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Engineering Materials

Engineering Materials
Iron-carbon alloys containing carbon ________ 4.3% are known as hyper-eutectic cast irons.

More than
Less than
None of these
Equal to

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Engineering Materials
White metal contains

Silver and chromium
88% copper and 10% tin and rest zinc
63 to 67% nickel and 30% copper
Alloy of tin, lead and cadmium

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Engineering Materials
Ductility of a material can be defined as

Ability to undergo large permanent deformations in compression
All of these
Ability to undergo large permanent deformations in tension
Ability to recover its original form

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Engineering Materials
Cast iron is a

Brittle material
Tough material
Malleable material
Ductile material

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Engineering Materials
Phosphor bronze contains

2.5% phosphorous
0.5% of phosphorous
1% phosphorous
None of these

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Engineering Materials
The portion of the blast furnace below its widest cross-section is called

Throat
Hearth
Stack
Bosh

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