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Engineering Materials

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

Does not effect
Increases
None of these
Decreases

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Engineering Materials
Which of the following property is desirable in parts subjected to shock and impact loads?

Brittleness
Stiffness
Strength
Toughness

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Engineering Materials
Shock resisting steels should have

Low hardness
Toughness
Low tensile strength
Low wear resistance

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Engineering Materials
Aluminium bronze contains aluminium and copper in the ratio of

40 : 60
2.1180555555556
0.47916666666667
2.5277777777778

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Engineering Materials
Ferromagnetic alpha iron exists in temperature range of

910 to 1440°C
Below 723°C
1400 to 1539°C
770 to 910°C

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Engineering Materials
The blade of a power saw is made of

Stainless steel
Boron steel
Malleable cast iron
High speed steel

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