Civil Engineering Gate 2024 Set-1 Questions with Answer

Ques 40 GATE 2024 SET-1

A soil sample was consolidated at a cell pressure of 20 kPa and a back pressure of 10 kPa for 24 hours during a consolidated undrained (CU) triaxial test. The cell pressure was increased to 30 kPa on the next day and it resulted in the development of pore water pressure of 1 kPa. The soil sample failed when the axial stress was gradually increased to 50 kPa. The pore water pressure at failure was recorded as 21 kPa. The value of Skempton's pore pressure parameter B for the soil sample is _______. (rounded off to 2 decimal places).

(0.90) is the correct answer.

Ques 41 GATE 2024 SET-1

A 30 cm diameter well fully penetrates an unconfined aquifer of saturated thickness 20 m with hydraulic conductivity of 10 m/day. Under the steady pumping rate for a long time, the drawdowns in two observation wells located at 10 m and 100 m from the pumping well are 5 m and 1 m, respectively. The corresponding pumping rate (in m³/day) from the well is _______. (rounded off to 2 decimal places).

(175.66) is the correct answer.

Ques 42 GATE 2024 SET-1

The ordinates of a 1-hour unit hydrograph (UH) are given below.

These ordinates are used to derive a 3-hour UH. The peak discharge (in m³/s) for the derived 3-hour UH is _______. (rounded off to the nearest integer).

(158) is the correct answer.

Ques 43 GATE 2024 SET-1

A standard round bottom triangular canal section as shown in the figure has a bed slope of 1 in 200. Consider the Chezy's coefficient as 150 m^1/2/s.

The normal depth of flow, y (in meters) for carrying a discharge of 20 m³/s is _______. (rounded off to 2 decimal places).

(2.43) is the correct answer.

Ques 44 GATE 2024 SET-1

A spillway has unit discharge of 7.5 m³/s/m. The flow depth at the downstream horizontal apron is 0.5 m. The tail water depth (in meters) required to form a hydraulic jump is _______. (rounded off to 2 decimal places).

(2.22) is the correct answer.

Ques 45 GATE 2024 SET-1

Consider a balanced doubly-reinforced concrete section. If the material and other sectional properties remain unchanged, for which of the following cases will the section becomes under-reinforced?

Area of tension reinforcement is increased.

Area of compression reinforcement is increased.

Area of tension reinforcement is decreased.

Area of compression reinforcement is decreased.

(a) is the correct answer.

Ques 46 GATE 2024 SET-1

An inverted T-shaped concrete beam (B₁) in the figure, with centroidal axis X-X is subjected to an effective prestressing force of 1000 kN acting at the bottom kern point of the beam cross-section. Also consider an identical concrete beam (B₂) with the same grade of concrete but without any prestressing force. The additional cracking moment (in kN.m) that can be carried by beam B₁ in comparison to beam B₂ is _______. (rounded off to the nearest integer).

(667) is the correct answer.

Ques 47 GATE 2024 SET-1

A slab panel with an effective depth of 250 mm is reinforced with 0.2% main reinforcement using 8 mm diameter steel bars. The uniform center-to-center spacing (in mm) at which the 8 mm diameter bars are placed in the slab panel is _______. (rounded off to the nearest integer).

(157) is the correct answer.

Ques 48 GATE 2024 SET-1

The three-dimensional state of stress at a point is given by

The maximum shear stress at the point is _______.

20 MPa

15 MPa

5 MPa

25 MPa

(a) is the correct answer.

Ques 49 GATE 2024 SET-1

Find the correct match between the plane stress states and the Mohr's circles.

(P)-(III); (Q)-(IV); (R)-(I); (S)-(II)

(P)-(III); (Q)-(II); (R)-(I); (S)-(IV)

(P)-(I); (Q)-(IV); (R)-(III); (S)-(II)

(P)-(I); (Q)-(II); (R)-(III); (S)-(IV)

(a) is the correct answer.

Ques 50 GATE 2024 SET-1

A homogeneous shaft PQR with fixed supports at both ends is subjected to a torsional moment T at point Q, as shown in the figure. The polar moments of inertia of the portions PQ and QR of the shaft with circular cross-sections are J₁ and J₂, respectively. The torsional moment reactions at the supports P and R are T_P and T_R respectively. If T_P / T_R = 4 and J₁ / J₂ = 2,

the ratio of the lengths L₁ / L₂ is _______.

0.50

0.25

2.00

4.00

(b) is the correct answer.

Ques 51 GATE 2024 SET-1

The elements structural steel are _______.

Iron and Carbon

Iron, Carbon and Silicon

Iron, Carbon, Silicon and Manganese

Iron, Carbon, Silicon, Manganese and Phosphorous

Ques 52 GATE 2024 SET-1

The plane frame shown in the figure has fixed support at joint A, hinge support at joint F, and roller support at joint I. In the figure, A to I indicate joints of the frame.

If the axial deformations are neglected, the degree of kinematic indeterminacy is _______. (in integer).

(6) is the correct answer.

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