Engine : Expired / General Subjects - 68/881
|
|---|
| « Previous Question |
| Auxiliary boilers are divided into several classifications, one of which is __________. |
| A) water-tube supercritical circulation |
| B) water-tube forced circulation |
| C) fire-tube controlled circulation |
| D) fire-tube express circulation |
loading answer...
| Comments |
|---|
| There are no comments for this question. |