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Materials and Construction

Materials and Construction
The phenomenon in which slow extension of material takes place with the time at constant load is called

Ductility
Creep
Elasticity
Plasticity

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Materials and Construction
Concentrated HCl at 30°C can be stored in a vessel made of

Stainless steel and high silicon cast iron
PTFE and porcelain
Cast iron and aluminium
None of these

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Materials and Construction
Which of the following is not an alloy of tin?

Pewter type metal
Soft solder
German silver
White-bearing metal

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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
Softness of silver can be converted into hardness by alloying it with small quantity of

Zinc
Copper & nickel
Tin
Aluminium

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Materials and Construction
Which of the following finds the least commercial use?

Pure iron
High silicon iron
Low carbon steel
High carbon steel

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