1
GATE ME 2012
MCQ (Single Correct Answer)
+2
-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
A
$$ - {{\alpha \left( {\Delta T} \right)E} \over {\left( {1 - 2\upsilon } \right)}}$$
B
$$ - {{2\alpha \left( {\Delta T} \right)E} \over {\left( {1 - 2\upsilon } \right)}}$$
C
$$ - {{3\alpha \left( {\Delta T} \right)E} \over {\left( {1 - 2\upsilon } \right)}}$$
D
$$ - {{\alpha \left( {\Delta T} \right)E} \over {3\left( {1 - 2\upsilon } \right)}}$$
2
GATE ME 2012
Numerical
+2
-0
A $$200$$ mm long, stress free rod at room temperature is held between two immovable rigid walls. The temperature of the rod is uniformly raised by $$250$$oC. If the Young's modulus and coefficient of thermal expansion are $$200$$ GPa and $$1 \times {10^{ - 5}}/{}^ \circ C,$$ respectively, the magnitude of the longitudinal stress (in MPa) developed in the rod is _________
Your input ____
3
GATE ME 2006
MCQ (Single Correct Answer)
+2
-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
A
1.25 mm
B
2.70 mm
C
4.05 mm
D
5.40 mm
4
GATE ME 2006
MCQ (Single Correct Answer)
+2
-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 11 English
A
40 MPa
B
50 MPa
C
70 MPa
D
120 MPa
GATE ME Subjects
Turbo Machinery
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12