Stress Strain graphs

Front

Which letter is pointing to the elastic limit? A, B, C, D

Back

C

Front

Which letter points to the section that shows elastic deformation? Options: A, B, C, D

Back

D

Front

Which letter points to the section that shows ductile deformation? Options: A, B, C, D

Back

B

Front

Which letter is pointing to the fracture point? Options: A, B, C, D

Back

A

Front

Which region of deformation is reversible?

Back

D

Front

Which statement is incorrect? For a given extension more energy is stored in X than in Y, The Young modulus of the material of wire Y is greater than that of wire X., Both wire X and wire Y obey Hooke’s law., Wire X has a greater breaking stress than wire Y

Back

The Young modulus of the material of wire Y is greater than that of wire X.

Front

Which of the materials shown has the highest modulus of elasticity? Strong cast iron, pure aluminium, mild steel, aluminium alloy, molybdenum

Back

molybdenum

Front

A sample of wire has a Young modulus E. A second sample of wire made from an identical material has three times the length and half the diameter of the first sample. What is the Young modulus of the second sample of wire in terms of E?

Back

E

Front

Which of the materials shown is most brittle? Strong cast iron, pure aluminium, mild steel, aluminium alloy, pure aluminium

Back

Strong cast iron

Front

What is the point P shown on the stress strain curve?

Back

Ultimate point