Machine-translated by Google. Questions are authored in English.
Top

Discussion

A ceramic body is described as plastic when it

  • A.deforms under stress and keeps the new shape
  • B.returns to its original shape when released
  • C.breaks immediately under any applied load
  • D.flows freely like a liquid under gravity

Answer: A

Correct answer: deforms under stress and keeps the new shape

Plasticity is permanent deformation without cracking: the body yields when worked and holds the form it is given. Elastic behaviour returns the shape, brittle behaviour breaks, and a liquid holds no shape at all - so plasticity is the narrow middle condition all these forming methods depend on.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.