Simple Stress & Strain_MOM/SOM

The slope of the stress-strain curve in the elastic deformation region is ____________

• a) Poisson’s ratio

• b) Plastic modulus

• c) Elastic modulus

• d) None of the mentioned

What is the stress-strain curve?

• a) It is the percentage of stress and stain

• b) It is the difference between stress and strain

• c) It is the relationship between stress and strain

• d) None of the mentioned

Which point on the stress strain curve occurs after the proportionality limit?

• a) Upper yield point

• b) Lower yield point

• c) Elastic limit

• d) Ultimate point

Which point on the stress strain curve occurs after the lower yield point?

• a) Yield plateau

• b) Upper yield point

• c) Ultimate point

• d) None of the mentioned

Which point on the stress strain curve occurs after yield plateau?

• a) lower yield point

• b) Upper yield point

• c) Ultimate point

• d) Breaking point

Elastic limit is the point ____________

• a) up to which stress is proportional to strain

• b) At which elongation takes place without application of additional load

• c) Up to which if the load is removed, original volume and shapes are regained

• d) None of the mentioned

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

• a) Upper yield point

• b) Yield plateau

• c) Elastic limit

• d) Ultimate point

Where is the necking region?

• a) The area between lower yield point and upper yield point

• b) The area between the plastic limit and elastic limit

• c) The area between the ultimate point and initial point

• d) The area between the ultimate point and rupture

Safety factor in case of a ductile material is

• a) Real stress/unit stress

• (b) Ultimate stress/maximum stress

• (c) Yield stress/ allowable stress

• (d) None

In case of a brittle material, the factor of safety is

• (a) Real stress/unit stress

• (b) Ultimate stress/allowable stress

• (c) Allowable stress/ Yield stress

• (d) None