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Materials and Construction

Materials and Construction
The carbonating tower used in Solvay process of soda ash manufacture is made of

Cast iron
Lead lined steel
Karbate
Stainless steel

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Materials and Construction
Bog iron used for the adsorption of H?S from coke oven gas is

Iron impregnated with resin (usually bakelite)
An intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide)
Carbon free iron
None of these

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Materials and Construction
Corrosion resisting properties of cast iron are significantly improved by the addition of 12 - 15% of

All of these
Vanadium
Tungsten
Silicon

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Materials and Construction
Thermal shield used in high powered nuclear reactor to protect the walls of the reactor from radiation damage is made of

Concrete
Graphite
Steel
Zircalloy

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Materials and Construction
Presence of manganese in alloy steel improves its

Cutting ability
Elasticity & creep resistance
Abrasion resistance & toughness
Corrosion resistance

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Materials and Construction
Compressive strength of wood is usually more along the grains. The tenile strength of wood as compared to that of steel is about

Half
One third
One twelfth
One fifth

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