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Engineering Materials

Engineering Materials
Induction hardening is basically a

Carburising process
Surface hardening process
None of these
Core hardening process

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Engineering Materials
The hardness and tensile strength in austenitic stainless steel can be increased by

Normalizing
Hardening and cold working
Martempering
Full annealing

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Engineering Materials
Drop forging dies contain carbon of the order of

0.25 to 0.5%
0.6 to 0.7%
0.1 to 0.2%
0.7 to 0.9%

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Engineering Materials
Blast furnace is used to produce

Cast iron
Pig iron
Steel
Wrought iron

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Engineering Materials
Chromium when added to steel _________ the tensile strength.

None of these
Decreases
Does not effect
Increases

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Engineering Materials
The lower critical point for all steels is

600°C
913°C
723°C
700°C

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