A.of a material harder than the cylinder liner
B.properly lubricated
C.prevented from compressing
D.prevented from rotating during engine operation
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A.pre-injection fuel oil treatment
B.lube oil filtration
C.lube oil purification
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A.their free-floating design
B.their relatively small size
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A.hinged rain guards
B.corrosion resistant flame screens
C.dipsticks for measuring oil levels
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A.aluminum plates
B.lead cathodes
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A.bearing pressure in a four-stroke\cycle acting single diesel engine is continually reversed
B.bearing pressure in a two-stroke\cycle single acting diesel engine is continually reversed
C.the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engine
D.two-stoke/cycle diesel engines require more complicated lubrication piping
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Flame failure in an automatically fired auxiliary boiler can from a/an （）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
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During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.