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Engineering Materials

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

Vanadium
Chromium
Nickel
Tungsten

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Engineering Materials
The property of a material which enables it to retain the deformation permanently, is called

Plasticity
Malleability
Ductility
Brittleness

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Engineering Materials
Neutral solution is one which has pH value

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

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Engineering Materials
Free cutting steels

Is used where rapid machining is the prime requirement
Contain carbon in free from
Can be cut freely
Require minimum cutting force

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Engineering Materials
The toughness of a material __________ when it is heated.

Increases
Decreases
None of these
Remain same

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Engineering Materials
Cast iron is manufactured in

Blast furnace
Cupola
Open hearth furnace
Bessemer converter

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