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Engineering Materials

Engineering Materials
The machinability of steel is improved by adding

Nickel
Nickel and chromium
Sulphur, lead and phosphorus
Chromium

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Engineering Materials
Tungsten when added to steel __________ the critical temperature.

Raises
Does not effect
Lowers
None of these

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Engineering Materials
Which of the following steel making process is being adopted at Rourkela (in India) Steel Plant?

Open hearth process
LD process
Bessemer process
Electric process

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

RC 65
RC 80
RC 57
RC 48

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Engineering Materials
Blast furnace is used to produce

Wrought iron
Cast iron
Pig iron
Steel

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Engineering Materials
The hardness and tensile strength in austenitic stainless steel can be increased by

Hardening and cold working
Normalizing
Full annealing
Martempering

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