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Engineering Materials

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

Metallurgical microscope
Optical microscope
Naked eye
X-ray techniques

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Engineering Materials
The metal suitable for bearings subjected to heavy loads, is

White metal
Monel metal
Silicon bronze
Phosphor bronze

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Engineering Materials
Taps dies and drills contain carbon

Above 2.2%
Above 1%
Below 1%
Below 0.5%

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

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

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Engineering Materials
Delta-iron occurs between the temperature ranges of

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

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Engineering Materials
Tungsten in high speed steel provides

Hot hardness
Toughness
Sharp cutting edge
Wear resistance

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