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【单项选择题】

The concentration of total dissolved solids in the water of an auxiliary boiler can increase as a result of ().

A、A.seawater contamination

B、B.frequent surface blows

C、C.dissolved oxygen deaeration

D、D.frequent bottom blows

更多“The concentration of total dissolved solids in the water of an auxiliary boiler can increase as a result of ().”相关的问题
第1题

A、Concentration of weight aft  B、Concentration of weight forward  C、Concentration of weight amidships  D、Concentration of weight at both ends of the vessel  

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第2题

A、the center of volume of the immersed portion of the vessel  B、the center of gravity of the water plane  C、that point at which all the vertical downward forces of weight are considered to be concentrated  D、that point at which all the vertical upward forces of buoyancy are considered to be concentrated  

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第3题

A、vapor to oxygen  B、the flammable limit concentration  C、the autoignition concentration  D、the lower explosive limit concentration  

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第4题

A、evenly distributed vertically and the double bottoms are full  B、concentrated low and the double bottoms are empty  C、concentrated low and the double bottoms are full  D、concentrated high and the double bottoms are empty  

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第5题

A、evenly distributed vertically and the double bottoms are full  B、concentrated low and the double bottoms are empty  C、concentrated low and the double bottoms are full  D、concentrated high and the double bottoms are empty  

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第6题

A、evenly distrubuted vertically and the double bottoms are full  B、concentrated low and the double bottoms are empty  C、concentrated low and the double bottoms are full  D、concentration high and the double bottoms are empty  

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第7题

A、A.vapor to oxygen  B、B.the flammable limit concentration  C、C.the autoignition concentration  D、D.the lower explosive limit concentretion  

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第8题

A、the amount of oxygen in a space  B、the presence of harmful amounts of carbon monoxide  C、concentrations of explosive gas  D、All of the above  

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第9题

A、air temperature at the time of the exposure  B、air pressure at the time of the exposure  C、humidity at the time of exposure  D、duration of the exposure  

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第10题

A、Hydrazine treatment of condensate  B、Frequent compounding  C、Chemical cleaning  D、Bottom blowing  

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