The property, by virtue of witch certain materials return to their original thaw
ID: 1719015 • Letter: T
Question
The property, by virtue of witch certain materials return to their original thaw after the removal of the force, it called Ductility Plasticity Stiffen Elasticity The stress developed In a material that is being stretched to breaking point li called- Braking stress Fracture stress yield stress Ultimate stress Shear stress in a shaft subjected to torsion will be: Maximum at the circumference and era at the center Maximum at the center Uniform throughout None of the above Strain is defined as the ratio of: Change in volume to original volume Change in length to original length Change in cross-sectional area to original cross-sectional area All of the aboveExplanation / Answer
e) 4
The property according to which materails return to its original shape is Elasticity according to Hookes Law
f) 2
At the breaking point the stress is fracture stress on the stress vs strain diagram
g) 1
The shear stress is given by T*r/J
Where r is the distance from the center
At circumference r = R therefore the shear stress is maximum at circumference
At center r = 0 therefore the shear stress is zero at the center
h) 2
Strain is defined as ratio of change in lenght to its original length
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