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Engineering Materials

Engineering Materials
The presence of sulphur in pig iron makes

It hard
It brittle
The casting unsound
It easily machinable

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Engineering Materials
Depth of hardness of steel is increased by addition of

Tungsten
Nickel
Chromium
Vanadium

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Engineering Materials
Body centered cubic space lattice is found in

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

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Engineering Materials
Solder is an alloy consisting of

Tin and copper
Lead and zinc
Tin and lead
Tin, antimony, copper

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Engineering Materials
Tungsten when added to steel __________ the critical temperature.

Does not effect
Raises
Lowers
None of these

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Engineering Materials
The presence of hydrogen in steel causes

Reduced neutron absorption cross-section
Embrittlement
Corrosion resistance
Improved Weldability

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MORE MCQ ON Engineering Materials

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