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Engineering Materials

Engineering Materials
The compressive strength of cast iron is __________that of its tensile strength.

Less than
Equal to
More than
None of these

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Engineering Materials
The aluminium alloy, mainly used, for anodized utensil manufacture, is

Hindalium
Y-alloy
Magnalium
Duralumin

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Engineering Materials
A reversible change in the atomic structure of steel with corresponding change in the properties is known as

Allotropic change
Molecular change
Solidus change
Physical change

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Engineering Materials
Vanadium in high speed steels

Promotes retention of austenite
Forms very hard carbides and thus increases wear resistance
Promotes decarburisation
Provides high hot hardness

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Engineering Materials
Grey cast iron has

All of these
Carbon in the form of free graphite
High tensile strength
Low compressive strength

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Engineering Materials
Which of the following metal shrinks most from molten state to solid state?

Cast iron
Admiralty metal
Cast steel
Brass

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