Civil Engineering GATE 2014 Set-2 Questions with Answer

Ques 40 Geotechnical Engineering


Water is flowing at a steady rate through a homogeneous and saturated horizontal soil strip of 10 m length. The strip is being subjected to a constant water head (H) of 5 m at the beginning and 1 m at the end. If the governing equation of flow in the soil strip is (d2H / dx2) = 0 (where x is the distance along the soil strip), the value of H (in m) at the middle of the strip is ______.


3 is the correct answer.


Ques 41 Geotechnical Engineering


An infinitely long slope is made up of a c-φ soil having the properties: cohesion (c) = 20 kPa, angle of inclination = 40°, critical height of the slope = 5 m, and dry unit weight (γd) = 16 kN/m3. To maintain the limiting equilibrium, the angle of internal friction of the soil (in degrees) is ______.


21 to 23 is the correct answer.


Ques 42 Geotechnical Engineering


Group I enlists in-situ field tests carried out for soil exploration, while Group II provides a list of parameters for sub-soil strength characterization. Match the type of tests with the characterization parameters.
Group I
P. Pressuremeter Test (PMT)
Q. Static Cone Penetration Test (SCPT)
R. Standard Penetration Test (SPT)
S. Vane Shear Test (VST)
Group II
1. Menard's modulus (Em)
2. Number of blows (N)
3. Skin resistance (fc)
4. Undrained cohesion (cu)

A

P-1, Q-3, R-2, S-4

B

P-1, Q-2, R-3, S-4

C

P-2, Q-3, R-4, S-1

D

P-4, Q-1, R-2, S-3



Ques 43 Geotechnical Engineering


A single vertical friction pile of diameter 500 mm and length 20 m is subjected to a vertical compressive load. The pile is embedded in a homogeneous sandy stratum where: angle of internal friction (φ) = 30°, dry unit weight (γd) = 20 kN/m3, angle of wall friction (δ) = 2φ/3, and coefficient of lateral earth pressure (K) = 2.7. Considering the bearing capacity factor (Nq) = 25, the ultimate bearing capacity of the pile (in kN) is ______.


6150 to 6190 is the correct answer.


Ques 44 Geotechnical Engineering


A circular raft foundation of 20 m diameter and 1.6 m thick is provided for a tank that applies a bearing pressure of 110 kPa on sandy soil with Young's modulus, E's = 30 MPa and Poisson's ratio, νs = 0.3. The raft is made of concrete (Ec = 30 GPa and νc = 0.15). Considering the raft as rigid, the elastic settlement (in mm) is ______.


50 to 52 is the correct answer.


Ques 45 Hydrology


Group I lists a few devices while Group II provides information about their uses. Match the devices with their corresponding use.
Group I
P. Anemometer
Q. Hygrometer
R. Pitot Tube
S. Tensiometer
Group II
1. Capillary potential of soil water
2. Fluid velocity at a specific point in the flow stream
3. Water vapour content of air
4. Wind speed

A

P-1; Q-2; R-3; S-4

B

P-2; Q-1; R-4; S-3

C

P-4; Q-2; R-1; S-3

D

P-4; Q-3; R-2; S-1



Ques 46 Hydrology


An isolated 3-h rainfall event on a small catchment produces a hydrograph peak and point of inflection on the falling limb of the hydrograph at 7 hours and 8.5 hours respectively, after the start of the rainfall. Assuming, no losses and no base flow contribution, the time of concentration (in hours) for this catchment is approximately

A

8.5

B

7.0

C

6.5

D

5.5



Ques 47 Hydrology


The Muskingum model of routing a flood through a stream reach is expressed as O2 = K0I2 + K1I1 + K2O1, where K0, K1 and K2 are the routing coefficients for the concerned reach, I1 and I2 are the inflows to the reach, and O1 and O2 are the outflows from the reach corresponding to time steps 1 and 2 respectively. The sum of K0, K1 and K2 of the model is

A

-1

B

-0.5

C

0.5

D

1



Ques 48 Hydrology


Irrigation water is to be provided to a crop in a field to bring the moisture content of the soil from the existing 18% to the field capacity of the soil at 28%. The effective root zone of the crop is 70 cm. If the densities of the soil and water are 1.3 g/cm3 and 1.0 g/cm3 respectively, the depth of irrigation water (in mm) required for irrigating the crop is ______.


91 is the correct answer.


Ques 49 Solid Mechanics


For the state of stresses (in MPa) shown in the figure below, the maximum shear stress (in MPa) is ______.


5 is the correct answer.


Ques 50 Structural Engineering


The first moment of area about the axis of bending for a beam cross-section is

A

moment of inertia

B

section modulus

C

shape factor

D

polar moment of inertia



Ques 51 Structural Engineering


The static indeterminacy of the two-span continuous beam with an internal hinge, shown below, is ______.


0 is the correct answer.


Ques 52 Structural Engineering


The values of axial stress (σ) in kN/m2, bending moment (M) in kNm, and shear force (V) in kN acting at point P for the arrangement shown in the figure are respectively

A

1000, 75 and 25

B

1250, 150 and 50

C

1500, 225 and 75

D

1750, 300 and 100



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