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Engineering Materials

Engineering Materials
Cartridge brass can be

Any one of these
Formed into tube
Drawn into wires
Cold rolled into sheets

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Engineering Materials
The temperature at which ferromagnetic alpha iron transforms to paramagnetic alpha iron is

910°C
770°C
1050°C
Below recrystallization temperature

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Engineering Materials
Balls for ball bearings are made of

Mild steel
Cast iron
Stainless steel
Carbon-chrome steel

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Engineering Materials
Corundum contains more than 95%

MgO
Steel
Al2O3
SiO2

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Engineering Materials
If a refractory contains high content of silicon, it means refractory is

Brittle
Neutral
Acidic
Basic

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

More than
Less than
Equal to
None of these

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