Engine : Steam Plants - 648/811
|
|---|
| « Previous Question |
| The photoelectric cell installed as part of the combustion safety controls of an automatically fired boiler will __________. |
| A) close the control circuit upon sensing a flame failure |
| B) open the control circuit upon sensing an intense flame |
| C) control the modulating pressure control circuit |
| D) sense light from the burner flame |
loading answer...
| Comments |
|---|
| There are no comments for this question. |