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Engineering Materials

Engineering Materials
Nickel when added to copper improves

Machinability
Hardness
Strength and ductility
Hardness and strength

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Engineering Materials
1841 high speed steel contains

Vanadium 4%, chromium 18% and tungsten 1%
Vanadium 18%, chromium 1% and tungsten 4%
Vanadium 1%, chromium 4% and tungsten 18%
None of these

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Engineering Materials
Connecting rod is, usually, made from

High speed steel
Low carbon steel
Medium carbon steel
High carbon steel

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Engineering Materials
Dye penetrant method is generally used to locate

Superficial defects
Surface defects
Temporary defects
Core defects

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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%
0.0004
0.35 to 0.45%
0.4 to 0.6%

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Engineering Materials
The surface hardness of the following order is achieved by nitriding operation

1500 VPN
600 VPN
1000 to 1100 VPN
250 VPN

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