A.wrist pin bushings
B.compression rings
C.cylinder liner seals
D.cylinder liner sealing ring
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A.Gasoline
B.Water
C.Lubricating oil
D.sulphur compounds
A.back clearance
B.side clearance
C.gap clearance
D.taper clearance
A.reduce fuel weight
B.increase specific gravity
C.separate fuel from lube oil
D.reduce fuel viscosity
A.valve guides
B.oil control rings
C.valve seats
D.compression rings
A.throughput
B.additive percent
C.cetane number
D.TBN number
最新試題
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（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
The condensers located in various stages of a flash evaporator are cooled by（）
Cold weather starting of a diesel engine may be made easier by（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
（） is not installed on the main switchboar.
Flame failure in an automatically fired auxiliary boiler can from a/an （）
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.