A.free entry of air to the crankcase
B.water entering the crankcase while engine wash-downs are being performed
C.excessive oil leakage during periods of increased blow-by
D.sub-cooling internal components
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A.open late and close early
B.open late and close late
C.fail to open when the engine is cold
D.fail to open at normal operating temperature
A.camshaft beatings
B.main bearings
C.piston crowns
D.cylinder walls
A.the highest point in the system
B.the lowest point in the system
C.near the floor
D.plate level or near the tank top level
A.banjo feed
B.splash feed
C.gravity feed
D.pressure feed
A.stiffen the bedplate in way of the main bearings to increase the engines longitudinal strength
B.accept most of the tensile loading that results from the firing forces developed during operation
C.mount the engine frame securely to the hull to prevent shaft coupling misalignment
D.connect the crosshead solidly to the piston rod
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 （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
In a simple mechanical governor, the （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
An automated diesel engine should normally shut down due to （）