单项选择题
When lighting off an auxiliary boiler, which of the problems listed could cause the burners to sputter?（）
A.cold fuel oil B.low fuel oil pressure C.low atomizing steam pressure D.water in the fuel oil
单项选择题 The amount of chloride content in the water of an auxiliary boiler can be reduced by（）
单项选择题 The purpose of designing some waste heat boilers with sinuous fire tubes, is to（）
单项选择题 The water in an auxiliary boiler should be chemically tested daily for alkalinity and（）
