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Engineering Materials

Engineering Materials
The metal suitable for bearings subjected to light loads, is

Silicon bronze
White metal
Monel metal
Phosphor bronze

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Engineering Materials
Wrought iron

Can be easily forged or welded
Cannot stand sudden and excessive shocks
All of these
Is a ductile material

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Engineering Materials
For the allotropic forms of iron, the points of arrest are

The points where no further change occurs
The points where there is no further flow of metal
Constant for all metals
The points of discontinuity

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Engineering Materials
Eutectoid steel contains following percentage of carbon

0.008
0.0063
0.003
0.0002

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Engineering Materials
1841 high speed steel contains

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

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Engineering Materials
Large forgings, crank shafts, axles normally contain carbon up to

0.05 to 0.20%
0.45 to 0.55%
0.20 to 0.45%
0.55 to 1.0%

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