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Engineering Materials

Engineering Materials
According to Indian standard specifications, plain carbon steel designated by 40 C8 means that the carbon content is

0.4 to 0.6%
0.0004
0.6 to 0.8%
0.35 to 0.45%

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Engineering Materials
When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of

Mainly ferrite
Ferrite and pearlite
Mainly pearlite
Pearlite and cementite

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Engineering Materials
Steel made from phosphate iron is

Brittle
Hard
Ductile
Tough

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

Electric process
LD process
Bessemer process
Open hearth process

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Engineering Materials
Induction hardening is basically a

Surface hardening process
Core hardening process
None of these
Carburising process

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Engineering Materials
Acidic solution is one which has pH value

Greater than 7
pH value has nothing to do with neutral solution
Equal to 7
Less than 7

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