If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler， the cause maybe （）.
If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler， the cause maybe （）.
Before an auxiliary boiler is shutdown for an extended period of time， the water in the boiler should have a pH value of （）.
Before an auxiliary boiler is shutdown for an extended period of time， the water in the boiler should have a pH value of （）.
The water wall of drum boiler mainly absorbs the radiation heat of high temperature flame in the boiler and generates steam (). A: Right B: Wrong
The water wall of drum boiler mainly absorbs the radiation heat of high temperature flame in the boiler and generates steam (). A: Right B: Wrong
A SECONDARY function of a waste heat boiler is to （）.
A SECONDARY function of a waste heat boiler is to （）.
The purpose of the safety relief valves installed on an auxiliary boiler is to （）.
The purpose of the safety relief valves installed on an auxiliary boiler is to （）.
In an auxiliary boiler steam and water system， the highest pressure will be in the （）.
In an auxiliary boiler steam and water system， the highest pressure will be in the （）.
27.The furnace of a oil fired boiler should be ____ before the operating burner is№
27.The furnace of a oil fired boiler should be ____ before the operating burner is№
The concentration of total dissolved solids in the water of an auxiliary boiler can increase as a result of （）.
The concentration of total dissolved solids in the water of an auxiliary boiler can increase as a result of （）.
下列英语单词中文意思是“一水”的是（）. A: AA˙ B: Boiler C: Ccook D: Dsailer
下列英语单词中文意思是“一水”的是（）. A: AA˙ B: Boiler C: Ccook D: Dsailer
()enables water to be blown down or emptied from the boiler A: scum valve B: soot blower C: blow-down valve D: vent cock
()enables water to be blown down or emptied from the boiler A: scum valve B: soot blower C: blow-down valve D: vent cock