A.seawater contamination
B.frequent surface blows
C.dissolved oxygen deaeration
D.frequent bottom blows
您可能感興趣的試卷
你可能感興趣的試題
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
A.air supply is shut off
B.fuel supply is shut off
C.water supply is shut off
D.safety valve lifts
A.high steam pressure in the boiler
B.abnormally high feed water temperature
C.abnormally high boiler water temperature
D.steam demand exceeding feed pump capacity
最新試題
In a simple mechanical governor, the ().
A thrust bearing is used with a propulsion diesel engine to ().
The highest pressure in a diesel engine cylinder normally occurs ().
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in ().
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?()
The ability of the governor to prevent fluctuations in engine speed is termed ().
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 main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm ().
Lube oil filters remove contaminants more efficiently if the oil being filtered is ().
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a ().