Question

Due to ______________ the dampness finds its way to the floors through the substructure.

(a) Action of rain

(b) Exposed tops of walls

(c) Raising of moisture from ground

(d) Condensation

The question was asked in an internship interview.

This key question is from Dampness topic in portion Damp Proofing, Water Proofing and Termite Proofing of Construction & Building Materials

Answer 1

Correct option is (c) Raising of moisture from ground

To elaborate: The ground on which the building is constructed may be made of soils which easily allow the water to pass. Usually the buildings material used for the foundation absorb moisture by capillary action. Thus, the Dampness finds his way to the floor through the substructure.