Building Materials
Granite is not suitable for ordinary building purpose because

it can not be polished
it is not a fire proof material
it is costly
it has less crushing strength

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Building Materials
Priming consists of

8 parts of white lead, one part of chalk and four parts of twice boiled linseed oil
None to these
One part of white lead, 8 parts of chalk and four parts of twice boiled linseed oil
One part of white lead, 8 parts of chalk and one part of linseed oil

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