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For the unsaturated air, the relationship of size among the dry bulb temperature, wet bulb temperature and dew point temperature is ().
For the unsaturated air, the relationship of size among the dry bulb temperature, wet bulb temperature and dew point temperature is ().A . Dry bulb temperature> Dew point temperature> Wet bulb temperatureB . Dry bulb temperature> wet bulb temperature> dew point temperatureC . Wet bulb temperature> dew point temperature> dry...
Which of the following belongs to air-cooled line air conditioning?
Which of the following belongs to air-cooled line air conditioning?A . NetCol5000-CB . NetCol5000-AC . NetCol8000-CD . NetCol8000-AView AnswerAnswer: B
The parameters that can reflect the energy efficiency state and power usage effectivenes of the data center are ().
The parameters that can reflect the energy efficiency state and power usage effectivenes of the data center are ().A . COPB . PUEC . IPD . OPEXView AnswerAnswer: B
MCB circuit breaker can be divided into B, C, D, Z, K class according to different tripping characteristics.
MCB circuit breaker can be divided into B, C, D, Z, K class according to different tripping characteristics. For IT loads, the () level tripping characteristics should be used.A . BB . CC . DD . ZView AnswerAnswer: B
Data center usually uses the gas fire system.
Data center usually uses the gas fire system.A . TrueB . FalseView AnswerAnswer: A
When the load is 60KW, the capacity of each UPs is 100KVA, the power factor is 0.95, when the system must be redundancy configuration, how many UPS does it need at least?
When the load is 60KW, the capacity of each UPs is 100KVA, the power factor is 0.95, when the system must be redundancy configuration, how many UPS does it need at least?A . 2B . 3C . 4D . 5View AnswerAnswer: A
The core components of the refrigeration system include (). (Multiple Choice)
The core components of the refrigeration system include (). (Multiple Choice)A . EvaporatorB . CondenserC . CompressorD . Expansion valveView AnswerAnswer: ABCD
ATS Dual Power Automatic Transfer Switch can achieve the switching of two-way power's fast loading machine.
ATS Dual Power Automatic Transfer Switch can achieve the switching of two-way power's fast loading machine.A . TrueB . FalseView AnswerAnswer: A
In the access control system interface, the fuctions can be achieved are (). (Multiple Choice)
In the access control system interface, the fuctions can be achieved are (). (Multiple Choice)A . Show the switch status of the doorB . Users addedC . Authority allocationD . View access recordsView AnswerAnswer: ABCD
Which of the following outdoor modles belongs to double fan?
Which of the following outdoor modles belongs to double fan?A . NetCol500-A032B . NetCol500-A072C . NetCol500-A038D . NetCol500-A026View AnswerAnswer: B
