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Engineering Materials

Engineering Materials
Which of the following elements does not impart hardness to steel?

Silicon
Chromium
Copper
Nickel

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Engineering Materials
Iron-carbon alloys containing 1.7 to 4.3% carbon are known as

Hypereutectic cast irons
Eutectic cast irons
Hypoeutectic cast irons
None of these

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Engineering Materials
Steel made from phosphate iron is

Brittle
Tough
Ductile
Hard

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Engineering Materials
High carbon steel carries carbon percentage

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

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Engineering Materials
Steel containing ferrite and pearlite is

Soft
Hard and tough
Tough
Hard

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Engineering Materials
The aluminium alloy, mainly used, for anodized utensil manufacture, is

Magnalium
Duralumin
Hindalium
Y-alloy

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