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Engineering Materials

Engineering Materials
The machinability of steel is improved by adding

Nickel
Nickel and chromium
Chromium
Sulphur, lead and phosphorus

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Engineering Materials
Blast furnace produces following by reduction of iron ore

Cast iron
Wrought iron
Malleable iron
Pig iron

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Engineering Materials
Depth of hardness of steel is increased by addition of

Vanadium
Chromium
Nickel
Tungsten

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Engineering Materials
Bell metal contains

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

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Engineering Materials
Machining properties of steel are improved by adding

Chromium, nickel
Sulphur, lead, phosphorous
Silicon, aluminium, titanium
Vanadium, aluminium

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Engineering Materials
Which of the following display properties similar to that of steel?

Whiteheart cast iron
Blackheart cast iron
None of these
Both (A) and (B)

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