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Building Materials

Building Materials
Depending on the chemical composition and mechanical properties, iron may be classified as

All of these
Wrought iron
Steel
Cast iron

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Building Materials
If ā€˜P’ is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is

0.70 P
0.80 P
0.85 P
0.75 P

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Building Materials
The rocks in which argil (or clay) predominates, are called

Siliceous rocks
Igneous rocks
Calcareous rocks
Argillaceous rocks

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Building Materials
Turpentine oil is used in paints as

Thinner
Vehicle
Drier
Base

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Building Materials
Kaolin is chemically classified as

Siliceous rock
Metamorphic rock
Calcareous rock
Argillaceous rock

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Building Materials
The slag which floats on the surface of the molten iron generally contains

Lime (CaO) 45%
Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8%
Silica (SiO2) 35%
All listed here

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