1
GATE CE 2007
MCQ (Single Correct Answer)
+1
-0.3
For an isotropic material, the relationship between the young’s modulus (E), shear modulus (G) and Poisson’s ratio (μ) is given by
A
$$G\;=\;\frac E{\left[(1+\mu)\right]}$$
B
$$G\;=\;\frac E{\left[2(1+\mu)\right]}$$
C
$$G\;=\;\frac E{\left[(1+2\mu)\right]}$$
D
$$G\;=\;\frac E{\left[2(1+2\mu)\right]}$$
2
GATE CE 2007
MCQ (Single Correct Answer)
+2
-0.6
A metal bar of length 100mm is inserted between two rigid supports and its temperature is increased by $$10^o$$C. If the coefficient of thermal expansion is 12 x$$10^{-6}$$ per $$^o$$C and the Young’s modulus is 2 x $$10^{5}$$ MPa, the stress in the bar is
A
zero
B
12MPa
C
24MPa
D
2400MPa
3
GATE CE 2007
MCQ (Single Correct Answer)
+1
-0.3
An axially loaded bar is subjected to a normal stress of $$173$$ $$MPa.$$ The maximum shear stress in the bar is
A
$$75$$ $$MPa$$
B
$$86.5$$ $$MPa$$
C
$$100$$ $$MPa$$
D
$$122.3$$ $$MPa$$
4
GATE CE 2007
MCQ (Single Correct Answer)
+2
-0.6
The shear stress at the neutral axis in a beam of triangular section with a base of $$40$$ $$mm$$ and height $$20$$ $$mm,$$ subjected to a shear force of $$3$$ $$kN$$ is
A
$$3$$ $$MPa$$
B
$$6$$ $$MPa$$
C
$$10$$ $$MPa$$
D
$$20$$ $$MPa$$
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