1
GATE CE 2013
MCQ (Single Correct Answer)
+2
-0.6
The state of $$2D$$-stress at a point is given by the following matrix of stresses: $$$\left[ {\matrix{ {{\sigma _{xx}}} & {{\sigma _{xy}}} \cr {{\sigma _{xy}}} & {{\sigma _{yy}}} \cr } } \right] = \left[ {\matrix{ {100} & {30} \cr {30} & {20} \cr } } \right]MPa$$$

What is the magnitude of maximum shear stress in $$MPa$$ ?

A
$$50$$
B
$$75$$
C
$$100$$
D
$$110$$
2
GATE CE 2004
MCQ (Single Correct Answer)
+2
-0.6
If principle stresses in two-dimensional case are $$\left( - \right)\,\,10\,MPa$$ and $$20$$ $$MPa$$ respectively, then maximum shear stress at the point is
A
$$10$$ $$MPa$$
B
$$15$$ $$MPa$$
C
$$20$$ $$MPa$$
D
$$30$$ $$MPa$$
3
GATE CE 2004
MCQ (Single Correct Answer)
+2
-0.6
In a two dimensional analysis, the state of stress at a point is shown below. GATE CE 2004 Strength of Materials Or Solid Mechanics - Complex Stress Question 3 English

If $$\sigma = 120\,\,MPa$$ and $${\tau _{xy}} = 70\,\,MPa,\,\,{\sigma _x}$$ and $${\sigma _y},$$ are respectively

A
$$26.7$$ $$MPa$$
B
$$54$$ $$MPa$$ and $$128$$ $$MPa$$
C
$$67.5$$ $$MPa$$ and $$213.3$$ $$MPa$$
D
$$16$$ $$MPa$$ and $$138$$ $$MPa$$
4
GATE CE 1994
MCQ (Single Correct Answer)
+2
-0.6
The state of two dimensional stresses acting on a concrete lamina consists of a direct tensile stress, $${\sigma _x} = 1.5\,\,N/m{m^2},$$ and shear stress, $$\tau = 1.20\,N/m{m^2},$$ which cause cracking of concrete. Then the tensile strength of the concrete in $$N/m{m^2}$$ is
A
$$1.50$$
B
$$2.08$$
C
$$2.17$$
D
$$2.29$$
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