船舶动力装置试题-第97页-百科知识题库-简明问答题库

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旅游历史科学天文体育文学音乐文化法律常识政治地理影视化学生活自然军事其他

[单选]Thefour-strokeengineisusedfor（）andsometimesformainpropulsionwithagearboxtoprovideapropellerspeedofbetween90to120rev/min．

[单选]Thefourstrokesarecalledsuction，compression，expansionandexhaust，butonly（）strokeprovidesthepowertodrivetheship．

[单选]Thefinefilterswillbearranged（）onecanbecleanedwhiletheotherisoperating．

[单选]Thefilmofoilbetweentheringsandthelinerisnotonlyessentialforthelubricationbutalso（）achievingagasseal．

[单选]ThefigurethatthevolumeofairatBDCisdividedbythevolumeofairatTDCistermedas（）．

[单选]TheexternalcircumferenceofapairofmainbearingshellsisslightlylargerthanthatoftheboreofthehousingwhichreceivesthemThedifferenceistermed（）．

[单选]Theexhaustgasesforanewengineshouldbe（）whentheengineoperatesunderfullload．

[单选]Theenginewillfailtostartunless（）．

[单选]“Theenginenotobtainingthesufficientspeedforfiring”meansthat（）．

[单选]Theenginemaylosepowerorslowdownduringrunning，whenthisoccurs，thefirstcausepossiblemaybehotbearingsand（）ofthepistonsinthecylinders．

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