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Engineering Materials

Engineering Materials
Induction hardening is basically a

Carburising process
None of these
Surface hardening process
Core hardening process

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Engineering Materials
In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion.

Sulphur
Silicon
Phosphorus
Manganese

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Engineering Materials
When low carbon steel is heated up to lower critical temperature

The grain size increases very rapidly
The grain size first increases and then decreases very rapidly
There is no change in grain size
The average grain size is a minimum

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Engineering Materials
Which of the following alloys does not have copper as one of the constituents?

Constantan
Nichrome
Monel metal
Delta metal

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Engineering Materials
Which of the following has highest specific strength of all structural materials?

Magnetic steel alloys
Titanium alloys
Chromium alloys
Magnesium alloys

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Engineering Materials
The percentage of carbon in low carbon steel is

0.3%
0.15%
0.5%
0.05%

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