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Engineering Materials

Engineering Materials
Induction hardening is basically a

Surface hardening process
Core hardening process
Carburising process
None of these

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Engineering Materials
Which is false statement about annealing? Annealing is done to

Improve machining characteristic
Harden steel slightly
Relieve stresses
Soften material

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Engineering Materials
The material widely used for making pendulums of clocks is

Stainless steel
Heat resisting steel
Nickel steel
High speed steel

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Engineering Materials
According to Indian standard specifications, plain carbon steel designated by 40 C8 means that the carbon content is

0.4 to 0.6%
0.35 to 0.45%
0.6 to 0.8%
0.0004

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Engineering Materials
Which of the following is not the correct method of increasing fatigue limit?

Surface decarburisation
Nitriding of surface
Shot peening
Cold working

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Engineering Materials
Dye penetrant method is generally used to locate

Surface defects
Temporary defects
Core defects
Superficial defects

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