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Materials and Construction

Materials and Construction
To improve the machinability of steel, it is generally subjected to

Normalising
Spheroidising
Tempering
Annealing

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

Glass
Procelain
Glass lined steel
High silicon cast iron

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Materials and Construction
Galvanised iron is

Alumina coated iron
None of these
Protected from rusting
Harder

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Materials and Construction
The ability of a material to absorb energy in the elastic range is a measure of its

Malleability
Resilience
Brittleness
Toughness

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Materials and Construction
Which of the following is the hardest material?

Corrundum
Topaz
Flourite
Quartz

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Materials and Construction
Valves in pipe size of 2" and under are normally made of

Brass
Bronze
Monel
Wrought iron

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