Engineering Materials MCQ with Answers

Engineering Materials MCQ with Answers

36) The change in the unit volume of a material under tension with increase in its Poisson′s ratio will ,

Answer is:

decrease

37) The percentage reduction in area of a cast iron specimen during tensile test would be of the order of

Answer is:

negligible.

38) If a material expands freely due to heating it will develop

Answer is:

no stress.

39) In a tensile test, near the elastic limit zone, the

Answer is:

tensile strain increases more quickly

40) The stress necessary to initiate yielding is

Answer is:

considerably greater than that necessary to continue it

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