GATE ME 2012 | Simple Stress and Strain Question 24 | Strength of Materials

GATE ME 2012

MCQ (Single Correct Answer)

-0.6

A solid steel cube constrained on all six faces is heated so that the temperature rises uniformly by $$\Delta T.$$ If the thermal coefficient of the material is $$\alpha $$, young's modulus is $$E$$ and the Poisson's ratio is $$\upsilon $$, the thermal stress developed in the cube due to heating is

$$ - {{\alpha \left( {\Delta T} \right)E} \over {\left( {1 - 2\upsilon } \right)}}$$

$$ - {{2\alpha \left( {\Delta T} \right)E} \over {\left( {1 - 2\upsilon } \right)}}$$

$$ - {{3\alpha \left( {\Delta T} \right)E} \over {\left( {1 - 2\upsilon } \right)}}$$

$$ - {{\alpha \left( {\Delta T} \right)E} \over {3\left( {1 - 2\upsilon } \right)}}$$

GATE ME 2006

MCQ (Single Correct Answer)

-0.6

A bar having a cross-sectional area of 700 mm² is subjected to axial loads at the positions indicated. The value of stress in the segment BC is GATE ME 2006 Strength of Materials - Simple Stress and Strain Question 14 English

GATE ME 2006 Strength of Materials - Simple Stress and Strain Question 14 English

40 MPa

50 MPa

70 MPa

120 MPa

GATE ME 2006

MCQ (Single Correct Answer)

-0.6

A steel bar of 40 mm × 40 mm square cross-section is subjected to an axial compressive load of 200 kN. If the length of the bar is 2m and E = 200 GPa. The decrement in length of the bar will be

1.25 mm

2.70 mm

4.05 mm

5.40 mm

GATE ME 2004

MCQ (Single Correct Answer)

-0.6

The figure below shows a steel rod of $$25$$ mm² cross sectional area. It is loaded at four points, K, L, M and N. Assume E_steel $$=$$ $$200$$ GPa. The total change in length of the rod due to loading is GATE ME 2004 Strength of Materials - Simple Stress and Strain Question 16 English