GATE ME 2004 | Simple Stress and Strain Question 30 | Strength of Materials

GATE ME 2004

MCQ (Single Correct Answer)

-0.3

In terms of Poisson's ratio $$\left( \mu \right)$$ the ratio of Young's Modulus $$(E)$$ to Shear Modulus $$(G)$$ of elastic materials is

$$2\left( {1 + \mu } \right)$$

$$2\left( {1 - \mu } \right)$$

$${1 \over 2}\left( {1 + \mu } \right)$$

$${1 \over 2}\left( {1 - \mu } \right)$$

GATE ME 2003

MCQ (Single Correct Answer)

-0.3

Two identical circular rods of same diameter and same length are subjected to same magnitude of axial tensile force. One of the rods is made out of mild steel having the modulus of elasticity of 206 GPa. The other rod is made out of cast iron having he modulus of elasticity of 100 GPa. Assume both the materials to be homogeneous and isotropic and the axial force causes the same amount of uniform stress in both the rods. The stresses developed are within the proportional limit of the respective materials. Which of the following observations is correct?

Both rods elongate by the same amount

Mild steel rod elongates more than the cast iron rod

Cast iron rod elongates more than the mild steel rod

As the stresses are equal strains are also equal in both the rods

GATE ME 1995

MCQ (Single Correct Answer)

-0.3

A free bar of length 1 m is uniformly heated from $${0^ \circ }C$$ to a temperature of $${t^ \circ }C$$. $$\alpha $$ is the coefficient if linear expansion and $$E$$ the modulus of elasticity. The stress in the bar is

$$\alpha tE$$

$$\alpha tE/2$$

zero

none of the above

GATE ME 1992

MCQ (Single Correct Answer)

-0.3

A large uniform plate containing a rivet-hole is subjected to uniform uniaxial tension of 95 MPa. The maximum stress in the plate is GATE ME 1992 Strength of Materials - Simple Stress and Strain Question 36 English