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The temperature stress is a function of
1. Coefficient of linear expansion
2. Temperature rise
3. Modulus of elasticity 
  • a)
    1 and 2 only
  • b)
    1 and 3 only
  • c)
    2 and 3 only 
  • d)
    1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The temperature stress is a function of1. Coefficient of linear expans...
Thermal strain ϵis proportional to the temperature change ΔT
ϵT=αΔTϵT=αΔT
α is coefficient of thermal expansion.
When there is some restriction to the bar to expand, thermal stress will generate in the material:
σT=strain×E=α.ΔT.E
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The temperature stress is a function of1. Coefficient of linear expansion2. Temperature rise3. Modulus of elasticitya)1 and 2 onlyb)1 and 3 onlyc)2 and 3 onlyd)1, 2 and 3Correct answer is option 'D'. Can you explain this answer?
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