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热通道（hot gas path）
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更多 “热通道（hot gas path）” 相关考题
考题
在船舶航行期间进行明火(热工)作业前，作业人员必须填写_____。A.热工作业许可证书，并请船长审批(hot work permit)B.热工作业申请书(hot work AppliC Ation)C.热工作业安全保证书(hot work form)
考题
The fresh air intake of the inert gas system ______，A.Prevents the flue gas from falling below 3% content of oxygenB.Allows the inert gas piping to be used for gas freeing the tanksC.Opens when there is excessive vacuum on the deck water sealD.Enables outside air to mix with and cool hot flue gasses
考题
You are moving a gas free tank barge to dry dock for repairs．The barge must have onboard a valid ______．A.Gas Free CertificateB.Certificate of InspectionC.Permit to Proceed and Hot Work PermitD.All of the above
考题
2500+在检测到备用通道故障后，有（）告警。A、SCC上报“path-mon-fail”B、SCC上报“hard-bad”C、XCS上报“hard-bad”D、S16上报“path-mon-fail”
考题
单选题Hot gas defrosting uses the hot gas from （） to defrost the evaporator.A
starting air bottlesB
diesel enginesC
boilersD
refrigeration compressors
考题
单选题The device, which is installed in the compressor suction line to prevent liquid from entering the compressor when hot gas defrosting, is called a（）A
re-evaporatorB
receiverC
dehydratorD
solenoid
考题
单选题The fresh air intake of the inert gas system（）.A
prevents the flue gas from falling below 3% content of oxygenB
allows the inert gas piping to be used for gas freeing the tanksC
opens when there is excessive vacuum on the deck water sealD
enables outside air to mix with and cool hot flue gasses
考题
单选题The hot expanding gas rotates the blades of the exhaust turbine, thus giving out large part of its power, which drives （）.A
the oil separatorB
the fresh water generatorC
the compressorD
fire pump
考题
单选题If a large difference exists between the compressor discharge pressure and the pressure corresponding to the existing condensing temperature in a refrigeration system, you should（）.A
increase the flow of the cooling water through the condenserB
adjust the high pressure cutout to maintain the desired pressureC
open the hot gas bypass temporarily to reduce capacityD
purge non-condensable gases to reduce the excess pressure
考题
单选题In the condenser, the hot, high pressure refrigerant gas is cooled by the sea water and becomes（）.A
fresh waterB
vaporC
mixtureD
liquid
考题
单选题Hot gas bypass is one of the methods used to （）A
relieve excessive compressor head pressureB
produce flash gas at the expansion valveC
reduce flooding of the receiver at low loadD
defrost the evaporator coils
考题
单选题Some chloronated flourocarbon refrigerants may decompose into a toxic irritating gas if it is （）.A
stored at temperatures below 60 degrees FahrenheitB
charged into a system having copper fittingsC
allowed to mix with compressor oilD
exposed to an open flame or hot surface
考题
单选题The term diesel engine scavenging means（）A
delivering more air into the cylinder than it would normally receive during an ordinary charging processB
forcing the products of combustion out of the cylinder with the fresh air chargeC
collecting the air charge at the cleanerD
combustion and expansion of hot gas
考题
单选题A refrigeration unit will tend to short cycle when operating （）.A
under heavy loadsB
during hot gas defrostC
under light loadsD
during starting conditions
考题
单选题Which of the following computer recovery sites is the least expensive and the most difficult to test? 以下哪项计算机恢复站点是最便宜的和最难测试的？（）A
non-mobile hot site. 非移动热站B
cold site. 冷站C
warm site. 热站D
mobile hot site. 移动热站
考题
单选题In a compression refrigeration plant the hot, high pressure refrigerant gas is cooled by the sea water and becomes liquid in the （）.A
compressorB
condenserC
throttle valveD
evaporator
考题
单选题Directional intake ports in diesel engines are used to （）.A
reduce air charge turbulenceB
induce air swirlC
deflect hot combustion gas away from the valvesD
oppose the effects of piston induced squish
考题
问答题何谓Hot carrier effect (热载流子效应)?
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