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Materials and Construction

Materials and Construction
When iron is rusted, it is

Reduced
Oxidised
Converted to a fine powder
None of these

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Materials and Construction
The fermentor used in the production of pencillin (by deep fermentation process) is made of

Procelain
Glass lined steel
Glass
High silicon cast iron

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Materials and Construction
__________ steel is widely used for the manufacture of motor car crankshafts.

Chrome
High speed
Silicon
Nickel

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Materials and Construction
Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese.

3.5-4.5
44179
1.5-2
44021

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Materials and Construction
A metallic alloy in which one of the constituent metal is __________ , is called an amalgam.

Zinc
Lead
Tin
Mercury

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Materials and Construction
Caustic soda is transported in __________ lined containers.

Glass
Either B or C
Neoprene
Nickel

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