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Engineering Materials

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

X-ray techniques
Naked eye
Optical microscope
Metallurgical microscope

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Engineering Materials
Weld decay is the phenomenon found with

Mild steel
Stainless steel
Cast iron
Nonferrous materials

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Engineering Materials
Body centered cubic space lattice is found in

None of these
Zinc, magnesium, cobalt, cadmium, antimony and bismuth
Gamma iron, aluminium, copper, lead, silver and nickel
Alpha iron, tungsten, chromium and molybdenum

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Engineering Materials
Pearlite consists of

13% carbon and 87% ferrite
6.67% carbon and 93.33% iron
13% ferrite and 87% cementite
13% cementite and 87% ferrite

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Engineering Materials
Cast iron is a

Brittle material
Ductile material
Malleable material
Tough material

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Engineering Materials
Taps dies and drills contain carbon

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

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