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Engineering Materials

Engineering Materials
Eutectoid steel contains following percentage of carbon

0.0002
0.0063
0.003
0.008

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Engineering Materials
Brass contains

90% copper and 10% tin
85 - 92% copper and rest tin with little lead and nickel
70% copper and 30% zinc
70 - 75% copper and rest tin

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

Basic
Neutral
Acidic
Brittle

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Engineering Materials
Shock resisting steels should have

Low tensile strength
Low hardness
Toughness
Low wear resistance

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Engineering Materials
White metal contains

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

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Engineering Materials
Chromium when added to steel _________ the tensile strength.

Decreases
Does not effect
Increases
None of these

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