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NEW QUESTION 67
The general method of connecting lead-acid batteries is to string first and then parallel.
- A. True
- B. False
Answer: A
NEW QUESTION 68
For unsaturated air, dry bulb temperature, wet bulb temperature, A The relationship between point temperature is ____________ .
Answer:
Explanation:
dry bulb temperature>wet bulb temperature>dew point temperature
NEW QUESTION 69
The air-conditioning energy efficiency ratio is the ratio of the effective input power to the cooling capacity, and its value is W/W Express.
- A. True
- B. False
Answer: B
NEW QUESTION 70
DB9 It is an agreement.
- A. True
- B. False
Answer: B
NEW QUESTION 71
____________ is a fire detector that detects smoke particles.
Answer:
Explanation:
Smoke detector
NEW QUESTION 72
In the main road mode, when ups The front-end voltage is at 220V±10%When fluctuating,ups The output voltage will also have Larger fluctuations.
- A. True
- B. False
Answer: B
NEW QUESTION 73
The following ____________ options do not belong to the characteristics of direct air-cooled air-conditioning.
Answer:
Explanation:
unlimited installation distance
NEW QUESTION 74
The administrator cannot segment the login time and login of other users through the Huawei monitoring system IP Address restrictions.
- A. True
- B. False
Answer: B
NEW QUESTION 75
Under the same load conditions,ups The backup time is mainly determined by the battery capacity and the number of battery cells. The larger the battery capacity, the longer the backup time.
- A. True
- B. False
Answer: A
NEW QUESTION 76
Water cooling/The refrigerant of ethylene glycol air conditioner has been flushed before leaving the factory, so it is convenient and quick to install on site.
- A. True
- B. False
Answer: A
NEW QUESTION 77
The function of Huawei's chilled water air conditioner plug-in frame power supply is to provide a stable power supply for the fans.
- A. True
- B. False
Answer: A
NEW QUESTION 78
ATS The dual power supply automatic switch can realize the fast mechanical switching of the two power supplies.
- A. True
- B. False
Answer: A
NEW QUESTION 79
The following ____________ is not the basic function of low-voltage circuit breakers.
Answer:
Explanation:
dual power supply switching
NEW QUESTION 80
Which of the following statements about the battery is wrong:
- A. When the battery leaks, do not touch it directly with your hands.
- B. The reason for the swelling of the battery is that the pressure becomes higher due to excessive gas evolution.
- C. When the battery reaches the end of its service life, it does not require special treatment and can be sold directly to scrap for recycling.
- D. The battery room should prevent the temperature from being too high to prevent thermal runaway.
Answer: C
NEW QUESTION 81
Reflects the dryness of the air, the smaller the value, the drier the air.
- A. Relative humidity
- B. Dry bulb temperature
- C. Moisture content
- D. Wet bulb temperature
Answer: A
NEW QUESTION 82
ABC Circuit breakers are mainly used IT Load front end, such as ups Inside the output cabinet.
- A. True
- B. False
Answer: B
NEW QUESTION 83
During the battery installation process, the maintenance channel of the high-voltage battery pack used should be insulated.
- A. True
- B. False
Answer: A
NEW QUESTION 84
The dynamic environment monitoring system can be deployed in medium and large modular data centers, small modular data centers, container data centers, etc.
- A. True
- B. False
Answer: A
NEW QUESTION 85
The function of the following ____________ components is to help return oil.
Answer:
Explanation:
oil trap
NEW QUESTION 86
The possible functions of the dynamic loop monitoring system include ____________ .
Answer:
Explanation:
operation status monitoring, operating parameter display, alarm information display, remote Process management
NEW QUESTION 87
It can be implemented in the alarm management function of the dynamic environment monitoring system
____________ .
Answer:
Explanation:
locating alarms, querying alarms
NEW QUESTION 88
In the dynamic environment monitoring system, ____________ is used to indicate the severity of the corresponding fault.
Answer:
Explanation:
alarm level
NEW QUESTION 89
Huawei Monitoring System NETECO Support video real-time browsing.
- A. True
- B. False
Answer: A
NEW QUESTION 90
PUE The closer the value ____________, indicating that the energy efficiency status of the data center is good.
Answer:
Explanation:
1
NEW QUESTION 91
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