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In an air conditioning system, which of the following uses water cooling or air cooling to cool the high-temperature and high-pressure gas discharged from the compressor and release the heat to the outside?
In an air conditioning system, which of the following uses water cooling or air cooling to cool the high-temperature and high-pressure gas discharged from the compressor and release the heat to the outside?A . EvaporatorB . CondenserC . CompressorD . Expansion valveView AnswerAnswer: B
Which of the following outdoor unit models has a dual fan?
Which of the following outdoor unit models has a dual fan?A . NETCOL500-A072B . No other optionsView AnswerAnswer: A
Which of the following is the temperature of the cold channel air inlet area of the data center specified in GB50174-2017?
Which of the following is the temperature of the cold channel air inlet area of the data center specified in GB50174-2017?A . 11 ℃ ~19 ℃B . 13 ℃ ~22 ℃C . 18 ℃ ~27 ℃D . 20 ℃ ~35 ℃View AnswerAnswer: C
Which of the following devices cannot be connected to the southbound interface of the dynamic environment monitoring system?
Which of the following devices cannot be connected to the southbound interface of the dynamic environment monitoring system?A . Precision air conditioningB . UPSC . Access control equipmentD . Superior network administratorView AnswerAnswer: D
Which of the following models is Huawei's room-level water-cooled air conditioner?
Which of the following models is Huawei's room-level water-cooled air conditioner?A . NetCol8000-E220B . NetCol5000-C065C . NetCol5000-A042D . NetCol8000-C070View AnswerAnswer: D
Which of the following belongs to air-cooled row-level air conditioner?
Which of the following belongs to air-cooled row-level air conditioner?A . NETCOL5000-AB . No other optionsView AnswerAnswer: A
In the power supply and distribution system of the data center, if a power outage occurs, the backup switching between AC power and AC power or between AC power and diesel generator is generally completed by ().
In the power supply and distribution system of the data center, if a power outage occurs, the backup switching between AC power and AC power or between AC power and diesel generator is generally completed by ().A . Automatic transfer switch systemB . Diesel generator systemC . Low voltage power...
What is the English abbreviation for sealed valve-regulated lead-acid battery?
What is the English abbreviation for sealed valve-regulated lead-acid battery?A . VRLAB . GELC . AGMD . GFWView AnswerAnswer: A
Which of the following descriptions about data center monitoring systems is wrong?
Which of the following descriptions about data center monitoring systems is wrong?A . Can monitor power system, environmental system, fire protection system, etc.B . Remote monitoring is not supportedC . Can provide multiple alarm methods such as voice and short messageD . Intelligent monitoring system can improve management efficiencyView AnswerAnswer:...
Which of the following components does not belong to the smoke exhaust system in the fire protection system?
Which of the following components does not belong to the smoke exhaust system in the fire protection system?A . Pressurized blowerB . Smoke ExhaustC . Air ductD . Air sampling tubeView AnswerAnswer: D
