quiz2s

quiz2s - Name ES2001 Quiz 2 A sample of a polymer with an...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
ES2001 Quiz 2 The ductility of a white bread whose stress- strain curve is enclosed is about: a) 1200 N/m 2 b) 1200 MPa c) 1050 MPa d) 0.0015 e) 10% f) 15% A brittle material is one with a low value of: a) yield strength b) tensile strength c) flexural strength d) elastic modulus e) toughness Circle the right equation for Poisson’s ratio: 0 l l = ν z x ε - = 0 d d = At 75 ° C, a sample of polystyrene is likely to be: a) a brittle solid b) a rubbery solid c) a melt d) a thermoset e) a non-vinyl polymer The tensile strength of a material is the: a) maximum stress that a material can withstand b) stress at fracture of the material c) maximum stress that a material can withstand before plastic deformation d) stress at maximum ductility e) stress at the onset of elastic deformation The tensile strength of polystyrene is: a) less than that of PE b) less than its yield strength c) increases with the # of ionic bonds d) greater than that of PP e) decreases with increasing crystallinity Based on the enclosed stress-strain curve, the
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/07/2008 for the course ME 2001 taught by Professor Shivkumar during the Spring '08 term at WPI.

Page1 / 2

quiz2s - Name ES2001 Quiz 2 A sample of a polymer with an...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online