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Materials and Construction

Materials and Construction
Mild steel is used for making

Drop forging
Die block
Channels
Fish plates

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Materials and Construction
Acetaldehyde is shipped in __________ drums.

Steel
Aluminium
Either B & C
Cast iron

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Materials and Construction
Softness of silver can be converted into hardness by alloying it with small quantity of

Tin
Aluminium
Zinc
Copper & nickel

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Materials and Construction
Presence of high phosphorous in cast iron increases its

Tensile strength
Fluidity
Shrinkage
Melting point

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Materials and Construction
Presence of nitrogen in steel

Is desirable
Increases its strength
Makes it brittle
Increases its hardness

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Materials and Construction
The hardest material just prior to diamond in Mhos scale is

Topax
Corrundum
Calcite
Carborundum

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