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NEW QUESTION 95
Leakage current protector is based on the current exceeds the specified value for a period of time, the melt is melted by its own heat, thereby breaking the circuit.
- A. True
- B. False
Answer: B
NEW QUESTION 96
If ups The capacity is 20KVA, Then in normal work,ups The front-end input capacity may be ____________ .
Answer:
Explanation:
25KVA
NEW QUESTION 97
The following air conditioners are comfortable air conditioners ____________ .
Answer:
Explanation:
commercial air conditioners
NEW QUESTION 98
UPS systematic N+X System ratio 2N The power supply guarantee level of the system is higher.
- A. True
- B. False
Answer: B
NEW QUESTION 99
____________ Not part of Huawei's monitoring system NETECO Provide monitoring functions.
Answer:
Explanation:
Software upgrade
NEW QUESTION 100
12V The battery is made of 6 indivual 2V It is composed of battery cells.
- A. False
- B. True
Answer: B
NEW QUESTION 101
Exist UPS in the system, the most comprehensive description of the role of the inverter circuit is
____________ .
Answer:
Explanation:
converting the rectified DC voltage of the mains or the battery voltage into AC voltage
NEW QUESTION 102
One ups The capacity is 200KVA, Its output power factor is 0.9, Then it can drive at most ____________ load.
Answer:
Explanation:
180KW
NEW QUESTION 103
In the air conditioning system, the function of the oil and gas separator is to separate the lubricating oil from the compressor exhaust and return the separated lubricating oil to the compressor.
- A. False
- B. True
Answer: B
NEW QUESTION 104
Common device communication methods are RS232,RS485,FE Wait.
- A. False
- B. True
Answer: B
NEW QUESTION 105
The following are indirect contact heat and moisture treatment equipment ____________ .
Answer:
Explanation:
surface cooler, finned air heater, evaporator
NEW QUESTION 106
When the sunroof actuator senses a smoke alarm, it cannot control the turning sunroof to open automatically.
- A. True
- B. False
Answer: B
NEW QUESTION 107
Gas fire-fighting system refers to a fire-extinguishing system that uses gas ____________ as the fire extinguishing medium. ____________ .
Answer:
Explanation:
including steam and aerosol , just Indeed
NEW QUESTION 108
MCB Circuit breakers can be divided into ____________ and (magnetic trip) according to the principle of tripping.
Answer:
Explanation:
thermal trip
NEW QUESTION 109
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 110
Huawei chilled water air conditioners rely on ____________ to adjust the water flow.
Answer:
Explanation:
electric two-way valve
NEW QUESTION 111
The computer room air conditioner is suitable for scenarios ____________ .
Answer:
Explanation:
modular data centers, container data centers, medium and large data centers
NEW QUESTION 112
R410A The moment the refrigerant is sprayed to the outside, it can freeze human skin and deep muscles in a very short time, and cause skin necrosis at the frostbite site.
- A. False
- B. True
Answer: B
NEW QUESTION 113
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 114
During the implementation process, corrosive operations should be used ____________ .
Answer:
Explanation:
anti-corrosion liquid goggles, acid and alkali resistant gloves, acid and alkali resistant clothing, chemical resistant shoes
NEW QUESTION 115
Through the query ____________, the user can understand the operation of the device.
Answer:
Explanation:
operation log
NEW QUESTION 116
The dynamic environment monitoring system can be deployed in medium and large modular data centers, small modular data centers, container data centers, etc.
- A. False
- B. True
Answer: B
NEW QUESTION 117
____________ is a fire detector that detects smoke particles.
Answer:
Explanation:
Smoke detector
NEW QUESTION 118
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