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Engineering Materials

Engineering Materials
Age hardening is related to

Copper
Duralumin
Silver
Brass

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Engineering Materials
A small percentage of boron is added to steel in order to

Reduce machinability
Increase wear resistance
Increase hardenability
Increase endurance strength

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Engineering Materials
Connecting rod is, usually, made from

Low carbon steel
Medium carbon steel
High carbon steel
High speed steel

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Engineering Materials
Gun metal contains

70% copper and 30% zinc
90% copper and 10% tin
85 - 92% copper and rest tin with little lead and nickel
70 - 78% copper and rest tin

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Engineering Materials
Steel made from phosphate iron is

Brittle
Tough
Hard
Ductile

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Engineering Materials
Which of the following element results in presence of free graphite in C.I.?

Manganese
Silicon
Carbon
Sulphur

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MORE MCQ ON Engineering Materials

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