A.reduce air charge turbulence
B.induce air swirl
C.deflect hot combustion gas away from the valves
D.oppose the effects of piston induced squish
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A.fuel oil vapor at the sludge tank vent
B.unburned fuel vapors in the scavenge air receiver
C.lube oil vapors in the crank case
D.lube oil vapors in the engine room
A.during the valve overlap period
B.with only the exhaust valve open
C.at a pressure below atmospheric
D.without cooling the cylinders or pistons
A.a short length of heavy duty clear plastic tubing
B.a length of approved flexible nonmetallic hose
C.welded flange connections for all joints
D.aluminum piping with expansion loops
A.pick up more of any increase in load
B.pick up less of any increase in load
C.share an equal amount of any increase in load
D.drop an equal amount of any decrease in load
A.coolant for the distillate
B.coolant for the brine cooler
C.means of heating the feedwater
D.primary means of producing a vacuum within the distiller
最新試題
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
Lube oil cannot be efficiently filtered if its （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
The main purpose of the piston oil scraper rings is to （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.