[Jan-2022] H12-411_V2.0 exam torrent Huawei study guide
Use Valid New H12-411_V2.0 Test Notes & H12-411_V2.0 Valid Exam Guide
NEW QUESTION 114
Which of the following statements about the battery is wrong:
- A. The reason for the swelling of the battery is that the pressure becomes higher due to excessive gas evolution.
- B. 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.
- C. When the battery leaks, do not touch it directly with your hands.
- D. The battery room should prevent the temperature from being too high to prevent thermal runaway.
Answer: B
NEW QUESTION 115
The ____________ function of the dynamic loop monitoring system can display the real-time status of the equipment.
Answer:
Explanation:
real-time signal
NEW QUESTION 116
At present, the communication methods used by the dynamic environment monitoring system are
____________ .
Answer:
Explanation:
SNMP, Modbus,Dry contact
NEW QUESTION 117
The following is for high frequency ups The correct description of the rectifier components is.
- A. Complete DC to AC conversion
- B. Complete AC to DC conversion
- C. Realize power factor correction and boost function
- D. Realize power factor correction and pressure reduction function
Answer: B,C
NEW QUESTION 118
Use RS485 Communication method, the maximum communication distance is ____________ Meter.
Answer:
Explanation:
1200
NEW QUESTION 119
During the construction process, the nitrogen bottle operation must be equipped with special ____________ .
Answer:
Explanation:
nitrogen pressure reducing valve, goggles, antifreeze gloves
NEW QUESTION 120
The following ____________ is not the basic function of low-voltage circuit breakers.
Answer:
Explanation:
dual power supply switching
NEW QUESTION 121
The core components of the refrigeration system mainly include ____________ .
Answer:
Explanation:
evaporator, condenser, compressor, expansion valve
NEW QUESTION 122
Common device communication methods are RS232,RS485,FE Wait.
- A. False
- B. True
Answer: B
NEW QUESTION 123
Huawei Monitoring System NETECO Supported functions are ____________ .
Answer:
Explanation:
configuration management, alarm management, access control management, battery monitoring
NEW QUESTION 124
At the end of the discharge of lead-acid batteries, the voltage drops, and the positive and negative active materials are converted into ____________ .
Answer:
Explanation:
PbSO4
NEW QUESTION 125
The following ____________ are used in Huawei's row-level precision air conditioners.
Answer:
Explanation:
electrode humidifiers
NEW QUESTION 126
At a certain atmospheric pressure and water vapor content, the air is cooled down. When the air reaches saturation, it will continue to cool down. The temperature at the time of condensation is ____________ .
Answer:
Explanation:
dew point temperature
NEW QUESTION 127
The basic principle of infrared heaters is that infrared rays heat water to boiling, thereby generating steam.
- A. False
- B. True
Answer: A
NEW QUESTION 128
The components of Huawei's dynamic environment monitoring system are ____________ .
Answer:
Explanation:
NETECO server,ECC800,intelligent ETH Socket, skylight execution Device
NEW QUESTION 129
UPS It can purify the mains input, output stable AC, and protect the load.
- A. False
- B. True
Answer: B
NEW QUESTION 130
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 131
The following statement is correct ____________ .
Answer:
Explanation:
a set NetEco The network management system can monitor and manage multiple micro-modules, one set NetEco The monitoring system can correspond to multiple ECC800
NEW QUESTION 132
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