第四节 离心泵

制冷剂在冷凝器中基本上是_______放热

第三节空压机的管理

起重机构的泵控型液压系统采用_____限速

Coolingofenginesisachievedbycirculatingacoolingliquidaroundinternal_____ withintheengine.

Beforereplacingapistonyoushouldchecktheringstoseethatallclearancesandgaps are_____thepermissibletolerances.

Foranordinaryfour-strokeenginetheexhaustvalvesopen_____.

Alubricantoftenhastoperformmanydutiesinanysituationinadditiontoits fundamentaljobof_____.

影响8FS10制冷压缩机余隙容积的垫片在_______

_____forthecamshaftgeartrainistakenfromaspurgearwhichforasixcylinder engineisatthecouplingend.

_____thesuperchargepressureis_____poweranenginedevelops.

径向柱塞泵工作时受力条件最差的部件是_____

Engagetheflywheelwiththe_____.

Duringthesuctionstrokethepistonismoving_____.

液压系统中的液压马达出现爬行现象主要是由于_____引起

Administrationsshouldbearinmindthesignificanceof_____inmaintainingsafetyof lifeandpropertyatseaandinpreventingmarinepollution.

Beforepumpingupthecrankcaseoil_____shouldbeworkedbyhandtominimizecorrosive actionontheliners.

空压机的排气量随着储气瓶压力升高而＿

第四章制冷装置 第一节压缩制冷的基本知识

_____theenginesthedieselengineis_____usedengineonboard.

A-framesaremountedonthebedplateandsupport_____andcylinderblock.

空压机惯性式液气分离器中的钢球阀的作用是_____

活塞式空压机排气阀开启频率______

Compressedairissuppliedbyaircompressionto_____.

Eachcrankismadeupoftwocrankwebsjoinedbyacommon_____towhichthebottom endbearingisfitted.

Agovernorautomaticallycontrolsenginespeedbyregulating_____.

巡回检查发现工作中的空压机已经断水应______

液压传动的动力元件通常是指_______

船用活塞式空压机的活塞销与活塞是_____配合活塞销与连杆是_____配合

_____allowsforexpansionandwatermakeupinthewatercoolingsystem.

_____oftheA-framesthereisastrongcastironframecalledthescavengingairbox.

离心泵叶轮一般采用________叶片

两台性能相同离心泵向某系统单独供液时流量为Q扬程为H串联向该系统供液时流量为Q'扬程为H'________

_____isasourceofpowerbywhichthedieselenginemayoperate.

Foradieselenginewhenthepistonisatthe_____theclearancevolumeisthelargest.

二氧化碳浓度对_______库食物保质时间有影响

空压机工作时滴油杯滴油量以每分钟____滴为宜

臭氧不具有_______作用

级差式活塞空压机低压吸排阀和__吸排阀______

对制冷剂热力性质的错误要求是_______

高速小扭矩液压马达的特点是_____

其它条件相同时海水温度越高则制冷装置_______

柱塞式液压泵常用调节_____的方法来调节流量

在同样蒸发压力下R12R22R134a作制冷剂时蒸发温度高低的次序是_______

Anumberofcylinderlinersareenclosedinonecastironcasingtoforma_____.

Failureoffuelinjectionisusuallyduetotroubleinthe_____.

回转式油泵起动前灌油的原因主要是________

液压舵机双泵并联工作比单泵工作_____

绞缆机应能保证在_____级以下风力系住船舶

离心泵调节流量方法中经济性最差的是________调节

离心泵输水时流量和扬程正常但电机电流过大不会是因为________

Afterpassingthroughtheturbinetheexhaustgasisconductedoutintothe_____.

舵机调整安全阀设定值时舵机应位于_____

_____mayhavetwoemergencysourceofpowerthusrequiringtwoemergencyswitchboards.

离心泵在船上不用来作________

_____orairventingarrangementisfittedtothefuelsupplypassage.

下列泵中必须设安全阀的是________

Aftertheorder_____isgiventheairsystemisshutdowntheturninggearputin.

离心泵的通用特性曲线是将离心泵在________不同时的特性曲线画在同一坐标上

Engine_____referstotherelativetimeofpositionofcrankatwhicheachoperation duringthecycleiscommencedandiscompleted.

液压舵机充油时液压油一定要经过_____加入系统与油箱

氟里昂溶入滑油中会使其_______

调速阀的作用是控制_____

Accordingtothewaytheenergyoftheexhaustgasesisutilizedpressure-chargingcan bedividedintotwomainsystemsnamelytheconstant-pressuresystemand_____.

研磨空压机环状阀的运动轨迹以______为宜

液控单向阀在船舶液压机械中常作为_______使用

AdieselenginescrankcaseoillevelisfoundtobetoohighYoushouldsuspectthat_____.

离心泵开大旁通回流阀后泵的流量和主管路流量________

Excessiveclearancesinthemainorcrank-pinbearingswillsometimesbeindicatedby _____beforeanybearingknockisheard.

Foranordinarymodemmarinefour-strokeenginetheinletvalvesclose_____.

Achargeoffreshairisdrawnintotheenginecylinderandthen_____bythemoving piston_____veryhighpressure.

A:PleasetellmethespecificationsandquantityB:_____.

Alltheringsareslightlyroundedontheirexternaltopandbottomedgestokeepthe oilfilmonthecylinderlinerduring_____fornewpistonrings.

Crankshaftsofmediumspeedenginesare_____fromasinglepieceofsteel.

_____fueloils_____lubricatingoilsrequiretreatmentbeforepassingtotheengine.

空压机重要而且最易损坏的部件是____

限定最大舵角的原因主要是_____

船用液压油的主要污染指标不包括_____

Dieselenginesarestartedbysupplying_____intothecylindersintheappropriate sequencefortherequireddirection.

Bearingknocksarelikelytooccurfrom_____.

Emulsionoilsandsodiumnitritearebothapprovedadditivesbut_____cannotbeused ifanypipesaregalvanizedorifsolderedjointsexist.

_____isfullyfloatinginbothconnectingrodsmallendandthepistonskirt.

_____shouldnotundertakeanytaskwhichwillinterferewiththesupervisionduties relatingtothemainmachineryandassociatedequipment.

船用离心泵需向压力较高容器供液时最常用的方式是________

_____issecuredbymeansofside-chockboltsandend-chockbolts.

制冷装置中吸气管是指从_______通压缩机的管路

Coolingofengineisachievedbycirculationacoolingliquidaroundinternalpassages withinthe_____.

Castironcarrierrings_____machinedgroovesareprovidedforallthepistons.

Eachcylinderisclosedatthetopbya_____madeofaspecialheat-resistantsteel.

Cracksinthecylindersandcylindercoversmay_____unequalheating.

制冷剂流过膨胀阀工作正常时是由_______变成_______

A_____isthefoundationoftheenginewithoutthesupportofwhichtheshaftalignment inparticularandenginestructureasawholewouldinevitablybelost.

液压油有水混入将发生如下变化_____

Beforestartingtheenginetheairbottleshouldbe_____.

离心泵排出阀关小后泵的________

下列液压控制阀中属于压力控制阀的是_______

海船最大舵角一般定为_____

第四节锚机及其液压系统的维护管理

_____istheremovalofexhaustgasesbyblowinginfreshair.

Anelectricallydrivenautomaticallyoperatingauxiliaryblowerisprovidedforslow speedand_____ofalowspeeddieselengine.

离心泵汽蚀破坏不会发生在________