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Engineering Materials

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%
0.35 to 0.45%
0.0004
0.4 to 0.6%

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Engineering Materials
Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio

30 : 70
2.1180555555556
40 : 60
2.9375

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Engineering Materials
Delta-iron occurs between the temperature ranges of

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

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Engineering Materials
The strength is the ability of a material to resist

Externally applied forces with breakdown or yielding
Deformation under stress
None of these
Fracture due to high impact loads

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Engineering Materials
Pearlite consists of

13% carbon and 87% ferrite
6.67% carbon and 93.33% iron
13% cementite and 87% ferrite
13% ferrite and 87% cementite

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Engineering Materials
Pipes for bicycle frames are made of

Cast steel
Cold rolled steel
Hot rolled steel
Forged steel

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