Building Materials
Slacking of lime is affected by

None of these
Keeping it exposed to air
Crushing the lime lumps
Immersing the lime in water

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Building Materials
Sapwood consists of

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

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Building Materials
Acrylic sheets

Possess the light transmission rate of 93%
Possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness
Are generally unaffected by most household detergents
All of these

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