Correct option is A

So P = Eαt
The stress developed in a bar which is not free to expand due to increase in temperature, is given as:
where α is the coefficient of thermal expansion and ΔT temperature increased.

So P = Eαt
A simply supported beam of 8 m has two vertical point loads: 10 kN at 2 m from the left support, 10 kN at 6 m from the left support. Using the graphical method, what is the approximate reaction at the left support ?
A simply supported beam of 10 m carries a uniformly distributed load (UDL) of 5 kN/m over its entire span. What is the reaction force at each support?
Choose one of the assumptions for Macaulay's method of slope and deflection?
The area under the stress-strain curve for a material is usually used to estimate the ____
The Poisson's ratio of a stable, isotropic, linear elastic material cannot be less than:
A propped cantilever beam of span L when loaded with a uniformly distributed load of intensity p will have a bending moment M at the fixed end, where M is:
The slenderness ratio has which of the following dimensions?
A rectangular bar is subjected to torsion; what will be the location of the maximum shear stress?
A 0.2 mm thick strip is bent and laid over a frictionless pulley of 25 mm diameter. If E = 100 GPa, the maximum stress in the strip is
A simply supported beam of 8 m has two vertical point loads: 10 kN at 2 m from the left support, 10 kN at 6 m from the left support. Using the graphical method, what is the approximate reaction at the left support ?
A simply supported beam of 8 m has two vertical point loads: 10 kN at 2 m from the left support, 10 kN at 6 m from the left support. Using the graphical method, what is the approximate reaction at the left support ?
A simply supported beam of 10 m carries a uniformly distributed load (UDL) of 5 kN/m over its entire span. What is the reaction force at each support?
Choose one of the assumptions for Macaulay's method of slope and deflection?
The area under the stress-strain curve for a material is usually used to estimate the ____
The Poisson's ratio of a stable, isotropic, linear elastic material cannot be less than:
A propped cantilever beam of span L when loaded with a uniformly distributed load of intensity p will have a bending moment M at the fixed end, where M is:
The slenderness ratio has which of the following dimensions?
A rectangular bar is subjected to torsion; what will be the location of the maximum shear stress?
A 0.2 mm thick strip is bent and laid over a frictionless pulley of 25 mm diameter. If E = 100 GPa, the maximum stress in the strip is
A simply supported beam of 8 m has two vertical point loads: 10 kN at 2 m from the left support, 10 kN at 6 m from the left support. Using the graphical method, what is the approximate reaction at the left support ?