Civil Engineering GATE 2024 Set-I Questions with Answer

Ques 27 Geotechnical Engineering

Which one of the following saturated fine-grained soils can attain a negative Skempton's pore pressure coefficient (A)?

Ques 28 Geotechnical Engineering

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).

Ques 29 Geotechnical Engineering

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?

Ques 30 Geotechnical Engineering

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?

Ques 31 Hydrology

A 2 m wide rectangular channel is carrying a discharge of 30 m³/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/s², the critical depth of flow (in meters) is _______. (rounded off to 2 decimal places).

Ques 32 Hydrology

A round-bottom triangular lined canal is to be laid at a slope of 1 in 1500, to carry a discharge of 25 m³/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 _______.

Ques 33 Numerical Methods

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 _______.

Ques 34 Reinforced Concrete Structures

A concrete column section of size 300 mm x 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.

Ques 35 Structural Analysis

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.

Ques 36 Structural Analysis

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.

Ques 37 Structural Analysis

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 _______.

Ques 38 Structural Analysis

The structural design method that DOES NOT take into account the safety factors on the design loads is _______.

Ques 39 Structural Analysis

The steel angle section shown in the figure has elastic section modulus of 150.92 cm³ 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).