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Engineering Materials

Engineering Materials
Connecting rod is usually made of

Medium carbon steel
Aluminium
High carbon steel
Low carbon steel

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Engineering Materials
The machinability of aluminium increases when _________ is added to aluminium.

Magnesium
Silicon
Copper
Lead and bismuth

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Engineering Materials
German silver is an alloy of

Nickel, Copper and zinc
Refined silver
Silver and some impurities
Nickel and copper

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Engineering Materials
Silicon when added to copper improves

Hardness and strength
Strength and ductility
Hardness
Machinability

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Engineering Materials
For a steel containing 0.8% carbon

There is only one critical point
There are two critical points
There is no critical point
There can be any number of critical points

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Engineering Materials
Gamma-iron occurs between the temperature ranges of

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

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