RBSE Sec Voc Construction Practice Questions - Rajasthan RBSE Secondary Construction - Vocational Code 114 Exam

Efflorescence on brickwork usually appears as a white powdery deposit caused mainly by:

Soluble salts brought to the surface by moisture and left after evaporation Too much polishing with wax only Using only distilled water in curing Painting with dark colours only

Correct Answer:

Soluble salts brought to the surface by moisture and left after evaporation

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