Splash
Gravity
Pressure
Bypass
第1题：
Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an _____.
A.over-speed trip
B.audible/visual alarm
C.the ships/boats general alarm
D.reserve oil storage tank
第2题：
decreased compression pressure
increased lube oil pressure
lower lube oil temperature
excessive leakage past the piston rings
第3题：
Proper lubrication of the main bearings is more easily obtained in a single acting, four-stroke/cycle diesel engine than in a tow-stroke/cycle diesel engine because________.
A.The direction of pressure on the journal in four-stroke engine is continuously
B.positive feed lubricators are installed on all bearings of four-stroke engine, whereas as a splash feed system is used on tow-stroke engine
C.four-stroke engines usually utilize a heavier grade of oil than tow-stroke engines
D.Low-stroke engines usually consume less lube oil than four-stroke engines
第4题：
clogged lube oil piping
excessive valve-guide clearance
high lube oil viscosity
low lube oil temperature
第5题：
runs out of fuel
has low lubricating oil pressure
exceeds a set maximum speed
has high cooling water temperature
第6题：
In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces_______ .
A.all of the oil used by the engine through a filter
B.some of the oil used by the engine through a filter
C.some of the oil used by the engine through a centrifuge
D.all of the oil used by the engine through a centrifuge
第7题：
camshaft beatings
main bearings
piston crowns
cylinder walls
第8题：
On a medium-speed main propulsion diesel engine, the crank-pin or crank journalbearings receive lubricating oil from( ).
A.a spindle lubricator
B.an oil jet
C.internal splashing
D.drilled passages in the crankshaft
第9题：
to be kept
logged
changed
has remained
第10题：
banjo feed
splash feed
gravity feed
pressure feed