1
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.

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 $$138$$ $$MPa$$
2
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
$$2.29$$
3
GATE CE 1993
MCQ (Single Correct Answer)
+2
-0.6
Which of the following Mohr's circles shown below qualitatively and correctly represents the state of plane stress at a point in a beam above the neutral axis, where it is subjected to combined shear and bending compressive stresses
A
B
C
D
4
GATE CE 1990
MCQ (Single Correct Answer)
+2
-0.6
The magnitude of the only shear stresses acting at a point in plane stress situation is $$7.5\,N/n{m^2}.$$ The magnitudes of the principle stresses will be:
A
$$+ \,15.0\,N/n{m^2}$$ and $$- 7.5\,N/n{m^2}$$
B
$$+ \,7.5\,N/n{m^2}$$ and $$- 15.0\,N/n{m^2}$$
C
$$+ \,7.5\,N/n{m^2}$$ and $$- 7.5\,N/n{m^2}$$
D
$$+ \,10.0\,N/n{m^2}$$ and $$- 7.5\,N/n{m^2}$$
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