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Materials and Construction

Materials and Construction
Gas holder of a gobar (cowdung) gas plant is made of

Tin
Molybdenum stainless steel
Mild steel
Aluminium

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Materials and Construction
__________ is used for determining the tensile strength of steels.

Mechanical press
Hydraulic press
Universal testing machine
None of these

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Materials and Construction
The loss of strength in compression which occurs, when there is a gain of strength in tension due to over loading is called

Bauschinger effect
Relaxation
Hysterisis
Hooke's effect

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Materials and Construction
Cast iron has very high

Ductility
Shock resistance
Resistance to brittleness
Compressive strength

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Materials and Construction
The damage/deterioration of metals by the __________ action of fluids is called 'erosion'.

Abrasive
Both A & B
Corrosive
Neither A nor B

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Materials and Construction
When the steel is subjected to normalising, its __________ decreases.

Ductility
None of these
Yield point
Ultimate tensile strength (UTS)

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