma_w$ the unit weight of water, and $\gamma_d$ ... $\gamma_d = \dfrac{Gw}{1 + \gamma_w} \\$ $\gamma_d = \dfrac{Gw}{1 - \gamma_w}$
gatecse
asked
in
Soil Mechanics
Aug 7, 2019
by
gatecse
4.0k
points
gate2017-ce-2
soil-mechanics
geotechnical-engineering
compaction-of-soils
0
votes
0
answers
11
GATE2017 CE-2-5
Consider the following statements related to pore pressure parameters, $A$ and $B$: $A$ always lies between $0$ and $1.0$ $A$ can be less than $0$ or greater than $1.0$ $B$ always lies between $0$ and $1.0$ $B$ can be less than $0$ or greater than $1.0$ For these statements, which of the following options is correct? P and R P and S Q and R Q and S
gatecse
asked
in
Soil Mechanics
Aug 7, 2019
by
gatecse
4.0k
points
gate2017-ce-2
geotechnical-engineering
soil-mechanics
pore-pressure
0
votes
0
answers
12
GATE2017 CE-2-17
The plate load test was conducted on a clayey strata by using a plate of $0.3 \: m \times 0.3 \: m$ dimensions, and the ultimate load per unit area for the plate for found to be $180$ kPa. The ultimate bearing capacity (in kPa) of a $2$ m wide square footing would be $27$ $180$ $1200$ $2000$
gatecse
asked
in
Foundation Engineering
Aug 7, 2019
by
gatecse
4.0k
points
gate2017-ce-2
foundation-engineering
geotechnical-engineering
plate-load-test
0
votes
0
answers
13
GATE2017 CE-2-21
A sheet pile has an embedment depth of $12$ m in a homogeneous soil stratum. The coefficient of permeability of soil is $10^{-6} m/s$. Difference in the water levels between the two sides of the sheet pile is $4$ m. The flow net is constructed with ... of equipotential lines. The quantity of seepage (in $cm^3/s$ per m, up to one decimal place) under the sheet pile is _________
gatecse
asked
in
Foundation Engineering
Aug 7, 2019
by
gatecse
4.0k
points
gate2017-ce-2
numerical-answers
foundation-engineering
geotechnical-engineering
types-of-piles
0
votes
0
answers
14
GATE2017 CE-2-34
Two identical concrete piles having the plan dimensions $50 \: cm \times 50 \: cm$ are driven into a homogeneous sandy layers as shown in the figures. Consider the bearing capacity factor $N_q$ for $\phi = 30 ^{\circ}$ as $24$. If $Q_{P1}$ and $Q_{P2}$ represent the ultimate point ... by about $100 \%$ $Q_{P1} > Q_{P2}$ by about $5 \%$ $Q_{P1} < Q_{P2}$ by about $5 \%$
gatecse
asked
in
Foundation Engineering
Aug 7, 2019
by
gatecse
4.0k
points
gate2017-ce-2
foundation-engineering
geotechnical-engineering
bearing-capacity
types-of-piles
0
votes
0
answers
15
GATE2017 CE-2-35
Following are the statements related to the stress paths in a triaxial testing of soils: If $\sigma_1 = \sigma_3$, the stress point lies at the origin of the $p-q$ plot If $\sigma_1 = \sigma_3$, the stress point lies on the $p$-axis of the $p-q$ plot If $\sigma_1 > \sigma_3$, ... - True P - True; Q - False; R - True P - False; Q - True; R - False P - True; Q - False; R - False
gatecse
asked
in
Soil Mechanics
Aug 7, 2019
by
gatecse
4.0k
points
gate2017-ce-2
soil-mechanics
geotechnical-engineering
stress-paths
0
votes
0
answers
16
GATE2017 CE-2-44
Consider a square shaped area ABCD on the ground with its centre at M as shown in the figure. Four concentrated vertical loads of $P=5000$ kN are applied on this area, one at each corner. The vertical stress increment (in kPa, up to one decimal place) due to these loads according to the Boussinesq’s equation, at a point $5$ m right below M, is _______
gatecse
asked
in
Foundation Engineering
Aug 7, 2019
by
gatecse
4.0k
points
gate2017-ce-2
numerical-answers
boussinesq's-theory
foundation-engineering
geotechnical-engineering
0
votes
0
answers
17
GATE2019 CE-1: 16
A retaining wall of height $H$ with smooth vertical backface supports a backfill inclined at an angle $\beta$ with the horizontal. The backfill consists of cohesionless soil having angle of internal friction $\phi$. If the active lateral thrust acting on the wall is $P_a$ ... $P_a$ acts at a height $H/3$ from the base of the wall and at an angle $\phi$ with the horizontal
Arjun
asked
in
Foundation Engineering
Feb 14, 2019
by
Arjun
11.6k
points
gate2019-ce-1
foundation-engineering
geotechnical-engineering
earth-pressure
0
votes
0
answers
18
GATE2019 CE-1: 17
In a soil specimen, the total stress, effective stress, hydraulic gradient and critical hydraulic gradient are $\sigma, \: \sigma’$, $i$ and $i_c$, respectively. For initiation of quicksand condition, which one of the following statements is TRUE? $\sigma’ \neq 0$ and $i=i_c$ $\sigma’ = 0$ and $i=i_c$ $\sigma’ \neq 0$ and $i \neq i_c$ $\sigma = 0$ and $i=i_c$
Arjun
asked
in
Soil Mechanics
Feb 14, 2019
by
Arjun
11.6k
points
gate2019-ce-1
soil-mechanics
geotechnical-engineering
quicksand-condition
0
votes
0
answers
19
GATE2019 CE-1: 20
A completely mixed dilute suspension of sand particles having diameters $0.25, \: 0.35, \: 0.40, \: 0.45$ and $0.50 \: mm$ are filled in a transparent glass column of diameter $10 \: cm$ and height $2.50 \: m$. The suspension is allowed to ... $0.45$ and $0.50 \: mm$ from the suspension is _________
Arjun
asked
in
Foundation Engineering
Feb 14, 2019
by
Arjun
11.6k
points
gate2019-ce-1
numerical-answers
geotechnical-engineering
foundation-engineering
settlement-analysis-in-sands
0
votes
0
answers
20
GATE2019 CE-1: 24
A soil has specific gravity of its solids equal to $2.65$. The mass density of water is $1000 \: kg/m^3$. Considering zero air voids and $10 \%$ moisture content of the soil sample, the dry density (in $kg /m^3$, round off to $1$ decimal place) would be ______
Arjun
asked
in
Soil Mechanics
Feb 14, 2019
by
Arjun
11.6k
points
gate2019-ce-1
numerical-answers
soil-mechanics
geotechnical-engineering
0
votes
0
answers
21
GATE2019 CE-1: 25
A concentrated load of $500 \: kN$ is applied on an elastic half space. The ratio of the increase in vertical normal stress at depths of $2 \: m$ and $4 \: m$ along the point of the loading, as per Boussinesq’s theory, would be _____
Arjun
asked
in
Foundation Engineering
Feb 14, 2019
by
Arjun
11.6k
points
gate2019-ce-1
numerical-answers
foundation-engineering
geotechnical-engineering
boussinesqs-theory
0
votes
0
answers
22
GATE2019 CE-1: 29
For the following statements: P - The lateral stress in the soil while being tested in an oedometer is always at-rest. Q - For a perfectly rigid strip footing at deeper depths in a sand deposit, the vertical normal contact stress at the footing edge is greater than that at its centre. R - ... FALSE; Q - FALSE; R - TRUE P - TRUE; Q - TRUE; R - FALSE P - FALSE; Q - FALSE; R - FALSE
Arjun
asked
in
Foundation Engineering
Feb 14, 2019
by
Arjun
11.6k
points
gate2019-ce-1
foundation-engineering
geotechnical-engineering
standard-penetration-test
0
votes
0
answers
23
GATE2019 CE-1: 41
A $0.80 \: m$ deep bed of sand filter (length $4 \:m $ and width $3 \: m$) is made of uniform particles (diameter $=0.40 \: mm$, specific gravity $=2.65$, shape factor $=0.85$) with bed porosity of $0.4$. The bed has to be backwashed at ... the terminal settling velocity of sand particles is $0.05 \: m/s$, the expanded bed depth (in $m$ round off to $2$ decimal places) is _______
Arjun
asked
in
Foundation Engineering
Feb 14, 2019
by
Arjun
11.6k
points
gate2019-ce-1
numerical-answers
foundation-engineering
geotechnical-engineering
settlement-analysis-in-sand
0
votes
0
answers
24
GATE2019 CE-1: 52
A reinforced concrete circular pile of $12 \: m$ length and $0.6 \: m$ diameter is embedded in stiff clay which has an undrained unit cohesion of $110 \: kN/m^2$. The adhesion factor is $0.5$. The Net Ultimate Pullout (uplift) Load for the pile (in $kN$, round off to $1$ decimal place) is __________
Arjun
asked
in
Foundation Engineering
Feb 14, 2019
by
Arjun
11.6k
points
gate2019-ce-1
numerical-answers
foundation-engineering
geotechnical-engineering
load-capacity-of-piles-in-clay
0
votes
0
answers
25
GATE2019 CE-1: 53
A granular soil has a saturated unit weight of $20 \:kN/m^3$ and an effective angle of shearing resistance of $30^{\circ}$. The unit weight of water is $9.81 \: kN/m^3$. A slope is to be made on this soil deposit in which the seepage occurs ... seepage condition for a factor of safety of $1.5$, the safe slope angle (in degree, round off to $1$ decimal place) would be ________
Arjun
asked
in
Soil Mechanics
Feb 14, 2019
by
Arjun
11.6k
points
gate2019-ce-1
numerical-answers
soil-mechanics
geotechnical-engineering
seepage-through-soils
0
votes
1
answer
26
GATE2019 CE-1: 55
A square footing of $ 4 \: m$ side is placed at $1 \: m$ depth in a sand deposit. The dry unit weight $( \gamma)$ of sand is $15 \: kN/m^3$. This footing has an ultimate bearing capacity of $600 \: kPa$ ... deposit. For a factor of safety of $3.0$ as per Terzaghi's theory, the safe bearing capacity (in $kPa$) of this footing would be _________
Arjun
asked
in
Foundation Engineering
Feb 14, 2019
by
Arjun
11.6k
points
gate2019-ce-1
numerical-answers
foundation-engineering
geotechnical-engineering
bearing-capacity-factor
0
votes
0
answers
27
GATE2019 CE-2: 16
The notation “SC” as per Indian Standard Soil Classification System refers to Sandy clay Silty clay Clayey silt Clayey sand
Arjun
asked
in
Geotechnical Engineering
Feb 12, 2019
by
Arjun
11.6k
points
gate2019-ce-2
geotechnical-engineering
indian-standard-soil-classification-system
soil-mechanics
0
votes
0
answers
28
GATE2019 CE-2: 17
An anisotropic soil deposit has coefficient of permeability in vertical and horizontal directions as $k_z$ and $k_x$, respectively. For constructing a flow net, the horizontal dimension of the problem’s geometry is transformed by a multiplying factor of $\sqrt{\dfrac{k_z}{k_x}} \\$ $\sqrt{\dfrac{k_x}{k_z}} \\$ $\dfrac{k_x}{k_z} \\$ $\dfrac{k_z}{k_x}$
Arjun
asked
in
Geotechnical Engineering
Feb 12, 2019
by
Arjun
11.6k
points
gate2019-ce-2
geotechnical-engineering
soil-mechanics
permeability
0
votes
0
answers
29
GATE2019 CE-2: 25
Construction of a new building founded on a clayey soil was completed in January $2010$. In January $2014$, the average consolidation settlement of the foundation in clay was recorded as $10 \: mm$. The ultimate consolidation settlement was estimated in ... soil site, the expected consolidation settlement in January $2019$( in mm, round off to the nearest integer) will be _______
Arjun
asked
in
Foundation Engineering
Feb 12, 2019
by
Arjun
11.6k
points
gate2019-ce-2
numerical-answers
geotechnical-engineering
foundation-engineering
settlement-analysis-in-clays
0
votes
1
answer
30
GATE2019 CE-2: 52
A $2 \: m \times 4 \: m$ rectangular footing has to carry a uniformly distributed load of $120 \: kPa$. As per the $2:1$ dispersion method of stress distribution, the increment in vertical stress (in $kPa$) at a depth of $2\: m$ below the footing is _______
Arjun
asked
in
Foundation Engineering
Feb 12, 2019
by
Arjun
11.6k
points
gate2019-ce-2
numerical-answers
foundation-engineering
geotechnical-engineering
stress-distribution
0
votes
0
answers
31
GATE2019 CE-2: 53
Constant head permeability tests were performed on two soil specimens, $S1$ and $S$. The ratio of height of the two specimens $(L_{S1}: L_{S2})$ is $1.5$, the ratio of the diameter of specimens $(D_{S1}: D_{S2})$ is $0.5$, and the ratio of the ... $(k_{S1}: k_{S2})$ is _____
Arjun
asked
in
Soil Mechanics
Feb 12, 2019
by
Arjun
11.6k
points
gate2019-ce-2
numerical-answers
geotechnical-engineering
permeability
0
votes
0
answers
32
GATE2019 CE-2: 54
A timber pile of length $8 \: m$ and diameter $0.2 \: m$ is driven with a $20 \: kN$ drop hammer, falling freely from a height of $1.5 \: m$. The total penetration of the pile in the last $5$ blows is $40 \: mm$. Use the Engineering News Record ... to energy losses) of $2.5 \: cm$. The safe load carrying capacity of the pile (in $kN$, round off to $2$ decimal places) is __________
Arjun
asked
in
Foundation Engineering
Feb 12, 2019
by
Arjun
11.6k
points
gate2019-ce-2
numerical-answers
foundation-engineering
geotechnical-engineering
types-of-pile
penetration-test
0
votes
0
answers
33
GATE2019 CE-2: 55
A square footing of $2 \: m$ sides rests on the surface of a homogeneous soil bed having the properties: cohesion $c= 24 \: kPa$, angle of internal friction $\phi = 25^{\circ}$, and unit weight $\gamma = 18 \: kN/m^3$. Terzaghi's bearing capacity ... and $N_{\gamma}' =3.2$. The ultimate bearing capacity of the foundation (in $kPa$, round off to $2$ decimal places) is _________
Arjun
asked
in
Foundation Engineering
Feb 12, 2019
by
Arjun
11.6k
points
gate2019-ce-2
numerical-answers
foundation-engineering
geotechnical-engineering
bearing-capacity
terzaghis-bearing-capacity
0
votes
0
answers
34
GATE2016-2-11
A strip footing is resting on the surface of a purely clayey soil deposit. If the width of the footing is doubled, the ultimate bearing capacity of the soil becomes double becomes half becomes four-times remains the same
Milicevic3306
asked
in
Geotechnical Engineering
Mar 28, 2018
by
Milicevic3306
11.9k
points
gate2016-ce-2
fondation-engineering
geotechnical-engineering
bearing-capacity
0
votes
0
answers
35
GATE2016-2-12
The relationship between the specific gravity of sand $(G)$ and the hydraulic gradient $(i)$ to initiate quick condition in the sand layer having porosity of $30 \%$ is $G=0.7i+1$ $G=1.43i-1$ $G=1.43i+1$ $G=0.7i-1$
Milicevic3306
asked
in
Foundation Engineering
Mar 28, 2018
by
Milicevic3306
11.9k
points
gate2016-ce-2
foundation-engineering
geotechnical-engineering
specific-gravity-and-hydraulic-gradient
0
votes
0
answers
36
GATE2016-2-13
The results of a consolidation test on an undisturbed soil, sampled at a depth of $10 \: m$ ... weight of water as $10 \: kN/m^3$, the over-consolidation ratio of the soil is $0.67$ $1.50$ $1.77$ $2.00$
Milicevic3306
asked
in
Soil Mechanics
Mar 28, 2018
by
Milicevic3306
11.9k
points
gate2016-ce-2
soil-mechanics
geotechnical-engineering
consolidation
0
votes
0
answers
37
GATE2016-2-17
The atmospheric layer closest to the earth surface is the mesosphere the stratosphere the thermosphere the troposphere
Milicevic3306
asked
in
Soil Mechanics
Mar 28, 2018
by
Milicevic3306
11.9k
points
gate2016-ce-2
geotechnical-engineering
soil-mechanics
atmospheric-layer
0
votes
0
answers
38
GATE2016-2-40
The seepage occurring through an earthen dam is represented by a flownet comprising of $10$ equipotential drops and $20$ flow channels. The coefficient of permeability of the soil is $3 \: mm/min$ and the head loss is $5 \: m$. The rate of seepage (expressed in $cm^3/s$ per $m$ length of the dam) through the earthen dam is _________
Milicevic3306
asked
in
Soil Mechanics
Mar 28, 2018
by
Milicevic3306
11.9k
points
gate2016-ce-2
numerical-answers
soil-mechanics
geotechnical-engineering
seepage-through-soils
coefficient-of-permeability
0
votes
0
answers
39
GATE2016-2-41
The soil profile at a site consists of a $5 \: m$ thick sand layer underlain by a $c - \phi$ soil as shown in figure. The water table is found $1 \: m$ below the ground level. The entire soil mass is retained by a concrete retaining wall and is ... the wall is smooth ans vertical. The total active earth pressure (expressed in $kN/m^2$) at point A as per Rankine's theory is __________
Milicevic3306
asked
in
Foundation Engineering
Mar 28, 2018
by
Milicevic3306
11.9k
points
gate2016-ce-2
numerical-answers
foundation-engineering
geotechnical-engineering
rankine's-theory
effect-of-water-table
0
votes
0
answers
40
GATE2016-2-42
OMC-SP and MDD-SP denote the optimum moisture content and maximum dry density obtained from standard Proctor compaction test, respectively. OMC-MP and MDD-MP denote the optimum moisture content and maximum dry density obtained from the modified Proctor compaction test, respectively. Which one of the ... $>$ MDD-MP OMC-SP $>$ OMC-MP and MDD-SP $>$ MDD-MP
Milicevic3306
asked
in
Geotechnical Engineering
Mar 28, 2018
by
Milicevic3306
11.9k
points
gate2016-ce-2
proctor-compaction-test
geotechnical-engineering
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