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Engineering Materials

Engineering Materials
The machinability of steel is improved by adding

Nickel
Chromium
Nickel and chromium
Sulphur, lead and phosphorus

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Engineering Materials
Taps dies and drills contain carbon

Above 1%
Below 1%
Above 2.2%
Below 0.5%

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Engineering Materials
Grey cast iron has

All of these
Low compressive strength
Carbon in the form of free graphite
High tensile strength

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Engineering Materials
The percentage of carbon in grey iron castings usually varies between

0.012
0.5 to 1%
5 to 7%
2.5 to 4.5%

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

Vanadium
Manganese
Chromium
Nickel

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Engineering Materials
Crystal structure of a material is, generally, examined by

Optical microscope
Metallurgical microscope
Naked eye
X-ray techniques

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MORE MCQ ON Engineering Materials

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