1
GATE CE 2023 Set 2
Numerical
+2
-0

A 5 cm long metal rod AB was initially at a uniform temperature of T0Β°C. Thereafter, temperature at both the ends are maintained at 0Β°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 $\rm\frac{\partial T}{\partial t}=D\frac{\partial^2T}{\partial x^2}$, where D is the thermal diffusivity of the metal, given as 1.0 cm2/s.

The temperature distribution in the rod is obtained as

$\rm T(x,t)=\Sigma_{n=1,3,5...}^{\infty}C_n\sin\frac{n\pi x}{5}e^{-\beta n^2t}$,

where x is in cm measured from A to B with π‘₯ = 0 at A, t is in s, 𝐢𝑛 are constants in Β°C, T is in Β°C, and Ξ² is in sβˆ’1 .

The value of Ξ² (in π‘ βˆ’1 , rounded off to three decimal places) is ________.

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2
GATE CE 2023 Set 2
Numerical
+2
-0

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). 

GATE CE 2023 Set 2 Strength of Materials Or Solid Mechanics - Shear Force and Bending Moment Question 2 English
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3
GATE CE 2023 Set 2
Numerical
+2
-0
A 2D thin plate with modulus of elasticity, 𝐸 = 1.0 N/m2, and Poisson’s ratio, πœ‡ = 0.5, is in plane stress condition. The displacement field in the plate is given by 𝑒 = 𝐢π‘₯2𝑦 and 𝑣 = 0, where 𝑒 and 𝑣 are displacements (in m) along the 𝑋 and π‘Œ directions, respectively, and 𝐢 is a constant (in mβˆ’2). The distances x and y along X and Y, respectively, are in m. The stress in the 𝑋 direction is πœŽπ‘‹π‘‹ = 40π‘₯𝑦 N/m2, and the shear stress is πœπ‘‹π‘Œ = 𝛼π‘₯2 N/m2. What is the value of 𝛼 (in N/m4, in integer)? ________
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4
GATE CE 2023 Set 2
MCQ (Single Correct Answer)
+1
-0.33
Muller-Breslau principle is used in analysis of structures for ________.
A
drawing an influence line diagram for any force response in the structure
B
writing the virtual work expression to get the equilibrium equation
C
superposing the load effects to get the total force response in the structure
D
relating the deflection between two points in a member with the curvature diagram in-between 
EXAM MAP