Engine_2014 : Engineering Safety - 188/2355
|
|---|
| « Previous Question |
| A tank which has been sealed for a long period of time can be dangerous because __________ . |
| A) steel surfaces consume oxygen by rusting |
| B) sealed tanks usually form a vacuum |
| C) moisture condenses in the tank, displacing the oxygen |
| D) most tank coatings give off poisonous vapors in the presence of moisture |
loading answer...
| Comments |
|---|
| There are no comments for this question. |