Engine : General Subjects - 877/1128
|
|---|
| « Previous Question |
| Which of the listed types of seals is used effectively for pumps handling toxic or highly flammable liquids that cannot be permitted to escape into the atmosphere? |
| A) Rubber bellows mechanical seal |
| B) Double mechanical seal |
| C) External mechanical seal |
| D) Conventional stuffing box |
loading answer...
| Comments |
|---|
| There are no comments for this question. |