A.deliver proper fuel quantity to the injection nozzle
B.provide rapid fuel injection cutoff
C.control fuel quantity entering the pump body
D.control fuel pressure delivered to the combustion chamber
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A.of a material harder than the cylinder liner
B.properly lubricated
C.prevented from compressing
D.prevented from rotating during engine operation
A.pre-injection fuel oil treatment
B.lube oil filtration
C.lube oil purification
D.piston cooling
A.their free-floating design
B.their relatively small size
C.the reciprocating motion of the piston
D.their position in the lubrication system
A.hinged rain guards
B.corrosion resistant flame screens
C.dipsticks for measuring oil levels
D.crankcase ventilation fans
A.aluminum plates
B.lead cathodes
C.copper baffle plates
D.sacrificial zincs
最新試題
Which of the following items don’t belong to dock repair works?（）
（） is not installed on the main switchboar.
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
The shipboard oil pollution emergency plan will be invalid after （）
To proceed to the assistance of a ship in distress is（）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Diesel engine air start system check valves are opened by （）
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.
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）