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Engineering Materials

Engineering Materials
High carbon steel carries carbon percentage

0.6 to 0.8%
0.1 to 0.3%
0.8 to 1.5%
0.3 to 0.6%

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Engineering Materials
Addition of silicon to aluminium results in

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

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Engineering Materials
Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?

Babbitt metal
Nichrome
Phosphor bronze
Monel metal

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Engineering Materials
White cast iron has

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

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Engineering Materials
Beryllium bronze contains

97.75% copper and 2.25% beryllium
60% copper and 40% beryllium
99% copper and 1% beryllium
80% copper and 20% beryllium

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Engineering Materials
Following elements have face-centered cubic structure

All of these
A iron (below 910°C and between 1400 to 1539°C), W
Gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt
Mg, Zn, Ti, Zr, Br, Cd

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