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Engineering Materials

Engineering Materials
Age hardening is related to

Silver
Duralumin
Brass
Copper

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Engineering Materials
German silver contains

No silver
1% silver
2% silver
5% silver

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

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

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Engineering Materials
Machining properties of steel are improved by adding

Chromium, nickel
Silicon, aluminium, titanium
Vanadium, aluminium
Sulphur, lead, phosphorous

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Engineering Materials
Pearlite consists of

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

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Engineering Materials
Body centered cubic space lattice is found in

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

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MORE MCQ ON Engineering Materials

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