Choose the correct statements.(a)    Polymers behave as elastic body at low temperatures and high rates of strain(b)    At high temperatures and low rates of strain polymers behave in a viscous manner, flowing like a liquid(c)    At low temperatures and high rates of strain polymers behave in a viscous manner, flowing like a liquid(d)   Polymers behave as elastic body at high temperatures and low strain ratesQuestion 4Select one or more:a.(a)b.(c)c.(b)d.(d)

Which of the following statements about polymers is correct?

Why do polymers exhibit significant anelastic behavior? (Select all that apply) Select 2 correct answer(s) Question 26 options: They have a viscoelastic nature They exhibit both elastic and viscous responses to stress They return to their original shape instantly after stress removal They are purely elastic materials

Which of the following will increase the strain to failure of polymers?  a. cross-linking of the molecules b. Increased molecular length  c. Addition of a plasticizer  d. Increase degree of crystallization

Which of the following is not true for resorbable polymer?1 pointThey degrade readily in bodyThey commonly consist of calciumThey can be thermosetting plasticThey are a chain of monomers

Which statement about elastic and plastic deformation must be correct?A Elastic deformation and plastic deformation are proportional to the applied force.B Elastic deformation and plastic deformation cause no change in volume.C Elastic deformation causes heating of the material but plastic deformation does not.D Elastic deformation is reversible but plastic deformation is not.