[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3a_SHgXN4gKkhPqELt5Zo7eQwfVmiKtrZueVm_BIV3s":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-11-08 06:53:41",104020150,[8,9,10,11],"Steam engine","Gasoline engine","Gas turbine","Diesel engine",{"courseId":13,"courseImg":14,"courseName":15},"efd1bdad706e599d9b73ea991cc230b4","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd9eaef8ea2690faba12fec4caf2d0cf6.jpg","轮机英语","Of all types of commercial(商用) internal combustion engines now built, which one usually gives thebest performance,and hence it is quite commonly used in marine applications(应用),especially(尤其) in larger sizes?( )",[18,29,38,47,56,65,74,77,86,96],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],104020142,[22,23,24,25],"method of supplying air","cooling system","method of igniting fuel燃油点火方式","valve operating mechanism","The main operating characteristic 主要运行特征of diesel engines 柴油机which distinguishes them from区别于 other internal combustion engines内燃机 is the( )","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],104020143,[33,34,35,36],"flexibility","efficiency效率","reliability","controllable ability","The low speed diesel engines 低速柴油机are tall 高的to allow for 考虑到,顾及long strokes长行程 which improve改善 engine( )",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],104020144,[42,43,44,45],"low temperature","internal combustion","spark plug","gear box","A slow speed or medium speed diesel engine is a high pressure propulsion plant with.( )",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],104020145,[51,52,53,54],"use energy from fuel burned outside their cylinders","burn fuel in a combustion chamber that moves back and forth","burn fuel in a chamber where its energy moves a piston up and down","a continuous combustion process to impart rotary motion to the pistons","Diesel engines are classified as reciprocating internal combustion engines because they( )",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":27,"type":28},[],104020147,[60,61,62,63],"turbines","engines","machines","mechanisms","The diesel engines have an important role in the shipping industry of their improved engine efficiencies and designs compared to other forms of propulsion such as steam or gas( )",{"answer":66,"createTime":5,"id":67,"options":68,"question":73,"source":27,"type":28},[],104020149,[69,70,71,72],"bulk carriers","general cargo ships","passenger ships","reefers","The three largest categories of ships are container ships,( ) (for bulk goods such as grain, coal, ores, etc.) and tankers, which again can be divided into more precisely defined 24classes and types",{"answer":75,"createTime":5,"id":6,"options":76,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":27,"type":28},[],104020152,[81,82,83,84],"gas rather than steam","steam rather than gas","fuel rather than steam","steam rather than exhaust","Gas turbines differ from steam turbines in that( )is used to turn a shaft",{"answer":87,"createTime":88,"id":89,"options":90,"question":95,"source":27,"type":28},[],"2023-11-08 06:53:42",104020154,[91,92,93,94],"at relatively low speed","at anticlockwise speed","at relatively middle speed","at clockwise speed","In the merchant ship, a propeller,in order to operate efficiently, must rotate( )",{"answer":97,"createTime":88,"id":98,"options":99,"question":104,"source":27,"type":28},[],104020156,[100,101,102,103],"increased horsepower","reduced efficiency","increased heat loss","lower cylinder pressure","Increasing the compression ratio压缩比 of a diesel engine while maintaining保持 the designed rate速率 of fuel flow will result in ( )"]