decrease the time required between cleanings
removes all large and small foreign objects
ensure a positive flow of oil at all times
ensure that all lube oil has been treated twice
第1题：
the extra weight required for the diesel reduction gearing
a minimum speed for the engines that limits the minimum speed of the vessel
the higher fuel consumption per SHP
the low efficiency of the system when a controllable pitch propeller is used
第2题：
dial indicator
outside caliper
bridge gauge
tram rod
第3题：
The upper piston rings m large, slow-speed, two-stroke/cycle diesel engines are most effectively lubricated by oil ____.
A.fed from mechanical lubricators
B.thrown off from the main bearings
C.supplied from wick fed drip lubricators
D.flow from a centrifugal or banjo oiler
第4题：
wheelhouse control station
engine room control station
captains office
chief engineers office
第5题：
moving the governor control to stop
shutting off the lubricating oil supply
tripping the governor emergency stop lever
shutting off the fuel supply
第6题：
the same, whether at sea, or during maneuvering
adjusted during each hour of operation while at constant RPM
higher at sea than while maneuvering
lower at sea than while maneuvering
第7题：
Manually trip the over-speed device
Interrupt the fuel flow to the engine
Disengage the safety interlock
Slide the camshaft to the neutral position
第8题：
The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by_______.
A.large conical springs
B.compressed air pressure
C.hydraulic pressure
D.exhaust gas pressure
第9题：
direct action of cam shaft
compressed air pressure
hydraulic “push rods”
direct action of the main piston moving down
第10题：
banjo feed
splash feed
gravity feed
pressure feed