Engine_2014 : Engineering Safety - 1052/2355
|
|---|
| « Previous Question |
| Mechanical foam used for firefighting is produced by mechanically mixing and agitating __________ . |
| A) soda acid and water |
| B) dry chemical and water |
| C) foam chemical with air and water |
| D) bicarbonate soda with air and water |
loading answer...
| Comments |
|---|
| There are no comments for this question. |