The burner assembly on an automatically fired auxiliary boiler fitted with variable capacity, pressure atomizing burners, maintains steam pressure by __________.
A
cycling on and off
B
changing fuel oil return pressure
C
changing the speed of a rotary cup
D
varying air pressure supplied to the nozzle
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Question 1 / 205eccefa2bacbc34ba4d47bd3
Question 1 of 205eccefa2bacbc34ba4d47bd3
The burner assembly on an automatically fired auxiliary boiler fitted with variable capacity, pressure atomizing burners, maintains steam pressure by __________.
The burner assembly on an automatically fired auxiliary boiler fitted with variable capacity, pressure atomizing burners, maintains steam pressure by __________.