船舶动力装置试题-第93页-百科知识题库-简明问答题库

当前位置：百科知识 > 船舶动力装置试题

分类：

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]Theneedlevalvewillopenwhenthefuelpressureactingontheneedlevalve（）exertsasufficientforcetoovercomethespringcompression．

[单选]Theneedlevalveintheinjector（）atapre-setpressurewhichensuresthatthefuelwillatomizeonceitentersthecylinder．

[单选]Theneedlevalveinafuelvalvewill（）whenthefuelpressureactionontheneedlevalvetaperedfaceexertsaforcelowerthanthatofthespringcompression．

[单选]Themechanicalefficiencyofanengine（）becauselossesoccurintheformoffriction．

[单选]ThemarinedieselengineisatypeofdieselengineusedonshipsThe（）ofitsoperationisnotverydifficulttounderstand．

[单选]Themajorityofmediumspeedandhighspeedmarinedieselenginesformainorauxiliarydriveoperateonthe（）cycle．

[单选]Themainmovingpartsofadieselengineconsistofthe（）andthepistons．

[单选]Themainfunctionofthelubricationsystemintoenable（）ofafilmofoilbetweenthemovingparts．

[单选]Themainfactorwhichdeterminestheoutputofeachcylinderis（）

[单选]Themainbearingsareprovidedwiththin-walled（），linedwithacopper-leadalloy．

<<<91 929394 95 > >>

随机题库