Correct Answer: C. Shrinks
Solution:
Distemper is a water-based paint. As the water, which acts as the vehicle, evaporates during the drying process, the solid components (chalk and binder) are left behind. This loss of volume from the evaporation of water causes the paint film to contract or shrink.
Correct Answer: C. Lime
Solution:
Whitewashing is a traditional, low-cost method of painting walls, especially in rural areas. The primary material used is lime (calcium hydroxide), which is mixed with water to create a simple paint known as limewash.
Correct Answer: A. Colourwash
Solution:
A colourwash is created by taking a basic whitewash (limewash) and adding a colorant or pigment to it. This allows for simple, colored finishes on walls while retaining the properties of the original limewash.
Correct Answer: C. White lead
Solution:
White lead is the common name for basic lead carbonate. It was historically the most important white pigment and base for oil-based paints due to its excellent opacity and durability. Red lead is a lead oxide and has a reddish color, used as a primer.