轮机英语【大管甲类】

考试试题

[单选题]TWO STEP CONTROLER ACTION is mainly__________.
[单选题]Which of the following statements about pump operations is NOT a correct statement?
[单选题]You are having a blow-by on the main engine, but due to the circumstances, it is impossible to stop and do a piston overhaul. What is the correct action to take?
[单选题]In a compression refrigeration plant the refrigerant flows from the expansion valve and through the______ where it absorbs heat from the space being cooled and becomes a gas or vapor.
[单选题]Where are the zinc plates located? __________.
[单选题]In comparison to exhaust valves, intake valves of diesel engines may be fabricated from low alloy steels because ( ).
[问答题]Turbocharging is a method by which energy in the cylinder exhaust gas is used to provide air for combustion. Four-stroke cycle engines may operate in a normally aspirated mode, which means that the suction stroke of the piston draws air into the cylinder and so no pressurized air supply is necessary. A two-stroke cycle engine requires air to be supplied at a pressure above atmospheric and so some means of providing that pressurized supply is necessary. A four-stroke cycle engine can, therefore, operate without a pressurized combustion air supply but a two stroke cycle engine cannot. However, the operation of a pressure charged four-stoke engine under non-pressure charged, or nor really aspirated conditions, is not advised as it is likely to result in severe fouling and possible there real damage.
[单选题]The two major items PSCO are able to observe with respect to the OWS functioning correctly are ______.
[单选题]Which of the following items dont belong to dock repair works?
[单选题]If the flame from combustion in the cylinder of a tow-stroke engine past the piston into the space between the piston and the stuffing box, the accumulation of flammable mixture would be ignited, thus resulting in ____.
[单选题]The piston ring grooves for a standard engine are ______ .
[单选题]The _____ tool is used in precision work to smooth or enlarge a slightly undersized hole.
[单选题]The lubricating oil is pumped from the drain tank, very often with ____in the suction line.
[单选题]Electrical supply is always needed even if only for lighting so after a ship goes into service it is extremely rare for the main bus-bars to be dead, it therefore follows that the bus-bars are continuously alive ___ the life of the ship.
[单选题]As to the modular division of the rail units, which of the following is CORRECT?
[单选题]Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eye?

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第一章 船舶主推进装置
第二章 船舶辅助机械
第三章 船舶电气和自动化
第四章 船舶轮机管理业务
第五章 国际公约、规则
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