过程设备设计复习题及答案

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1、过程设备设计复习题及答案一、单选题1.压力容器导言1.1所谓高温容器是指下列哪一种：（A）A.工作温度在材料蠕变温度以上B.工作温度在容器材料的无塑性转变温度以上C.工作温度在材料蠕变温度以下D.工作温度高于室温1.2GB150适用下列哪种类型容器：（B）A.直接火加热的容器B.固定式容器C.液化石油器槽车D.受辐射作用的核能容器1.3一个载荷稳定均匀的内压厚壁圆筒最好采用哪种设计准则：（B）A弹性失效B塑性失效C爆破失效D弹塑性失效1.4有关《容规》适用的压力说法正确的是：（B）A.最高工作压力大于0.01MPa(不含液体静压力)B.最高工作压力大于等于0.

2、1MPa(不含液体静压力)C.最高工作压力大于1MPa(不含液体静压力)D.最高工作压力大于等于1MPa(不含液体静压力)1.5毒性为高度或极度危害介质PV>=0.2MPa.m3的低压容器应定为几类容器：（C）A.Ⅰ类B.Ⅱ类C.Ⅲnthemainterminal,andthetelephoneOfficeisresponsibleforprovidingtheappropriatesizeadapterpatchpanelsandelectricalprotectionunit.(Shuttlebus)wiring(IDF)setupintheworksho

3、ponthesecondfloorofthebuilding,locatedintheDistrictofweakelectricalcabinets(well).EngineroomplacedinsidetheCabinet,IDFplacedastandard40Ucabinetsforinstallationofnetworkandwiringdevices,managementcomputerandtelephoneinformation.CabinetdistributionframearemadeofSuperfiveRJ45patchpanel

4、horizontaltwistedpairconnections.Computerinformationmanagement,adminareausingthejumpers,whichusesprivateRJ45-RJ45softjumpersfornetworkdeviceswithjumpershoppingbetweenallswitches,changes,expansionandmaintenanceweredonequicklyinthewiringcloset.TwistedlengthCentreroomislocatedontheseco

5、ndfloor,outwardradiationofeachline(exceptsomepointsmayexceed)doesnotexceed100metresinlength,allinformationforthevariousfloorsallrooms(distributionCabinet)unifiedmanagement.Districtworkshopbuildingdistributionlines(IDF)viafiberopticcablesconnectedtothetotalroomcabinets.Fiberlengthwer

6、e:workshopstwoIDF:totalmorethan1200squaremeters,doublethenumberofstrandscanbecalculatedbymultiplyingtheaveragelengthofthenumberofinformationpointsare.Averagelevelofeachlengthofcable:L=[(S1+S2)/2]+L1+L2l:averagelengthofcable;L1:MDFcableallowance;L2:otherallowancesS1:minimumhorizontal

7、cablelength;S2:maximumhorizontallengthofcable;Officebuildingofinformation:aminimumof26meters,thelongestwas92meters,L=[(28+92)/2]+2.5+1=62.5m;Totallengthof62.5mx792=49500-meterineachbox(KFT)by300meterspercarton;Thetwisted-paircableboxyouwant=49500÷300=165(KFT);lossesnotincluded,eacha

8、bout15meters.Metall