Civil Engineering Gate Yearwise
Civil Engineering Gate 2022 Set-I Questions
Ques 1Aptitude
You should _________ when to say _________.
a. no / no
b. no / know
c. know / know
d. know / no
D is the correct answer.
Ques 2Aptitude
Two straight lines pass through the origin (π₯0,y0) = (0,0). One of them passes through the point (π₯1,y1) = (1,3) and the other passes through the point (π₯2,y2) = (1,2).
What is the area enclosed between the straight lines in the interval [0, 1] on the π₯-axis?
a. 0.5
b. 1.0
c. 1.5
d. 2.0
a is the correct answer.
Ques 3Aptitude
If
π βΆ π = 1 βΆ 2
π βΆ π = 4 βΆ 3
π βΆ π = 4 βΆ 5
and π’ is 50% more than π , what is the ratio π βΆ π’?
a. 2:15
b. 16:15
c. 1:5
d. 16:45
d is the correct answer.
Ques 4Aptitude
Given the statements:
P is the sister of Q.
Q is the husband of R.
R is the mother of S.
T is the husband of P.
Based on the above information, T is ______ of S
a. the grandfather
b. an uncle
c. the father
d. a brother
b is the correct answer.
Ques 5Aptitude
In the following diagram, the point R is the center of the circle. The lines PQ and ZV are tangential to the circle. The relation among the areas of the squares, PXWR, RUVZ and SPQT is
a. Area of SPQT = Area of RUVZ = Area of PXWR
b. Area of SPQT = Area of PXWR - Area of RUVZ
c. Area of PXWR = Area of SPQT - Area of RUVZ
d. Area of PXWR = Area of RUVZ - Area of SPQT
b is the correct answer.
Ques 6Aptitude
Healthy eating is a critical component of healthy aging. When should one start eating healthy? It turns out that it is never too early. For example, babies who start eating healthy in the first year are more likely to have better overall health as they get older.
Which one of the following is the CORRECT logical inference based on the information in the above passage?
a. Healthy eating is important for those with good health conditions, but not for others
b. Eating healthy can be started at any age, earlier the better
c. Eating healthy and better overall health are more correlated at a young age, but not older age
d. Healthy eating is more important for adults than kids
b is the correct answer.
Ques 7Aptitude
P invested βΉ 5000 per month for 6 months of a year and Q invested βΉ π₯ per month for 8 months of the year in a partnership business. The profit is shared in proportion to the total investment made in that year. If at the end of that investment year, Q receives (4/9) of the total profit, what is the value of π₯ (in βΉ)?
a. 2500
b. 3000
c. 4687
d. 8437
b is the correct answer.
Ques 8Aptitude
The above frequency chart shows the frequency distribution of marks obtained by a set of students in an exam. From the data presented above, which one of the following is CORRECT?
a. mean > mode > median
b. mode > median > mean
c. mode > mean > median
d. median > mode > mean
b is the correct answer.
Ques 9Aptitude
In the square grid shown on the left, a person standing at P2 position is required to move to P5 position. The only movement allowed for a step involves, βtwo moves along one direction followed by one move in a perpendicular directionβ. The permissible directions for movement are shown as dotted arrows in the right. For example, a person at a given position Y can move only to the positions marked X on the right. Without occupying any of the shaded squares at the end of each step, the minimum number of steps required to go from P2 to P5 is
a. 4
b. 5
c. 6
d. 7
b is the correct answer.
Ques 10Aptitude
Consider a cube made by folding a single sheet of paper of appropriate shape.The interior faces of the cube are all blank. However, the exterior faces that are not visible in the above view may not be blank.
Which one of the following represents a possible unfolding of the cube?
a. 
b. 
c. 
d. 
b is the correct answer.
Ques 11Construction Materials
Which of the following equations is correct for the Pozzolanic reaction?
a. Ca(OH)2 + Reactive Superplasticiser + H2O → C-S-H
b. Ca(OH)2 + Reactive Silicon dioxide + H2O → C-S-H
c. Ca(OH)2 + Reactive Sulphates + H2O → C-S-H
d. Ca(OH)2 + Reactive Sulphur + H2O → C-S-H
b is the correct answer.
Ques 12Environmental Engineering
The total hardness in raw water is 500 milligram per liter as CaCO3. The total hardness of this raw water, expressed in milligram equivalent per liter, is
(Consider the atomic weights of Ca, C, and O as 40 g/mol, 12 g/mol, and 16 g/mol, respectively.)
a. 10
b. 100
c. 1
d. 5
a is the correct answer.
Ques 13Environmental Engineering
For wastewater coming from a wood pulping industry, Chemical Oxygen Demand (COD) and 5-day Biochemical Oxygen Demand (BOD5) were determined. For this wastewater, which of the following statement(s) is/are correct?
a. COD > BOD5
b. COD β BOD5
c. COD < BOD5
d. COD = BOD5
a,b is the correct answer.
Ques 14Environmental Engineering
Which of the following process(es) can be used for conversion of salt water into fresh water?
a. Microfiltration
b. Electrodialysis
c. Ultrafiltration
d. Reverse osmosis
b,d is the correct answer.
Ques 15Fluid Mechanics
With respect to fluid flow, match the following in Column X with Column Y:
| Column X | Column Y |
|---|---|
| (P) Viscosity | (I) Mach number |
| (Q) Gravity | (II) Reynolds number |
| (R) Compressibility | (III) Euler number |
| (S) Pressure | (IV) Froude number |
Which one of the following combinations is correct?
a. (P) β (II), (Q) β (IV), (R) β (I), (S) β (III)
b. (P) β (III), (Q) β (IV), (R) β (I), (S) β (II)
c. (P) β (IV), (Q) β (II), (R) β (I), (S) β (III)
d. (P) β (II), (Q) β (IV), (R) β (III), (S) β (I)
a is the correct answer.
Ques 16Highway Engineering
A horizontal curve is to be designed in a region with limited space. Which of the following measure(s) can be used to decrease the radius of curvature?
a. Decrease the design speed.
b. Increase the super elevation.
c. Increase the design speed.
d. Restrict vehicles with higher weight from using the facility.
a is the correct answer.
Ques 17Mathematics
Consider the following expression:
sin (y+it)+ cos(y-it)
where z, y, and t are variables, and i = √-1 is a complex number. The partial differential equation derived from the above expression is
a. ∂2z / ∂t2 + ∂2z / ∂y2 =0
b. ∂2z / ∂t2 - ∂2z / ∂y2 =0
c. ∂z / ∂t -i ∂z / ∂y =0
d. ∂z / ∂t +i ∂z / ∂y =0
a is the correct answer.
Ques 18Mathematics
For the equation
d3y/dx3
+x(
dy/ dx
)3/2
+x2y
=
0
the correct description is
a. an ordinary differential equation of order 3 and degree 2.
b. an ordinary differential equation of order 3 and degree 3.
c. an ordinary differential equation of order 2 and degree 3.
d. an ordinary differential equation of order 3 and degree 3/2.
a is the correct answer.
Ques 19Reinforced Concrete Structures
In the context of elastic theory of reinforced concrete, the modular ratio is defined as the ratio of
a. Youngβs modulus of elasticity of reinforcement material to Youngβs modulus of elasticity of concrete.
b. Youngβs modulus of elasticity of concrete to Youngβs modulus of elasticity of reinforcement material.
c. shear modulus of reinforcement material to the shear modulus of concrete.
d. Youngβs modulus of elasticity of reinforcement material to the shear modulus of concrete
a is the correct answer.
Ques 20Serving
An aerial photograph is taken from a flight at a height of 3.5 km above mean sea level, using a camera of focal length 152 mm. If the average ground elevation is 460 m above mean sea level, then the scale of the photograph is
a. 1 : 20000
b. 1 : 20
c. 1 : 100000
d. 1 : 2800
a is the correct answer.
Ques 21Serving
A line between stations P and Q laid on a slope of 1 in 5 was measured as 350 m using a 50 m tape. The tape is known to be short by 0.1 m. The corrected horizontal length (in m) of the line PQ will be
a. 342.52
b. 349.30
c. 356.20
d. 350.70
a is the correct answer.
Ques 22Soil Mechanics
Four different soils are classified as CH, ML, SP, and SW, as per the Unified Soil Classification System. Which one of the following options correctly represents their arrangement in the decreasing order of hydraulic conductivity?
a. SW, SP, ML, CH
b. CH, ML, SP, SW
c. SP, SW, CH, ML
d. ML, SP, CH, SW
a is the correct answer.
Ques 23Soil Mechanics
Let π'v and π'h denote the effective vertical stress and effective horizontal stress, respectively. Which one of the following conditions must be satisfied for a soil element to reach the failure state under Rankineβs passive earth pressure condition?
a. π'v < π'h
b. π'v > π'h
c. π'v = π'h
d. π'v + π'h = 0
a is the correct answer.
Ques 24Soil Mechanics
Let ψ represent soil suction head and K represents hydraulic conductivity of the soil. If the soil moisture content θ increases, which one of the following statements is TRUE?
a. ψ decreases and K increases.
b. ψ increases and K decreases.
c. Both ψ and K decrease.
d. Both ψ and K increase.
a is the correct answer.
Ques 25Soil Mechanics
A rectangular channel with Gradually Varied Flow (GVF) has a changing bed slope. If the change is from a steeper slope to a steep slope, the resulting GVF profile is
a. S3
b. S1
c. S2
d. either S1 or S2 , depending on the magnitude of the slopes
a is the correct answer.
Ques 26Strength of Materials
The hoop stress at a point on the surface of a thin cylindrical pressure vessel is computed to be 30.0 MPa. The value of maximum shear stress at this point is
a. 7.5 MPa
b. 15.0 MPa
c. 30.0 MPa
d. 22.5 MPa
a is the correct answer.
Ques 27Strength of Materials
Consider the cross-section of a beam made up of thin uniform elements having thickness t(t<< a) shown in the figure. The (x, y) coordinates of the points along the center-line of the cross-section are given in the figure.
a. x = 0, y = 3a
b. x = 2a, y = 3a
c. x = -a, y = 2a
d. x = -2a, y = a
a is the correct answer.