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Engineering Materials

Engineering Materials
The metal suitable for bearings subjected to light loads, is

Phosphor bronze
Silicon bronze
Monel metal
White metal

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Engineering Materials
Following elements have face-centered cubic structure

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

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Engineering Materials
A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as

Precipitation
Recrystallization
Heat treatment
Allotropic change

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Engineering Materials
The transistor is made of

Copper
Germanium
Silver
Gold

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Engineering Materials
Sulphur in cast iron

Increases hardness and brittleness
Make the iron white and hard
Aids fusibility and fluidity
Makes the iron soft and easily machinable

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Engineering Materials
Basic constituents of Monel metal are

Nickel, lead and tin
Nickel, copper
Zinc, tin, lead
Nickel, molybdenum

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