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Engineering Materials

Engineering Materials
High carbon steel carries carbon percentage

0.8 to 1.5%
0.3 to 0.6%
0.6 to 0.8%
0.1 to 0.3%

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Engineering Materials
Which of the following is the binding material in cemented carbides?

Vanadium
Iron
Nickel
Cobalt

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Engineering Materials
Hardness of martensite is about

RC 57
RC 80
RC 65
RC 48

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Engineering Materials
The toughness of a material __________ when it is heated.

Remain same
Increases
Decreases
None of these

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Engineering Materials
Hardness of lower bainite (tempered martensite) is about

RC 65
RC 48
RC 57
RC 80

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Engineering Materials
The hardness is the property of a material due to which it

Breaks with little permanent distortion
Can be drawn into wires
Can cut another metal
Can be rolled or hammered into thin sheets

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