A.Piston wrist pin bushing
B.turbine bearing
C.Spring bearing
D.Diesel engine main bearing
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A.higher firing pressure
B.more power output
C.lower fuel pressure
D.less power output
A.The chromium will not wear out the piston rings
B.The chromium strengthens the liners in the way of the scavenging air ports
C.Chromium eliminates the need for oil scraper rings
D.Pores in the plating aid in maintaining the lube oil film
A.decrease until the engine speed increases
B.increase as the load increases
C.decrease as the load
D.increases remain unchanged
A.SOLAS
B.MARPOL
C.STCW
D.Ballast Water convention
A.Lube oil is diluted and its viscosity is reduced
B.Sulfuric acid is formed
C.Bearings become pitted ad immediately fail
D.Valve stems develop sludge deposits
最新試題
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.
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（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
（） is not installed on the main switchboar.
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
The treatment of the fuel oils involves storage, heating, filtering and（）
The shipboard oil pollution emergency plan will be invalid after （）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Using a file without a handle may result in （）