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Materials and Construction

Materials and Construction
High degree of toughness is a must for

Cold work tool steel
Shock resisting steel
High speed steel
None of these

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Materials and Construction
Glass is corroded by

Fluorine (dry or wet)
Phosphoric acid
Sulphuric acid
None of these

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Materials and Construction
Zinc is highly __________ at room temperature.

Malleable
Ductile
Resistant to atmospheric corrosion
Brittle

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Materials and Construction
A measure of toughness of a material is its

Yield strength
Percentage elongation
Area under stress-strain diagram
Ultimate strength

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

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

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Materials and Construction
Which of the following would not be a suitable material of construction for handling aqueous hydrofluoric acid (HF) at 100°C ?

Kel-F and teflon
Stainless steel
Monel
Graphite

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