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Engineering Materials

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

Tungsten
Chromium
Nickel
Vanadium

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Engineering Materials
Neutral solution is one which has pH value

Equal to 7
Greater than 7
pH value has nothing to do with neutral solution
Less than 7

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Engineering Materials
Pipes for bicycle frames are made of

Cast steel
Cold rolled steel
Forged steel
Hot rolled steel

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Engineering Materials
The transistor is made of

Germanium
Copper
Silver
Gold

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Engineering Materials
Following elements have face-centered cubic structure

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

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Engineering Materials
Pearlite consists of

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

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