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Engineering Materials

Engineering Materials
Drop forging dies contain carbon of the order of

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

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Engineering Materials
Depth of hardness of steel is increased by addition of

Chromium
Nickel
Vanadium
Tungsten

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Engineering Materials
The ability of a material to resist softening at high temperature is known as

Fatigue
Hot tempering
Hot hardness
Creep

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Engineering Materials
Phosphor bronze contains

None of these
0.5% of phosphorous
2.5% phosphorous
1% phosphorous

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

Normalizing
Full annealing
Hardening and cold working
Martempering

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Engineering Materials
The following element can't impart high strength at elevated temperature

Manganese
Magnesium
Silicon
Nickel

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