Building Materials
Priming consists of

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

ANSWER DOWNLOAD EXAMIANS APP

Building Materials
Sapwood consists of

Innermost annular rings around the pith
Portion of timber between heartwood and cambium layer
Thin fibre which extends from the pith outwards and holds the annular rings together
Thin layers below the bark

ANSWER DOWNLOAD EXAMIANS APP