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Materials and Construction

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

Monel
Brass
Wrought iron
Bronze

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Materials and Construction
High speed steel tools retain their hardness upto a temperature of __________ °C.

500
900
750
1100

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

Shrinkage
Tensile strength
Fluidity
Melting point

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Materials and Construction
Post weld heat treatment is done by

Normalising
Stress relieving
Solution annealing
Tempering

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Materials and Construction
Reduction in the grain size reduces the __________ of the material.

Fatigue resistance
Creep resistance
Tensile strength
All of these

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Materials and Construction
The digester of a Gobar gas plant is a

Mild steel drum
Stainless steel vessel
Cast iron vessel
Masonry well

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