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Engineering Materials

Engineering Materials
The lower critical point for all steels is

913°C
600°C
723°C
700°C

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Engineering Materials
Nickel when added to copper improves

Hardness and strength
Hardness
Machinability
Strength and ductility

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Engineering Materials
A cold chisel is made of

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

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Engineering Materials
The percentage of carbon in low carbon steel is

0.5%
0.15%
0.05%
0.3%

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Engineering Materials
The alloy used for making electrical resistances and heating elements is

Invar
Magnin
Nichrome
Elinvar

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Engineering Materials
The ability of a material to resist softening at high temperature is known as

Hot hardness
Creep
Hot tempering
Fatigue

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MORE MCQ ON Engineering Materials

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