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Engineering Materials

Engineering Materials
Muntz metal contains copper and zinc in the ratio of

2.1180555555556
40 : 60
0.88888888888889
2.5277777777778

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Engineering Materials
Gamma-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
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
Manganese is added in low carbon steel to

Make the steel tougher and harder
Make the steel ductile and of good bending qualities
All of these
Raise the yield point

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Engineering Materials
The crystal structure of brass is

H.C.P.
Orthorhombic crystalline structure
C.C.
F.C.C.

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Engineering Materials
The lower critical temperature

Is same for all steels
Increases as the carbon content in steel increases
Decreases as the carbon content in steel increases
Depends upon the rate of heating

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