Engine : Expired / Motor Plants and Auxiliary Boilers - 691/354
|
|---|
| « Previous Question |
| Before any work is done on a burner in an automatically fired auxiliary boiler, you should always __________. |
| A) block all control valves |
| B) allow the boiler to cool completely |
| C) lock all safety interlock switches closed |
| D) close all manually operated fuel valves |
loading answer...
| Comments |
|---|
| There are no comments for this question. |