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When should the water be changed during poster-colour work?

Answer and explanation

Correct answer: When it becomes very dirty and coloured

The governing concept is colour cleanliness. Water used to rinse a brush gradually collects pigment, so it becomes cloudy or strongly coloured. If that dirty water is reused, it can contaminate fresh paint and make light areas look dull or muddy. Option A is correct because the water should be replaced when it is visibly dirty. The other choices ignore proper brush hygiene or give an unrelated condition.

Related tags

Poster ColourClean WaterBrush WashingColour PurityPainting TechniquesArt EducationClass 9 Mcq

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