H12-411_V2.0-ENU V1

What is the requirement for the duration of a single fault in a Class II power grid?A . ≤8 hoursB . ≤4 hoursC . ≤0.5 hD . ≤6 hoursView AnswerAnswer: D

According to Heinrich 's Law, in a machinery accident, which of the following is the proportion of casualties (serious injuries or deaths), minor injuries, and unsafe behaviors?A . 1:10:100B . 1:50:200C . 1:35:400D . 1:29:300View AnswerAnswer: D

Which of the following does not belong to the components of chilled water air conditioner?A . Condensing agentB . NoneView AnswerAnswer: A

Which of the following is not one of the four major components of an air-cooled air conditioner?A . CompressorB . EvaporatorC . FanD . CondenserView AnswerAnswer: C

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?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?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?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?A . NetCol8000-E220B . NetCol5000-C065C . NetCol5000-A042D . NetCol8000-C070View AnswerAnswer: D

Which of the following belongs to air-cooled row-level air conditioner?A . NETCOL5000-AB . No other optionsView AnswerAnswer: A