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Building Materials

Building Materials
The proportions of lime and sand in the mortar normally used in brick construction are

1 : 4
1 : 8
1 : 2
1 : 6

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Building Materials
The ultimate tensile strength of structural mild steel is about

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Building Materials
Quick lime is

Calcium oxide
None of these
Calcium carbonate
Calcium hydroxide

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Building Materials
Lime stone is not a

Stratified rock
Sedimentary rock
Aqueous rock
Metamorphic rock

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Building Materials
The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as

Open hearth process
Crucible process
Bessemer process
Cementation process

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Building Materials
For melting one tonne of cast iron

One quintal coke is required
20 kg limestone is required
700 m3 air is required
All listed here

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