GATE CE topic:infrastructure PYQs & Answers — Page 50

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Questions 491–500 of 1300. Imported answers require independent review unless marked reviewed.

Topic practice 1300 questionsPage 50 of 130

Which of the following options match the test reporting conventions with the given material tests in the table? Table: Test reporting condition: (P) Reported as ratio; (Q) Reported as percentage; (R) Reported in temperature; (S) Reported in length. Material test: (I) Solubility of bitumen; (II) Softening point of bitumen; (III) Los Angeles abrasion test; (IV) Flash point of bitumen; (V) Ductility of bitumen; (VI) Specific gravity of bitumen; (VII) Thin film oven test.

Your answerSelect all correct options. You can choose more than one.

(P) - (VI); (Q) - (I); (R) - (II); (S) - (VII)

(P) - (VI); (Q) - (III); (R) - (IV); (S) - (V)

(P) - (VI); (Q) - (I); (R) - (II); (S) - (V)

(P) - (VI); (Q) - (III); (R) - (IV); (S) - (VII)

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Consider the Marshall method of mix design for bituminous mix. With the increase in bitumen content, which of the following statements is/are TRUE?

Your answerSelect all correct options. You can choose more than one.

the Stability decreases initially and then increases

the Flow increases monotonically

the air voids (VA) increases initially and then decreases

the voids filled with bitumen (VFB) increases monotonically

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The differential equation,

is solved by employing a backward difference scheme within the finite difference framework. The value of

at the

time-step, for some

, is 1.75. The corresponding time (t) is 3.14 s. Each time step is 0.01 s long. Then, the value of

is ______ (round off to three decimal places).

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A 5 cm long metal rod AB was initially at a uniform temperature of

°C. Thereafter, temperature at both the ends are maintained at 0 °C. Neglecting the heat transfer from the lateral surface of the rod, the heat transfer in the rod is governed by the one-dimensional diffusion equation

, where D is the thermal diffusivity of the metal, given as 1.0 cm²/s.

The temperature distribution in the rod is obtained as

where x is in cm measured from A to B with

at A, t is in s,

are constants in °C, T is in °C, and

is in s⁻¹.

The value of

(in s⁻¹, rounded off to three decimal places) is ____________.

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The infinitesimal element shown in the figure (not to scale) represents the state of stress at a point in a body. What is the magnitude of the maximum principal stress (in N/mm

, in integer) at the point? ______________________________

Diagram for Civil Engineering question 53

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A beam is subjected to a system of coplanar forces as shown in the figure. The magnitude of vertical reaction at Support P is ____________ N (round off to one decimal place).

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An idealised bridge truss is shown in the figure.

Diagram for Civil Engineering question 54

The force in Member U

is ______ kN (round off to one decimal place).

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For the frame shown in the figure (not to scale), all members (AB, BC, CD, GB, and CH) have the same length,

, and flexural rigidity,

. The joints at B and C are rigid joints, and the supports A and D are fixed supports. Beams GB and CH carry uniform distributed loads of

per unit length. The magnitude of the moment reaction at A is

. What is the value of

(in integer)? ____________

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The cross-section of a girder is shown in the figure (not to scale). The section is symmetric about a vertical axis (Y-Y). The moment of inertia of the section about the horizontal axis (X-X) passing through the center is ______ cm

(round off to nearest integer).

Diagram for Civil Engineering question 55

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Consider the singly reinforced section of a cantilever concrete beam under bending, as shown in the figure (M25 grade concrete, Fe415 grade steel). The stress block parameters for the section at the ultimate limit state, as per IS 456: 2000 notations, are given. The ultimate moment of resistance for the section by the Limit State Method is __________ kN.m (round off to one decimal place).

[Note: Here,

is the total area of tension steel bars,

is the width of the section,

is the effective depth of the bars,

is the characteristic compressive cube strength of concrete,

is the yield stress of steel, and

is the depth of neutral axis.]

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GATE CE topic:infrastructure PYQs

Question 51

Question 51

Question 52

Question 52

Question 53

Question 53

Question 54

Question 54

Question 55

Question 55