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Engineering Materials

Engineering Materials
Super conduction by metals is observed in the temperature range of

Below 10°K
Above 100°K
Around 0°C
Around 100°C

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Engineering Materials
Steel made from phosphate iron is

Brittle
Hard
Ductile
Tough

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Engineering Materials
White metal contains

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

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Engineering Materials
Beryllium bronze contains

60% copper and 40% beryllium
99% copper and 1% beryllium
80% copper and 20% beryllium
97.75% copper and 2.25% beryllium

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Engineering Materials
The steel widely used for motor car crankshafts is

Silicon steel
Nickel steel
Nickel-chrome steel
Chrome steel

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Engineering Materials
Gun metal contains

90% copper and 10% tin
70 - 78% copper and rest tin
85 - 92% copper and rest tin with little lead and nickel
70% copper and 30% zinc

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