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 （）
Diesel engine air start system check valves are opened by （）
Which of the following items don’t belong to dock repair works?（）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
To proceed to the assistance of a ship in distress is（）
The cetane rating of diesel fuel is an indication of 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（）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）