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Engineering Materials

Engineering Materials
Steel containing ferrite and pearlite is

Tough
Hard and tough
Soft
Hard

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Engineering Materials
The machinability of steel is increased by

Phosphorous, lead and sulphur
Phosphorous and aluminium
Sulphur, graphite and aluminium
Silicon and sulphur

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Engineering Materials
Recrystallization temperature can be lowered by

All of these
Working at lower temperature
Purification of metal
Grain refinement

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

Increase endurance strength
Increase hardenability
Reduce machinability
Increase wear resistance

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Engineering Materials
The electric process of steel making is especially adapted to

High speed tool steel
Alloy and carbon tool steel
All of these
Magnet steel

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Engineering Materials
Depth of hardness of steel is increased by addition of

Nickel
Chromium
Tungsten
Vanadium

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MORE MCQ ON Engineering Materials

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