Civil Engineering Gate Yearwise
Civil Engineering Gate 2017 Set-I Questions
Ques 1Aptitude
Consider the following sentences:
All benches are beds.
No bed is a bulb. Some bulbs are lamps.
Which of the following can be inferred?
i. Some beds are lamps.
ii. Some lamps are beds.
a. Only i
b. Only ii
c. Both i and ii
d. Neither i nor ii
d is the correct answer.
Ques 2Aptitude
The following sequence of numbers is arranged in increasing order:
1,x,x,x,y,y,19,16,18 Given that the mean and median are equal, and are also equal to twice the mode, the value of y is
a. 5
b. 7
c. 6
d. 8
d is the correct answer.
Ques 3Aptitude
The bacteria in milk are destroyed when it _________ heated to 80 degree Celsius.
a. would be
b. will be
c. is
d. was
c is the correct answer.
Ques 4Aptitude
If the radius of a right circular cone is increased by 50%, its volume increases by
a. 75%
b. 100%
c. 125%
d. 237.5%
c is the correct answer.
Ques 5Aptitude
__________ with someone else’s email account is now very serious offence.
a. Involving
b. Assisting
c. Tampering
d. Incubating
c is the correct answer.
Ques 6Aptitude
Consider the following statements.
i. The number of beds made by carpenter C2 is exactly the same as the same as the number of tables made by carpenter C3.
ii. The total number of chairs made by all carpenters is less than the total number of tables.
Which one of the following is true?
a. Only i
b. Only ii
c. Both i and ii
d. Neither i nor ii
c is the correct answer.
Ques 7Aptitude
The last digit of (2171)7+(2172)9+(2173)11+(2174)13 is
a. 2
b. 4
c. 6
d. 8
b is the correct answer.
Ques 8Aptitude
Two machines M1 and M2 are able to execute any of four jobs P, Q, R and S. The machines can perform one job on one object at a time. Jobs P, Q, R and S take 30 minutes, 20 minutes, 60 minutes and 15 minutes each respectively. There are 10 objects each requiring exactly 1 job. Job P is to be performed on 2 objects. Job Q on 3 objects. Job R on 1 object and Job S on 4 objects. What is the minimum time needed to complete all the jobs?
a. 2 hours
b. 2.5 hours
c. 3 hours
d. 3.5 hours
a is the correct answer.
Ques 9Aptitude
. The old concert hall was demolished because of fears that the foundation would be affected by the construction tried to mitigate the impact of pressurized air pockets created by the excavation of large amounts of soil. But even with these safeguards, it was feared that the soil below the concert hall would not be stable.
From this, one can infer that
a. The foundations of old buildings create pressurized air pockets underground, which are difficult to handle during metro construction.
b. Metro construction has to be done carefully considering its impact on the foundations of existing buildings.
c. Old buildings in an area form an impossible hurdle to metro construction in that area.
d. Pressurized air can be used to excavate large amounts of soil from underground areas.
b is the correct answer.
Ques 10Environmental Engineering
The wastewater form a city, containing a high concentration of biodegradable organics, is being steadily discharged into a flowing river at a location S. If the rate of aeration of the river water is lower than the rate of degradation of the organics, then the dissolved oxygen of the river water
a. is lowest at the locations S
b. is lowest at a point upstream of the location S.
c. remains constant all along the length of the river.
d. is lowest at a point downstream of the location S.
d is the correct answer.
Ques 11Geotechnical Engineering
A uniformly distributed line load of 500 kN/m is acting on the ground surface. Based on Boussinesq’s theory, the ratio of vertical stress at a depth 2 m to that at 4 m, right below the line of loading, is
a. 0.5
b. 0.25
c. 2.0
d. 4.0
c is the correct answer.
Ques 12Geotechnical Engineering
A soil sample is subjected to a hydrostatic pressure σ, The Mohr circle for any point in the soil sample would be
a. a circle of radius σ and center at the origin
b. a circle of radius σ and center at a distance from the origin
c. a point at a distance σ from the origin
d. a circle of diameter σ and center at the origin
c is the correct answer.
Ques 13Mathematics
The number of parameters in the univariate exponential and Gaussian distributions, respectively, are
a. 2 and 2
b. 1 and 2
c. 2 and 1
d. 1 and 1
b is the correct answer.
Ques 14Structural Engineering
An elastic bar of length L, uniform cross sectional area A, coefficient of thermal expansion,α, and Young’s modulus E is fixed at the two ends. The temperature of the bar is increased by T, resulting in an axial stress σ. Keeping all other parameters unchanged, if the length of the bar is doubled, the axial stress would be
a. σ
b. 2σ
c. 0.5σ
d. 0.25ασ
a is the correct answer.
Ques 15Transportation Engineering
A runway is being constructed in a new airport as per the International Civil Aviation Organization (ICAO) recommendations. The elevation and the airport reference temperature of this airport are 535 m above the mean sea level and 22.65°C, respectively. Consider the effective gradient of runway as 1%. The length of runway required for a design-aircraft under the standard conditions is 2000 m. Within the framework of applying sequential corrections as per the ICAO recommendations, the length of runway corrected for the temperature is
a. 2223 m
b. 2250 m
c. 2500 m
d. 2750 m
c is the correct answer.
Ques 16Water Resources
For a steady incompressible laminar flow between two infinite parallel stationary plates, the shear stress variation is
a. linear with zero value at the plates
b. linear with zero value at the center
c. quadratic with zero value at the Plates
d. quadratic with zero value at the centre
b is the correct answer.