Most answered questions in Structural Engineering / GO Civil

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81

GATE2019 CE-1: 9
In the reinforced beam section shown in the figure $\text{(not drawn to scale)}$, the nominal cover provided at the bottom of the beam as per $\text{IS 456-2000},$ is $\text{30 mm}$ $\text{36 mm}$ $\text{42 mm}$ $\text{50 mm}$

In the reinforced beam section shown in the figure $\text{(not drawn to scale)}$, the nominal cover provided at the bottom of the beam as per $\text{IS 456-2000},$ is$\te...

Arjun

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82

GATE2019 CE-1: 19
For a given loading on a rectangular plain concrete beam with an overall depth of $500 \: mm$, the compressive strain and tensile strain developed at the extreme fibers are of the same magnitude of $2.5 \times 10^{-4}$. The curvature in the beam cross-section (in $m^{-1}$, round off to $3$ decimal places), is ________

For a given loading on a rectangular plain concrete beam with an overall depth of $500 \: mm$, the compressive strain and tensile strain developed at the extreme fibers a...

Arjun

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83

GATE2019 CE-1: 31
The cross-section of a built-up wooden beam as shown in the figure (not drawn to scale) is subjected to a vertical shear force of $8 \: kN$. The beam is symmetrical about the neural axis (N.A.) shown, and the moment of inertia about N.A. is $1.5 \times 10^9 \: mm^4$. ... , each of the nails at P will be subjected to the shear force of $60 \: N$ $120 \: N$ $240 \: N$ $480 \: N$

The cross-section of a built-up wooden beam as shown in the figure (not drawn to scale) is subjected to a vertical shear force of $8 \: kN$. The beam is symmetrical about...

Arjun

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84

GATE2019 CE-1: 32
The rigid-jointed plane frame QRS shown in the figure is subjected to a load $P$ at the joint $R$. Let the axial deformations in the frame be neglected. If the support $S$ undergoes a settlement of $\Delta = \frac{PL^3}{\beta EI}$, the vertical reaction at the support $S$ will become zero when $\beta$ is equal to $0.1$ $3.0$ $7.5$ $48.0$

The rigid-jointed plane frame QRS shown in the figure is subjected to a load $P$ at the joint $R$. Let the axial deformations in the frame be neglected. If the support $S...

Arjun

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85

GATE2019 CE-1: 33
If the section shown in the figure turns from fully-elastic to fully-plastic, the depth of neural axis (N.A), $\overline{y}$, decreases by $10.75 \: mm$ $12.25 \: mm$ $13.75 \: mm$ $15.25 \: mm$

If the section shown in the figure turns from fully-elastic to fully-plastic, the depth of neural axis (N.A), $\overline{y}$, decreases by$10.75 \: mm$$12.25 \: mm$$13.75...

Arjun

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86

GATE2019 CE-1: 36
A $16 \: mm$ thick gusset plate is connected to the $12 \: mm$ thick flange plate of an I-section using fillet welds on both sides as shown in the figure (not drawn to scale). The gusset plate is subjected to a point load of $350 \: kN$ ... $1$ decimal place) on the fillet weld along the vertical plane would be _______

A $16 \: mm$ thick gusset plate is connected to the $12 \: mm$ thick flange plate of an I-section using fillet welds on both sides as shown in the figure (not drawn to sc...

Arjun

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87

GATE2019 CE-1: 37
The network of a small construction project awarded to a contractor is shown in the following figure. The normal duration, crash duration, normal cost, and crash cost of all the activities are shown in the table. The indirect cost incurred by the contractor is ... is targeted for completion in $16$ days, the total cost (in INR) to be incurred by the contractor would be _______

The network of a small construction project awarded to a contractor is shown in the following figure. The normal duration, crash duration, normal cost, and crash cost of ...

Arjun

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88

GATE2019 CE-1: 39
A portal frame shown in figure (not drawn to scale) has a hinge support at joint P and a roller support at joint R. A point load of $50 \: kN$ is acting at joint in R in the horizontal direction. The flexural rigidity. EI, of each number is $10^6 \: kNm^2$. Under the applied load, the horizontal displacement (in mm, round off to $1$ decimal place) of joint R would be _________

A portal frame shown in figure (not drawn to scale) has a hinge support at joint P and a roller support at joint R. A point load of $50 \: kN$ is acting at joint in R in ...

Arjun

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89

GATE2019 CE-1: 48
Tie bars of $12 \: mm$ diameter are to be provided in a concrete pavement slab. The working tensile stress of the tie bars is $230 \: MPa$, the average bond strength between a tie bar and concrete is $2 \: MPa$, and the joint gap between the slabs ... loss of bond and the tolerance factor, the design length of the tie bars (in $mm$, round off to the nearest integer) is ________

Tie bars of $12 \: mm$ diameter are to be provided in a concrete pavement slab. The working tensile stress of the tie bars is $230 \: MPa$, the average bond strength betw...

Arjun

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90

GATE2019 CE-1: 54
A $3 \: m \times 3 \: m$ square precast reinforced concrete segments to be installed by pushing them through an existing railway embankment for making an underpass as shown in the figure. A reaction arrangement using precast PCC blocks placed on the ground ... the same properties that of soil, the factor of safety (round off to $1$ decimal place) against shear failure is ________

A $3 \: m \times 3 \: m$ square precast reinforced concrete segments to be installed by pushing them through an existing railway embankment for making an underpass as sho...

Arjun

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91

GATE2019 CE-2: 5
A closed thin-walled tube has thickness, $t$, mean enclosed area within the boundary of the centerline of tube’s thickness, $A_m$, and shear stress, $\tau$. Torsional moment of resistance, $T$, of the section would be $0.5 \tau A_m t$ $\tau A_m t$ $2 \tau A_m t$ $4 \tau A_m t$

A closed thin-walled tube has thickness, $t$, mean enclosed area within the boundary of the centerline of tube’s thickness, $A_m$, and shear stress, $\tau$. Torsional m...

Arjun

13.0k points

Arjun asked Feb 12, 2019

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92

GATE2019 CE-2: 6
A steel column is restrained against both translation and rotation at one end and is restrained only against rotation but free to translate at the other end. Theoretical and design $(\text{IS}:800-2007)$ values, respectively, of effective length factor of the column are $1.0$ and $1.0$ $1.2$ and $1.0$ $1.2$ and $1.2$ $1.0$ and $1.2$

A steel column is restrained against both translation and rotation at one end and is restrained only against rotation but free to translate at the other end. Theoretical ...

Arjun

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93

GATE2019 CE-2: 7
If the fineness modulus of a sample of fine aggregates is $4.3$, the mean size of the particles in the sample is between $150 \: \mu m$ and $300 \: \mu m$ $300 \: \mu m$ and $600 \: \mu m$ $1.18 \: mm$ and $2.36 \: mm$ $2.36 \: mm$ and $4.75\: mm$

If the fineness modulus of a sample of fine aggregates is $4.3$, the mean size of the particles in the sample is between$150 \: \mu m$ and $300 \: \mu m$$300 \: \mu m$ an...

Arjun

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94

GATE2019 CE-2: 8
For a channel section subjected to a downward vertical shear force at its centroid, which one of the following represents the correct distribution of shear stress in flange and web?

For a channel section subjected to a downward vertical shear force at its centroid, which one of the following represents the correct distribution of shear stress in flan...

Arjun

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95

GATE2019 CE-2: 20
The degree of static indeterminacy of the plane frame as shown in the figure is ________

The degree of static indeterminacy of the plane frame as shown in the figure is ________

Arjun

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96

GATE2019 CE-2: 21
The characteristic compressive strength of concrete required in a project is $25 \: MPa$ and the standard deviation in the observed compressive strength expected at site is $4 \: MPa$. The average compressive strength of cubes tested at different water-cement (w/c) ... The water-cement ratio (in percent, round off to the lower integer) to be used in the mix is ______

The characteristic compressive strength of concrete required in a project is $25 \: MPa$ and the standard deviation in the observed compressive strength expected at site ...

Arjun

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97

GATE2019 CE-2: 29
For a plane stress problem, the state of stress at a point P is represented by the stress element as shown in figure. By how much angle $( \theta)$ in degrees the stress element should be rotated in order to get the planes of maximum shear stress? $13.3$ $26.6$ $31.7$ $48.3$

For a plane stress problem, the state of stress at a point P is represented by the stress element as shown in figure.By how much angle $( \theta)$ in degrees the stress e...

Arjun

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98

GATE2019 CE-2: 30
The critical bending compressive stress in the extreme fibre of a structural steel section is $1000 \: MPa$. It is given that the yield strength of the steel is $250 \: MPa$, width of flange is $250 \: mm$ and thickness of flange is $15 \: mm$. As per the provisions of $IS:800-2007$, the non-dimensional slenderness ratio of the steel cross-section is $0.25$ $0.50$ $0.75$ $2.00$

The critical bending compressive stress in the extreme fibre of a structural steel section is $1000 \: MPa$. It is given that the yield strength of the steel is $250 \: M...

Arjun

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99

GATE2019 CE-2: 31
In the context of provisions relating to durability of concrete, consider the following assertions: $\textbf{Assertions:(1)}: $ As per $IS \: 456-2000$, air entrainment to the extent of $3 \%$ to $6 \%$ is required for concrete exposed to marine environment. ... and Assertion (2) is FALSE Both Assertion (1) and Assertion (2) are FALSE Both Assertion (1) and Assertion (2) are TRUE

In the context of provisions relating to durability of concrete, consider the following assertions:$\textbf{Assertions:(1)}: $ As per $IS \: 456-2000$, air entrainment to...

Arjun

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100

GATE2019 CE-2: 36
A long uniformly distributed load of $10 \: kN/m$ and a concentrated load of $60 \: kN$ are moving together on the beam ABCD shown in the figure (not drawn to scale). The relative positions of the two loads are not fixed. The maximum shear force (in $kN$, round off to the nearest integer) caused at the internal hinge B due to the two loads is _________

A long uniformly distributed load of $10 \: kN/m$ and a concentrated load of $60 \: kN$ are moving together on the beam ABCD shown in the figure (not drawn to scale). The...

Arjun

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101

GATE2019 CE-2: 37
A plane frame shown in the figure (not to scale) has linear elastic springs at node H. The spring constants are $k_x = k_y = 5 \times 10^5 kN/m$ and $k_{\theta} =3 \times 10^5 \: kNm/rad$. For the externally applied moment of $30 \: kNm$ at node F, the rotation (in degrees, round off to $3$ decimals) observed in the rotational spring at node H is ______

A plane frame shown in the figure (not to scale) has linear elastic springs at node H. The spring constants are $k_x = k_y = 5 \times 10^5 kN/m$ and $k_{\theta} =3 \times...

Arjun

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102

GATE2019 CE-2: 38
A rolled $I$-section beam is supported in a $75 \: mm$ wide bearing plate as shown in the figure. Thicknesses of flange and web of the $I$ section $20 \: mm$ and $8 \: mm$, respectively. Root radius of the $I$-section is $10 \: mm$. Assume: material ... $IS: 800-2007$, the web bearing strength (in $kN$, round off to $2$ decimal places) of the beam is __________

A rolled $I$-section beam is supported in a $75 \: mm$ wide bearing plate as shown in the figure. Thicknesses of flange and web of the $I$ section $20 \: mm$ and $8 \: mm...

Arjun

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103

GATE2019 CE-2: 39
When a specimen of $M25$ concrete is loaded to a stress level of $12.5 \: MPa$, a strain of $500 \times 10^{-6}$ is recorded. If this load is allowed to stand for a long time, the strain increases to $1000 \times 10^{-6}$. In ... with the provisions of $IS:456-2000$, considering the long-term effects, the effective modulus of elasticity of the concrete (in $MPa$) is _________

When a specimen of $M25$ concrete is loaded to a stress level of $12.5 \: MPa$, a strain of $500 \times 10^{-6}$ is recorded. If this load is allowed to stand for a long ...

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104

GATE2016-2-6
The kinematic indeterminacy of the plane truss shown in the figure is $11$ $8$ $3$ $0$

The kinematic indeterminacy of the plane truss shown in the figure is$11$$8$$3$$0$

Milicevic3306

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Milicevic3306 asked Mar 27, 2018

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105

GATE2016-2-7
As per $\text{IS } 456-2000$ for the design of reinforced concrete beam, the maximum allowable shear stress $(\tau_{\tau \text{max}})$ depends on the grade of concrete and grade of steel grade of concrete only grade of steel only grade of concrete and percentage of reinforcement

As per $\text{IS } 456-2000$ for the design of reinforced concrete beam, the maximum allowable shear stress $(\tau_{\tau \text{max}})$ depends on thegrade of concrete and...

Milicevic3306

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106

GATE2016-2-8
An assembly made of a rigid arm $A-B-C$ hinged at end $A$ and supported by an elastic rope $C-D$ at end $C$ is shown in the figure. The members may be assumed to be weightless and the lengths of the respective members are shown in the figure. Under the action of a concentrated load $P$ at ... the rope is $\dfrac{3P}{\sqrt{2}} \\$ $\dfrac{P}{\sqrt{2}} \\$ $\dfrac{3P}{8} \\$ $\sqrt{2}P$

An assembly made of a rigid arm $A-B-C$ hinged at end $A$ and supported by an elastic rope $C-D$ at end $C$ is shown in the figure. The members may be assumed to be weigh...

Milicevic3306

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107

GATE2016-2-9
As per Indian standards for bricks, minimum acceptable compressive strength of any class of burnt clay bricks in dry state is $10.0 \text{ MPa}$ $7.5 \text{ MPa}$ $5.0 \text{ MPa}$ $3.5 \text{ MPa}$

As per Indian standards for bricks, minimum acceptable compressive strength of any class of burnt clay bricks in dry state is$10.0 \text{ MPa}$$7.5 \text{ MPa}$$5.0 \text...

Milicevic3306

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108

GATE2016-2-10
A construction project consists of twelve activities. The estimated duration (in days) required to complete each of the activities along with the corresponding network diagram is shown below. ... $11-12$ for the project are, respectively, $25$ and $1$ $1$ nd $1$ $0$ and $0$ $81$ and $0$

A construction project consists of twelve activities. The estimated duration (in days) required to complete each of the activities along with the corresponding network di...

Milicevic3306

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109

GATE2016-2-31
An elastic isotropic body is in a hydrostatic state of stress as shown in the figure. For no change in the volume to occur, what should be its Poisson’s ratio? $0.00$ $0.25$ $0.50$ $1.00$

An elastic isotropic body is in a hydrostatic state of stress as shown in the figure. For no change in the volume to occur, what should be its Poisson’s ratio?$0.00$$0....

Milicevic3306

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110

GATE2016-2-32
For the stress state (in MPa) shown in the figure, the major principal stress is $10$ MPa. The shear stress $\tau$ is $10.0$ MPa $5.0$ MPa $2.5$ MPa $0.0$ MPa

For the stress state (in MPa) shown in the figure, the major principal stress is $10$ MPa.The shear stress $\tau$ is$10.0$ MPa$5.0$ MPa$2.5$ MPa$0.0$ MPa

Milicevic3306

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111

GATE2016-2-33
The portal frame shown in the figure is subjected to a uniformly distributed vertical load $w$ (per unit length). The bending moment in the beam at the joint ‘Q’ is zero $\dfrac{wL^2}{24}$ (hogging) $\dfrac{wL^2}{12}$ (hogging) $\dfrac{wL^2}{8}$ (sagging)

The portal frame shown in the figure is subjected to a uniformly distributed vertical load $w$ (per unit length).The bending moment in the beam at the joint ‘Q’ iszer...

Milicevic3306

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112

GATE2016-2-34
Consider the structural system shown in the figure under the action of weight $W$. All the joints are hinged. The properties of the members in terms of length ($L$), area ($A$) and the modulus of elasticity ($E$) are also given in the figure. Let $L$, $A$ and $E$ ... $=0.0417 \: m$ Compressive force $=100 \: kN$; Stress $=1000 \; kN/m^2$; Extension $=0.0417 \: m$

Consider the structural system shown in the figure under the action of weight $W$. All the joints are hinged. The properties of the members in terms of length ($L$), area...

Milicevic3306

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Milicevic3306 asked Mar 27, 2018

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113

GATE2016-2-35
A haunched (varying depth) reinforced concrete beam is simply supported at both ends, as shown in the figure. The beam is subjected to a uniformly distributed factored load of intensity $10 \: kN/m$. The design shear force (expressed in $kN$) at the section X-X of the beam is ________

A haunched (varying depth) reinforced concrete beam is simply supported at both ends, as shown in the figure. The beam is subjected to a uniformly distributed factored lo...

Milicevic3306

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114

GATE2016-2-36
A $450 \: mm$ long plain concrete prism is subjected to the concentrated vertical loads as shown in the figure. Cross section of the prism is given as $150 \: mm \times 150 \: mm$. Considering linear stress distribution across the cross-section, the modulus of rupture (expressed in MPa) is _____________

A $450 \: mm$ long plain concrete prism is subjected to the concentrated vertical loads as shown in the figure. Cross section of the prism is given as $150 \: mm \times 1...

Milicevic3306

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115

GATE2016-2-37
Two bolted plates under tension with alternative arrangement of bolt holes are shown in figure $1$ and $2$. The hole diameter, pitch, and gauge length are $d$, $p$ and $g$, respectively. Which one of the following conditions must be ensured to have higher net tensile capacity of configuration ... shown in Figure $1$? $p^2 > 2gd$ $p^2 < \sqrt{4gd}$ $p^2 > 4gd$ $p > 4gd$

Two bolted plates under tension with alternative arrangement of bolt holes are shown in figure $1$ and $2$. The hole diameter, pitch, and gauge length are $d$, $p$ and $g...

Milicevic3306

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Milicevic3306 asked Mar 27, 2018

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116

GATE2016-2-38
A fixed-end beam is subjected to a concentrated load ($P$) as shown in the figure. The beam has two different segments having different plastic moment capacities ($M_P, 2M_P$) as shown. The minimum value of load ($P$) at which the beam would collapse (ultimate load) is $7.5 \: M_P/L$ $5.0 \: M_P/L$ $4.5 \: M_P/L$ $2.5 \: M_P/L$

A fixed-end beam is subjected to a concentrated load ($P$) as shown in the figure. The beam has two different segments having different plastic moment capacities ($M_P, 2...

Milicevic3306

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Milicevic3306 asked Mar 27, 2018

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117

GATE2016-2-39
The activity-on-arrow network of activities for a construction project is shown in the figure. The durations (expressed in days) of the activities are mentioned below in arrows. The critical duration for this construction project is $13$ days $14$ days $15$ days $16$ days

The activity-on-arrow network of activities for a construction project is shown in the figure. The durations (expressed in days) of the activities are mentioned below in ...

Milicevic3306

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Milicevic3306 asked Mar 27, 2018

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118

GATE2016-2-45
A square plate is suspended vertically from one of its edges using a hinge support as shown in figure. A water jet of $20 \: mm$ diameter having a velocity of $10 \: m/s$ strikes the plate at its mid-point, at an angle of $30^{\circ}$ with ... neglect the self-weight of the plate. The force $F$ (expressed in $N$) required to keep the plate in its vertical position is _____________

A square plate is suspended vertically from one of its edges using a hinge support as shown in figure. A water jet of $20 \: mm$ diameter having a velocity of $10 \: m/s$...

Milicevic3306

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119

GATE2016-1-6
Consider the plane truss with load P as shown in the figure. Let the horizontal and vertical reactions at the joint $\textbf{B}$ be $H_B$ and $V_B$, respectively and $V_C$ be the vertical reaction at the joint $\textbf{C}$. Which one of the following sets gives the correct values of $V_B$, $H_B$ ... $V_B=P; \: H_B = P (\cos 60^{\circ}); \: V_C=0$

Consider the plane truss with load P as shown in the figure. Let the horizontal and vertical reactions at the joint $\textbf{B}$ be $H_B$ and $V_B$, respectively and $V_C...

Milicevic3306

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120

GATE2016-1-7
In shear design of an RC beam, other than the allowable shear strength of concrete $( \tau _c)$, there is also an additional check suggested in IS $456-2000$ ... shear stress that comes from accidental loading possibility of failure of concrete by diagonal tension possibility of crushing of concrete by diagonal compression

In shear design of an RC beam, other than the allowable shear strength of concrete $( \tau _c)$, there is also an additional check suggested in IS $456-2000$ with respect...

Milicevic3306

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Milicevic3306 asked Mar 27, 2018