Engine : Expired / General Subjects - 566/881
|
|---|
| « Previous Question |
| What is the BEST indication that the pre-treatment filter (or filters) of a reverse- osmosis freshwater generator must be serviced by cleaning or replacement? |
| A) An insufficient freshwater production by the unit. |
| B) An excessive pressure drop across the membrane modules. |
| C) An excessive pressure drop across the pre-treatment filter. |
| D) An excessive salinity of the freshwater output. |
loading answer...
| Comments |
|---|
| There are no comments for this question. |