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Engineering Materials

Engineering Materials
Maximum percentage of carbon in ferrite is

0.0006
0.001
0.00025
0.0025

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Engineering Materials
The transistor is made of

Copper
Silver
Gold
Germanium

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Engineering Materials
In high speed steels, manganese is used to tougher the metal and to increase its

Yield point
Melting point
Hardness
Critical temperature

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Engineering Materials
1841 high speed steel contains

None of these
Vanadium 18%, chromium 1% and tungsten 4%
Vanadium 1%, chromium 4% and tungsten 18%
Vanadium 4%, chromium 18% and tungsten 1%

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Engineering Materials
Which of the following is not the correct method of increasing fatigue limit?

Cold working
Nitriding of surface
Surface decarburisation
Shot peening

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Engineering Materials
The alloying element which reduces the formation of iron sulphide in steel is

Chromium
Nickel
Vanadium
Manganese

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MORE MCQ ON Engineering Materials

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