A.remove suspended and precipitated solids from the boiler water
B.completely drain the boiler in an emergency situation
C.prevent hardened scale deposits in the water drum
D.remove floating impurities from the oily water surface
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A.around the engine
B.around the cooler
C.to the expansion tank
D.overboard
A.seawater contamination
B.frequent surface blows
C.dissolved oxygen deaeration
D.frequent bottom blows
A.total dissolved solids
B.salt contamination
C.water hardness
D.chlorine contamination
A.reduce mean effective pressure
B.decrease average compression pressure
C.decrease air charge density
D.increase power output
A.air or water in the furnace
B.combustion pulses
C.fuel oil pump failure
D.flame failure
最新試題
Diesel engine control can be obtained by the bridge （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
Routine monitoring of a diesel engine should include （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Maximum horsepower of a diesel engine is attained （）.
An automated diesel engine should normally shut down due to （）
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.