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Engineering Materials

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

Nickel
Tungsten
Chromium
Vanadium

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Engineering Materials
Pipes for bicycle frames are made of

Cast steel
Cold rolled steel
Forged steel
Hot rolled steel

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

Hot hardness
Hot tempering
Creep
Fatigue

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Engineering Materials
Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is

Invar
Hastelloy
Duralumin
Silver metal

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Engineering Materials
Crystal structure of a material is, generally, examined by

Optical microscope
Naked eye
X-ray techniques
Metallurgical microscope

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Engineering Materials
Gamma-iron occurs between the temperature ranges of

600°C to 900°C
400°C to 600°C
1400°C to 1530°C
900°C to 1400°C

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