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Engineering Materials

Engineering Materials
In nodular iron, graphite is in the form of

Free carbon
Flakes
Cementite
Spheroids

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Engineering Materials
In high speed steels, manganese is used to tougher the metal and to increase its

Hardness
Melting point
Critical temperature
Yield point

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Engineering Materials
Tensile strength of steel can be safely increased by

Adding carbon up to 0.83%
Adding carbon up to 2.8%
Adding small quantities of copper
Adding carbon up to 6.3%

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Engineering Materials
Neutral solution is one which has pH value

Greater than 7
Less than 7
Equal to 7
pH value has nothing to do with neutral solution

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Engineering Materials
The transistor is made of

Germanium
Silver
Gold
Copper

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Engineering Materials
Machining properties of steel are improved by adding

Chromium, nickel
Silicon, aluminium, titanium
Vanadium, aluminium
Sulphur, lead, phosphorous

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MORE MCQ ON Engineering Materials

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