A、be increased
B、be decreased
C、remain constant
D、either be increased or remain constant
更多“The soot blowers are operating in the oil fuel boiler the air/fuel ratio must （） throughout the action, and blowers greased after use.”相关的问题
A、A.excess stresses will not be set up in the boiler B、B.the decks will not be covered with soot C、C.the soot will be swept toward the uptakes D、D.there will not be a loss of steam pressure
A、prevent soot fires in the exhaust system B、prevent exhaust gas erosion of the tubes C、increase the velocity of exhaust gas flow D、increase the rate of heat transfer
A、secure all ventilation B、shut down the exhaust blowers C、shut down the intake blowers D、ventilate the cargo holds
A、Suez Canal searchlight, air compressor and air conditioning compressor B、Air compressor, boiler blower and refrigeration plant C、Boiler blower, Suez Canal searchlight and refrigeration plant D、Suez canal searchlight, air compressor and boiler blower
A、start the exhaust blowers B、start the intake blowers C、not ventilate the cargo holds D、ventilate the cargo holds
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