Engine : General Subjects - 1688/1128
|
|---|
| « Previous Question |
| A photoelectric cell installed in an automatically fired auxiliary boiler burner management system __________. |
| A) opens the burner circuit upon sensing a flame failure |
| B) detects a flame failure by monitoring radiant heat from glowing refractory |
| C) requires mechanical linkage to secure the burner fuel supply |
| D) must be bypassed at low firing rates |
loading answer...
| Comments |
|---|
| There are no comments for this question. |