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Engineering Materials

Engineering Materials
An engineer's hammer is made of

Cast iron
Forged steel
Mild steel
High carbon steel

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Engineering Materials
When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron.

Free graphite
Both A and B
None of these
Cementite

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Engineering Materials
Machining properties of steel are improved by adding

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

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Engineering Materials
Which of the following material has nearly zero coefficient of expansion?

High speed steel
Heat resisting steel
Invar
Stainless steel

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Engineering Materials
Preheating is essential in welding

High speed steel
Cast iron
All of these
All nonferrous materials

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

Free carbon
Cementite
Flakes
Spheroids

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MORE MCQ ON Engineering Materials

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