GATE CE 2024 Set 2
GATE 2024 Previous Year
3 hDuration
100Total Marks
65Questions
13Sections
Instructions
General instructions for this test:
- Duration: 3 h. The timer starts as soon as you begin and cannot be paused.
- Total questions: 65 across 13 section(s); maximum marks: 100.
- You are allowed 1 attempt(s) at this test.
- Use the question palette on the right to navigate. Answered questions are highlighted in green; questions marked for review are highlighted in yellow.
- Each question's marking scheme (correct / wrong) is shown on the question card. Unanswered questions receive zero marks.
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No exam-specific instructions were provided for this paper.
Paper Structure
Fluid Mechanics And Hydraulic Machines
Fluid Mechanics And Hydraulic Machines
Q1.
numerical
+1 / 0
A 2 m wide rectangular channel is carrying a discharge of 30 m^(3)/s at a bed slope of 1 in 300. Assuming the energy correction factor as 1.1 and acceleration due to gravity as 10 m/s^(2), the critical depth of flow (in meters) is __________ (rounded off to 2 decimal places).
Q2.
mcq single
+2 / 0.83
A round-bottom triangular lined canal is to be laid at a slope of 1 in 1500, to carry a discharge of 25 m^(3)/s. The side slopes of the canal cross-section are to be kept at 1.25H : 1V. If Manning’s roughness coefficient is 0.013, the flow depth (in meters) will be in the range of
Q3.
mcq single
+1 / 0.33
The following figure shows a plot between shear stress and velocity gradient for materials/fluids P, Q, R, S, and T.
Which one of the following options is CORRECT?
Which one of the following options is CORRECT?
Q4.
numerical
+2 / 0
A 500 m long water distribution pipeline P with diameter 1.0 m, is used to convey 0.1 m^(3)/s of flow. A new pipeline Q, with the same length and flow rate, is to replace P. The friction factors for P and Q are 0.04 and 0.01, respectively. The diameter of the pipeline Q (in meters) is ______________ (*rounded off to 2 decimal places*).
Q5.
mcq single
+2 / 0.83
A hypothetical multimedia filter, consisting of anthracite particles (specific gravity: 1.50), silica sand (specific gravity: 2.60), and ilmenite sand (specific gravity: 4.20), is to be designed for treating water/wastewater. After backwashing, the particles should settle forming three layers: coarse anthracite particles at the top of the bed, silica sand in the middle, and small ilmenite sand particles at the bottom of the bed.
Assume
(i) Slow discrete settling (Stoke’s law is applicable)
(ii) All particles are spherical
(iii) Diameter of silica sand particles is 0.20 mm
The CORRECT option fulfilling the diameter requirements for this filter media is
Q6.
numerical
+2 / 0
A 2 m × 1.5 m tank of 6 m height is provided with a 100 mm diameter orifice at the center of its base. The orifice is plugged and the tank is filled up to 5 m height. Consider the average value of discharge coefficient as 0.6 and acceleration due to gravity (g) as 10 m/s^(2). After unplugging the orifice, the time (in seconds) taken for the water level to drop from 5 m to 3.5 m under free discharge condition is ______________ (*rounded off to 2 decimal places*).
Q7.
numerical
+2 / 0
A rectangular channel is 4.0 m wide and carries a discharge of 2.0 m^(3)/s with a depth of 0.4 m. The channel transitions to a maximum width contraction at a downstream location, without influencing the upstream flow conditions. The width (in meters) at the maximum contraction is ______________ (*rounded off to 2 decimal places*).
Geotechnical Engineering
Geotechnical Engineering
Q1.
mcq single
+2 / 0.83
Consider the statements P and Q related to the analysis/design of retaining walls.
**P**: When a rough retaining wall moves toward the backfill, the wall friction force/resistance mobilizes in upward direction along the wall.**
Q**: Most of the earth pressure theories calculate the earth pressure due to surcharge by neglecting the actual distribution of stresses due to surcharge.
Which one of the following options is CORRECT?
Q2.
numerical
+2 / 0
A drained triaxial test was conducted on a saturated sand specimen using a stress-path triaxial testing system. The specimen failed when the axial stress reached a value of 100 kN/m^(2) from an initial confining pressure of 300 kN/m^(2).
The angle of shearing plane (in degrees) with respect to horizontal is ______________ (rounded off to the nearest integer).
Q3.
numerical
+2 / 0
A homogeneous earth dam has a maximum water head difference of 15 m between the upstream and downstream sides. A flownet was drawn with the number of potential drops as 10 and the average length of the element as 3 m. Specific gravity of the soil is 2.65. For a factor of safety of 2.0 against piping failure, void ratio of the soil is __________ (rounded off to 2 decimal places).
Q4.
numerical
+1 / 0
A reinforced concrete pile of 10 m length and 0.7 m diameter is embedded in a saturated pure clay with unit cohesion of 50 kPa. If the adhesion factor is 0.5, the net ultimate uplift pullout capacity (in kN) of the pile is ____________ (rounded off to the nearest integer).
Q5.
mcq single
+1 / 0.33
The contact pressure distribution shown in the figure belongs to a
Q6.
mcq single
+1 / 0.33
Which one of the following saturated fine-grained soils can attain a negative Skempton’s pore pressure coefficient (A)?
Q7.
mcq multi
+2 / 0
Consider the statements P, Q, and R.
**P:** Compacted fine-grained soils with flocculated structure have isotropic permeability.
**Q:** Phreatic surface/line is the line along which the pore water pressure is always maximum.
**R:** The piping phenomenon occurring below the dam foundation is typically known as blowout piping.
Which of the following option(s) is/are CORRECT?
Q8.
numerical
+2 / 0
The in-situ percentage of voids of a sand deposit is 50%. The maximum and minimum densities of sand determined from the laboratory tests are 1.8 g/cm^(3) and 1.3 g/cm^(3), respectively. Assume the specific gravity of sand as 2.7.
The relative density index of the in-situ sand is ______________ (rounded off to 2 decimal places).
Construction Material And Management
Construction Material And Management
Q1.
numerical
+2 / 0
The table shows the activities and their durations and dependencies in a project.ActivityDuration (Days)Depends onA8-B4AC4BD4C, LF4AG4FH6G, LK10AL6F, KThe total duration (in days) of the project is __________ (in integer).
Q2.
mcq single
+1 / 0.33
Consider the statements P and Q.
**P:** In a Pure project organization, the project manager maintains complete authority and has maximum control over the project.
**Q:** A Matrix organization structure facilitates quick response to changes, conflicts, and project needs.
Which one of the following options is CORRECT?
Q3.
mcq single
+2 / 0.83
A critical activity in a project is estimated to take 15 days to complete at a cost of Rs. 30,000. The activity can be expedited to complete in 12 days by spending a total amount of Rs. 54,000. Consider the statements P and Q.
P: It is economically advisable to complete the activity early by crashing, if the indirect cost of the project is Rs. 8,500 per day.
Q: It is economically advisable to complete the activity early by crashing, if the indirect cost of the project is Rs. 10,000 per day.
Which one of the following options is CORRECT?
Q4.
mcq multi
+2 / 0
In the context of pavement material characterization, the CORRECT statement(s) is/are
Q5.
mcq single
+1 / 0.33
Consider the following data for a project of 300 days duration.
Budgeted Cost of Work Scheduled (BCWS) = Rs. 200
Budgeted Cost of Work Performed (BCWP) = Rs. 150
Actual Cost of Work Performed (ACWP) = Rs. 190
The ‘schedule variance’ for the project is
Transportation Engineering
Transportation Engineering
Q1.
mcq single
+2 / 0.83
The consolidated data of a spot speed study for a certain stretch of a highway is given in the table.Speed range (kmph)Number of observations0 - 10710 - 203120 - 307630 - 4012940 - 5010450 - 607860 - 702970 - 802480 - 901390 - 1009The "upper speed limit" (in kmph) for the traffic sign is
Q2.
mcq single
+1 / 0.33
Various stresses in jointed plain concrete pavement with slab size of 3.5 m × 4.5 m are denoted as follows:
Wheel load stress at interior = $S_{wl}^i$
Wheel load stress at edge = $S_{wl}^e$
Wheel load stress at corner = $S_{wl}^c$
Warping stress at interior = $S_t^i$
Warping stress at edge = $S_t^e$
Warping stress at corner = $S_t^c$
Frictional stress between slab and supporting layer = $S_f$
The critical stress combination in the concrete slab during a summer midnight is
Q3.
numerical
+2 / 0
A vertical summit curve on a freight corridor is formed at the intersection of two gradients, +3.0% and −5.0%.
Assume the following:
- Only large-sized trucks are allowed on this corridor
- Design speed = 80 kmph
- Eye height of truck drivers above the road surface = 2.30 m
- Height of object above the road surface for which trucks need to stop = 0.35 m
- Total reaction time of the truck drivers = 2.0 s
- Coefficient of longitudinal friction of the road = 0.36
- Stopping sight distance gets compensated on the gradient
The design length of the summit curve (in meters) to accommodate the stopping sight distance is _____ (rounded off to 2 decimal places).
Q4.
mcq single
+1 / 0.33
In general, the outer edge is raised above the inner edge in horizontal curves for
Q5.
numerical
+2 / 0
A horizontal curve of radius 1080 m (with transition curves on either side) in a Broad Gauge railway track is designed and constructed for an equilibrium speed of 70 kmph. However, a few years after construction, the Railway Authorities decided to run express trains on this track. The maximum allowable cant deficiency is 10 cm.
The maximum restricted speed (in kmph) of the express trains running on this track is _______________ (rounded off to the nearest integer).
Q6.
mcq single
+1 / 0.33
The longitudinal sections of a runway have gradients as shown in the table.
End to end for sections of runway (m)Gradient (%)
0 to 200+1.0
200 to 600−1.0
600 to 1200+0.8
1200 to 1600+0.2
1600 to 2000−0.5
Consider the reduced level (RL) at the starting point of the runway as 100 m.
The effective gradient of the runway is
Structural Analysis
Structural Analysis
Q1.
numerical
+2 / 0
The horizontal beam PQRS shown in the figure has a fixed support at point P, an internal hinge at point Q, and a pin support at point R. A concentrated vertically downward load (V) of 10 kN can act at any point over the entire length of the beam.
The maximum magnitude of the moment reaction (in kN.m) that can act at the support P due to V is ________________ (in integer).
The maximum magnitude of the moment reaction (in kN.m) that can act at the support P due to V is ________________ (in integer).
Q2.
mcq single
+1 / 0.33
The structural design method that DOES NOT take into account the safety factors on the design loads is
Hydrology
Hydrology
Q1.
numerical
+2 / 0
A storm with a recorded precipitation of 11.0 cm, as shown in the table, produced a direct run-off of 6.0 cm.
Time from start (hours)
1
2
3
4
5
6
7
8
Recorded cumulative precipitation (cm)
0.5
1.5
3.1
5.5
7.3
8.9
10.2
11.0
The Ø-index of this storm is ______________ cm/hr (*rounded off to 2 decimal places*).
Geomatics Engineering Or Surveying
Geomatics Engineering Or Surveying
Q1.
numerical
+2 / 0
A child walks on a level surface from point P to point Q at a bearing of 30°, from point Q to point R at a bearing of 90° and then directly returns to the starting point P at a bearing of 240°. The straight-line paths PQ and QR are 4 m each. Assuming that all bearings are measured from the magnetic north in degrees, the straight-line path length RP (in meters) is ______________ (rounded off to the nearest integer).
Q2.
mcq single
+1 / 0.33
What is the CORRECT match between the survey instruments/parts of instruments shown in the table and the operations carried out with them?
Instruments/Parts of instrumentsOperations
P - Bubble tubei - Tacheometry
Q - Plumb bobii - Minor movements
R - Tangent screwiii - Centering
S - Stadia cross-wireiv - Levelling
Q3.
mcq single
+1 / 0.33
To finalize the direction of a survey, four surveyors set up a theodolite at a station P and performed all the temporary adjustments. From the station P, each of the surveyors observed the bearing to a tower located at station Q with the same instrument without shifting it. The bearings observed by the surveyors are 30° 30' 00", 30° 29' 40", 30° 30' 20" and 30° 31' 20". Assuming that each measurement is taken with equal precision, the most probable value of the bearing is
Q4.
numerical
+2 / 0
Differential levelling is carried out from point P (BM: +200.000 m) to point R. The readings taken are given in the table.
Reduced Level (in meters) of the point R is ____ (rounded off to 3 decimal places).
Reduced Level (in meters) of the point R is ____ (rounded off to 3 decimal places).
Q5.
mcq single
+1 / 0.33
For a reconnaissance survey, it is necessary to obtain vertical aerial photographs of a terrain at an average scale of 1: 13000 using a camera. If the permissible flying height is assumed as 3000 m above a datum and the average terrain elevation is 1050 m above the datum, the required focal length (in mm) of the camera is
Engineering Mathematics
Engineering Mathematics
Q1.
mcq single
+1 / 0.33
The second derivative of a function $f$ is computed using the fourth-order Central Divided Difference method with a step length $h$. The CORRECT expression for the second derivative is
Q2.
mcq multi
+2 / 0
Three vectors $\overrightarrow{p}$, $\overrightarrow{q}$, and $\overrightarrow{r}$ are given as
$ \overrightarrow{p} = \hat{i} + \hat{j} + \hat{k}$
$ \overrightarrow{q} = \hat{i} + 2\hat{j} + 3\hat{k}$
$ \overrightarrow{r} = 2\hat{i} + 3\hat{j} + 4\hat{k}$
Which of the following is/are CORRECT?
Q3.
mcq single
+2 / 0.83
In a sample of 100 heart patients, each patient has 80% chance of having a heart attack without medicine X. It is clinically known that medicine X reduces the probability of having a heart attack by 50%. Medicine X is taken by 50 of these 100 patients. The probability that a randomly selected patient, out of the 100 patients, takes medicine X and has a heart attack is
Q4.
numerical
+2 / 0
Consider two matrices $A = \begin{bmatrix}2 & 1 & 4 \\ 1 & 0 & 3\end{bmatrix}$ and $B = \begin{bmatrix}-1 & 0 \\ 2 & 3 \\ 1 & 4 \end{bmatrix}$.
The determinant of the matrix $AB$ is __________ (in integer).
Q5.
mcq single
+1 / 0.33
The statements P and Q are related to matrices **A** and **B**, which are conformable for both addition and multiplication.
P: $(A + B)^T = A^T + B^T$
Q: $(AB)^T = B^T A^T$
Which one of the following options is CORRECT?
Q6.
mcq single
+1 / 0.33
**A partial differential equation**
**$$\frac{\partial^2 T}{\partial x^2} + \frac{\partial^2 T}{\partial y^2} = 0$$**
is defined for the two-dimensional field $T: T(x, y)$, inside a planar square domain of size 2 m × 2 m. Three boundary edges of the square domain are maintained at value $T = 50$, whereas the fourth boundary edge is maintained at $T = 100$.
The value of $T$ at the center of the domain is
Q7.
mcq single
+1 / 0.33
Consider two Ordinary Differential Equations (ODEs):
P: $ \dfrac{dy}{dx} = \dfrac{x^4 + 3x^2 y^2 + 2y^4}{x^3 y} $
Q: $ \dfrac{dy}{dx} = -\dfrac{y^2}{x^2} $
Which one of the following options is CORRECT?
Q8.
numerical
+2 / 0
The expression for computing the effective interest rate $(i_{eff})$ using continuous compounding for a nominal interest rate of 5% is
$i_{eff} = \lim\limits_{m \to \infty} \left(1 + \frac{0.05}{m}\right)^m - 1$
The effective interest rate (in percentage) is ___________ (rounded off to 2 decimal places).
Q9.
mcq single
+1 / 0.33
The function $f(x) = x^3 - 27x + 4$, $1 \leq x \leq 6$ has
General Aptitude
General Aptitude
Q1.
mcq single
+2 / 0.83
In the given text, the blanks are numbered (i)–(iv). Select the best match for all the blanks.
Yoko Roi stands _____ (i) _____ as an author for standing _____ (ii) _____ as an honorary fellow, after she stood _____ (iii) _____ her writings that stand _____ (iv) _____ the freedom of speech.
Q2.
mcq single
+2 / 0.83
Visualize a cube that is held with one of the four body diagonals aligned to the vertical axis. Rotate the cube about this axis such that its view remains unchanged. The magnitude of the minimum angle of rotation is
Q3.
mcq single
+1 / 0.33
A student was supposed to **multiply** a positive real number $p$ with another positive real number $q$. Instead, the student **divided** $p$ by $q$. If the percentage error in the student’s answer is 80%, the value of $q$ is
Q4.
mcq single
+2 / 0.83
The plot below shows the relationship between the mortality risk of cardiovascular disease and the number of steps a person walks per day. Based on the data, which one of the following options is true?
Q5.
mcq single
+2 / 0.83
Seven identical cylindrical chalk-sticks are fitted tightly in a cylindrical container. The figure below shows the arrangement of the chalk-sticks inside the cylinder.
The length of the container is equal to the length of the chalk-sticks. The ratio of the occupied space to the empty space of the container is
The length of the container is equal to the length of the chalk-sticks. The ratio of the occupied space to the empty space of the container is
Q6.
mcq single
+1 / 0.33
If the sum of the first 20 consecutive positive odd numbers is divided by $20^2$, the result is
Q7.
mcq single
+1 / 0.33
The ratio of the number of girls to boys in class VIII is the same as the ratio of the number of boys to girls in class IX. The total number of students (boys and girls) in classes VIII and IX is 450 and 360, respectively. If the number of girls in classes VIII and IX is the same, then the number of girls in each class is
Q8.
mcq single
+1 / 0.33
If '→' denotes increasing order of intensity, then the meaning of the words [drizzle → rain → downpour] is analogous to [ ______ → quarrel → feud].
Which one of the given options is appropriate to fill the blank?
Q9.
mcq single
+2 / 0.83
Five cubes of identical size and another smaller cube are assembled as shown in Figure A. If viewed from direction X, the planar image of the assembly appears as Figure B.
If viewed from direction Y, the planar image of the assembly (Figure A) will appear as
If viewed from direction Y, the planar image of the assembly (Figure A) will appear as
Q10.
mcq single
+1 / 0.33
**Statements:**
1. All heroes are winners.
2. All winners are lucky people.
**Inferences:**
I. All lucky people are heroes.
II. Some lucky people are heroes.
III. Some winners are heroes.
Which of the above inferences can be logically deduced from statements 1 and 2?
Strength Of Materials Or Solid Mechanics
Strength Of Materials Or Solid Mechanics
Q1.
mcq single
+2 / 0.83
A homogeneous, prismatic, linearly elastic steel bar fixed at both the ends has a slenderness ratio (l/r) of 105, where l is the bar length and r is the radius of gyration. The coefficient of thermal expansion of steel is $12 \times 10^{-6}$ $^{\circ}$C. Consider the effective length of the steel bar as $0.5l$ and neglect the self-weight of the bar.
The differential increase in temperature (rounded off to the nearest integer) at which the bar buckles is
Q2.
numerical
+2 / 0
For the 6m long horizontal cantilever beam PQR shown in the figure, Q is the midpoint. Segment PQ of the beam has flexural rigidity $EI = 2 \times 10^5$ kN. $m^2$ whereas the segment QR has infinite flexural rigidity. Segment QR is subjected to uniformly distributed, vertically downward load of 5 kN/m.
The magnitude of the vertical displacement (in mm) at point Q is _______ (rounded off to 3 decimal places).
The magnitude of the vertical displacement (in mm) at point Q is _______ (rounded off to 3 decimal places).
Q3.
mcq single
+2 / 0.83
A linearly elastic beam of length 2l with flexural rigidity EI has negligible mass. A massless spring with a spring constant k and a rigid block of mass m are attached to the beam as shown in the figure.
The natural frequency of this system is
The natural frequency of this system is
Q4.
numerical
+1 / 0
The steel angle section shown in the figure has elastic section modulus of 150.92 cm^(3) about the horizontal X−X axis, which passes through the centroid of the section.
The shape factor of the section is ______ (rounded off to 2 decimal places).
The shape factor of the section is ______ (rounded off to 2 decimal places).
Q5.
mcq single
+1 / 0.33
For a thin-walled section shown in the figure, points P, Q, and R are located on the major bending axis X−X of the section. Point Q is located on the web whereas point S is located at the intersection of the web and the top flange of the section.
Qualitatively, the shear center of the section lies at
Qualitatively, the shear center of the section lies atEnvironmental Engineering
Environmental Engineering
Q1.
numerical
+2 / 0
A circular settling tank is to be designed for primary treatment of sewage at a flow rate of 10 million liters/day. Assume a detention period of 2.0 hours and surface loading rate of 40000 liters/m^(2)/day. The height (in meters) of the water column in the tank is ______________ (*rounded off to 2 decimal places*).
Q2.
mcq single
+1 / 0.33
Which one of the following products is NOT obtained in anaerobic decomposition of glucose?
Q3.
numerical
+2 / 0
An organic waste is represented as C~240~O~200~H~180~N~5~S~5~.
(Atomic weights: S-32, H-1, C-12, O-16, N-14).
Assume complete conversion of S to SO~2~ while burning.
SO~2~ generated (in grams) per kg of this waste is __________ (rounded off to 1 decimal place).
Q4.
mcq single
+1 / 0.33
What is the CORRECT match between the air pollutants and treatment techniques given in the table?Air pollutantsTreatment techniquesP - NO~2~i - FlaringQ - SO~2~ii - Cyclonic separatorR - COiii - Lime scrubbingS - Particlesiv - NH~3~ injection
Engineering Mechanics
Engineering Mechanics
Q1.
mcq single
+1 / 0.33
A 3 m long, horizontal, rigid, uniform beam PQ has negligible mass. The beam is subjected to a 3 kN concentrated vertically downward force at 1 m from P, as shown in the figure. The beam is resting on vertical linear springs at the ends P and Q. For the spring at the end P, the spring constant $K_P$ = 100 kN/m.
If the beam DOES NOT rotate under the application of the force and displaces only vertically, the value of the spring constant $K_Q$ (in kN/m) for the spring at the end Q is
If the beam DOES NOT rotate under the application of the force and displaces only vertically, the value of the spring constant $K_Q$ (in kN/m) for the spring at the end Q isReinforced Cement Concrete
Reinforced Cement Concrete
Q1.
numerical
+2 / 0
A concrete column section of size 300 mm $\times$ 500 mm as shown in the figure is subjected to both axial compression and bending along the major axis. The depth of the neutral axis ($x_u$) is 1.1 times the depth of the column, as shown.
The maximum compressive strain ($\epsilon_c$) at highly compressive extreme fiber in concrete, where there is no tension in the section, is _______________ $\times 10^{-3}$ (rounded off to 2 decimal places).
The maximum compressive strain ($\epsilon_c$) at highly compressive extreme fiber in concrete, where there is no tension in the section, is _______________ $\times 10^{-3}$ (rounded off to 2 decimal places).
Q2.
mcq single
+1 / 0.33
A simply supported, uniformly loaded, two-way slab panel is torsionally unrestrained. The effective span lengths along the short span (x) and long span (y) directions of the panel are $l_{x}$ and $l_{y}$, respectively. The design moments for the reinforcements along the x and y directions are $M_{ux}$ and $M_{uy}$, respectively. By using Rankine-Grashoff method, the ratio $M_{ux}/M_{uy}$ is proportional to