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
A、A.seawater contamination
B、B.frequent surface blows
C、C.dissolved oxygen deaeration
D、D.frequent bottom blows
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
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
A、vapor to oxygen B、the flammable limit concentration C、the autoignition concentration D、the lower explosive limit concentration
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
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
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
A、A.vapor to oxygen B、B.the flammable limit concentration C、C.the autoignition concentration D、D.the lower explosive limit concentretion
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
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
A、Hydrazine treatment of condensate B、Frequent compounding C、Chemical cleaning D、Bottom blowing