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Engineering
Mechanical
ME Set-1
Engineering Materials
151

Engineering Materials MCQ with Answers

151) quenching is not necessary when hardening is done by

case hardening

flame hardening

Nitriding

any one of these

Answer is:

Nitriding

Engineering Materials MCQ with Answers

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Related Engineering Materials MCQ with Answers

152) which of the following generally decreases in the steel after quench hardening?

Brittleness

Percentage elongation

Impact strength

none of these

Answer is:

Percentage elongation

153) Induction hardening is basically a

carburizing process

surface hardening process

core-hardening process

none of these

Answer is:

surface hardening process

154) The machine tool guide ways are usually hardened by

vacuum hardening

martempering

induction hardening

flame hardening

Answer is:

flame hardening

155) Age hardening is related to

duralumin

brass

copper

silver

Answer is:

duralumin

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