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Materials and Construction

Materials and Construction
Spark plugs are made of

Carborundum
Metallic carbides
Corundum
High alumina ceramic

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Materials and Construction
Creep is not exhibited at low temperature by

Rubber
Acrylics
Lead
Plastics

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Materials and Construction
Liners of a ball mill are never made of

Cast iron
Rubber or ceramic material
Lead
Alloy steel

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Materials and Construction
__________ iron is produced, when molten pig iron is allowed to cool gradually.

White cast
None of these
Grey cast
Wrought

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Materials and Construction
Graphite is corroded by

Hydrochloric acid
Sea water
None of these
Sulphuric acid (10%)

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Materials and Construction
Nickel made/clad equipments are suitable for handling

Fruit juices, milk & its products and caustic soda solution
Sulphuric acid (conc)
Nitric acid & hydrochloric acid (conc)
Ammonia (both aqueous & anhydrous)

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