CSDB 試験問題を無料オンラインアクセス
| 試験コード: | CSDB |
| 試験名称: | Certificated Surveyor of Dampness in Buildings |
| 認定資格: | PCA |
| 無料問題数: | 153 |
| 更新日: | 2026-11-04 |
A surveyor uses a moisture meter on a masonry sample and records readings of 15% from a resistance meter.
However, a calcium carbide test on the same sample shows 28% gravimetric moisture. The discrepancy is most likely due to:
A surveyor diagnoses condensation in a kitchen with persistent black mould despite recent cleaning. The underlying cause is likely: