Practice Free H12-411_V2.0-ENU Exam Online Questions
The basic principle of infrared heaters is that infrared rays heat water to boiling, thereby generating steam.
- A . True
- B . False
Huawei air-cooled air conditioners (25kw and 42kw) have one indoor unit corresponding to one outdoor unit
- A . True
- B . False
Data center power supply and distribution systems usually use low-voltage generator sets. When the power supply distance is long and the system load is large, high-voltage generator sets are used.
- A . True
- B . False
Which of the following are the advantages of UPS N system? (Multiple choice)
- A . No single path failure point
- B . Low hardware configuration cost
- C . UPS is most efficient when operating under the designed high load condition
- D . Reliability is higher than mains electricity
NETECO system can define alarm sounds for different alarm levels
- A . True
- B . False
NetEco management system supports remote alarm notification via SMS, email, etc., prompting users to handle alarms as soon as possible.
- A . True
- B . False
In the monitoring system, which of the following functions can view the real-time image of the computer room?
- A . Access control management
- B . Alarm Browsing
- C . Configuration Design
- D . Video Management
The compressor is the core of the refrigeration cycle and is the power device for the refrigerant to circulate in the system, compressing the low-temperature and low-pressure steam from the evaporator into high-temperature and high-pressure steam. ()
- A . True
- B . False
What are the differences between traditional industrial frequency machines and high frequency machines? (Multiple choice)
- A . Different rectification methods
- B . The output must have a built-in step-up transformer
- C . Different bypass device types
- D . All of the above are true
FM800 has the function of automatic start-up when receiving a call for civil air conditioner
- A . True
- B . False