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Engineering Materials

Engineering Materials
Which of the following metal is used for nuclear energy?

Uranium
All of these
Thorium
Niobium

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Engineering Materials
Which of the following display properties similar to that of steel?

None of these
Both (A) and (B)
Blackheart cast iron
Whiteheart cast iron

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Engineering Materials
Eutectoid steel contains following percentage of carbon

0.003
0.0002
0.008
0.0063

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Engineering Materials
Which of the following has highest specific strength of all structural materials?

Chromium alloys
Titanium alloys
Magnesium alloys
Magnetic steel alloys

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Engineering Materials
Addition of manganese to aluminium results in

Improvement of casting characteristics
One of the best known age and precipitation hardening systems
Improving machinability
Improvement of corrosion resistance

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Engineering Materials
A small percentage of boron is added to steel in order to

Increase hardenability
Reduce machinability
Increase wear resistance
Increase endurance strength

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