Before any work is to be carried out on a burner in an automatically fired auxiliary boiler, you should always __________.
Official USCG Answer & Rule Citation
Correct Answer: Option C — close all manually operated fuel valves
In USCG Motor Plants (Diesel Engineering), regarding 'Before any work is to be carried out on a burner in an automatically fired auxiliary boiler, you should always', the correct operational principle is: 'close all manually operated fuel valves'.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.