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
Proper filtering and straining of fuel oil is important because the （）.
A thrust bearing is used with a propulsion diesel engine to （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
The ability of the governor to prevent fluctuations in engine speed is termed （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
In using reduction gears to obtain efficient propeller speeds, （）.
Diesel engine control can be obtained by the bridge （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.