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Materials and Construction

Materials and Construction
Ammonium chloride solution is stored/ treated in __________ vessels/pipes.

Plain carbon steel
Stainless steel
Rubber or durmet-20 lined
Lead

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Materials and Construction
Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of __________ as mercury does not amalgamate with it.

Monel
Copper alloys
Stainless steel
Copper

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Materials and Construction
Cast iron is having very high

All of these
Ductility
Tensile strength
Proximity between its elastic limit and ultimate breaking strength

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Materials and Construction
Mild steel storage vessels are suitable for the storage of

Fatty acids
Anhydrous ammonia
Hydrochloric acid (95%)
Sulphuric acid (25%)

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Materials and Construction
Babbit metal used for making bearings should have

Low co-efficient of friction between journal and bearing
Ability to retain lubricant on its surface
High-co-efficient of friction between journal and bearing
Both B & C

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Materials and Construction
Most of the common metals have __________ crystal structure.

Orthorhombic
None of these
Hexagonal
Cubic

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