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Engineering Materials

Engineering Materials
Lead is poured into the joint between two pipes. These pipes may be made of

Concrete
Vitrified clay
Cast iron
Asbestos cement

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

2.1180555555556
0.88888888888889
2.5277777777778
40 : 60

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Engineering Materials
1841 high speed steel contains

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

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Engineering Materials
A cold chisel is made of

High carbon
H.S.S.
Cast iron
Mild steel

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Engineering Materials
A reversible change in the atomic structure of steel with corresponding change in the properties is known as

Solidus change
Physical change
Molecular change
Allotropic change

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Engineering Materials
Gamma-iron occurs between the temperature ranges of

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

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