A.suction pressure regulator
B.thermostatic bypass valve
C.sea water temperature
D.water level in the expansion tank
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A.operated manually once an hour
B.operated until the engine has started
C.placed into operation only at maximum load
D.adjustable to meet lubrication requirements
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
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
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
A.Clogged air intake falters
B.Piston blow-by
C.A defective after-cooler
D.Faulty exhaust valves
最新试题
The highest pressure in a diesel engine cylinder normally occurs ().
Routine monitoring of a diesel engine should include ().
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the ().
Maximum horsepower of a diesel engine is attained ().
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as ().
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST ().
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm ().
An automated diesel engine should normally shut down due to ()
In a simple mechanical governor, the ().
The main purpose of the piston oil scraper rings is to ().