A.1/2
B.1
C.2
D.3
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A.reciprocating pump
B.vane pump
C.screw pump
D.centrifugal pump
A.reciprocating pump
B.vane pump
C.mono pump
D.axial-flow pump
A.The rams work inside cylinders
B.The cylinders have glands sealing their open ends
C.The rams are connected to a cross-head
D.The cross-head is mounted on the rudder stock
A.an exciter driven by the same shaft with the generator
B.an exciter driven by external prime mover
C.generator itself
D.either A and B
A.oily water separator
B.sewage treatment plant
C.fuel oil separator
D.incinerator
最新試題
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
（） is not installed on the main switchboar.
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
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.
The condensers located in various stages of a flash evaporator are cooled by（）
To proceed to the assistance of a ship in distress is（）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
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（）
The cetane rating of diesel fuel is an indication of the （）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）