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Engineering
Mechanical
ME Set-3
Engineering Materials
170

Engineering Materials MCQ with Answers

170) Brass (alloy of copper and zinc) is an example of

substitutional solid solution

interstitial solid solution

intermetallic compounds

all of the above

Answer is:

substitutional solid solution

Engineering Materials MCQ with Answers

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Related Engineering Materials MCQ with Answers

171) Which is false statement about annealing.Annealing is done to

relieve stresses

harden steel slightly

improve machining characteristic

soften material

Answer is:

harden steel slightly

172) Argentite is the principal ore or raw material for

aluminium

tin

zinc

None of these

Answer is:

None of these

173) Hardness of lower bainite (tempered martensite) is about

RC 65

RC 48

RC 57

RC 80

Answer is:

RC 57

Explanation:

Hardness of lower bainite (tempered martensite) is about RC 57

174) Which is false statement about normalizing. Normalizing is done to

refine grain structure

reduce segregation in casting

improve mechanical properties

induce stresses-

Answer is:

induce stresses-

Which is false statement about normalizing. Normalizing is done to

Engineering Materials MCQ with Answers

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