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Best Quality Huawei H12-411 Exam Questions
Huawei H12-411 Exam Syllabus Topics:
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NEW QUESTION 85
In construction process, the existence of objects falling and impact of operations, () should be used. (Multiple choice)
- A. seat belt
- B. Insulation gloves
- C. helmets
- D. anti-smashing shoes
Answer: C,D
NEW QUESTION 86
In air-conditioning systems, the role of () is to cool the high-temperature and high-pressure gas discharged from the compressor by using water-cooled or air-cooled to release heat to the outside world.
- A. Condenser
- B. Evaporator
- C. compressor
- D. Expansion valve
Answer: A
NEW QUESTION 87
Which of the following is not the current harm to the human body?
- A. split
- B. suffocation
- C. spasm
- D. Human ventricular fibrillation
Answer: A
NEW QUESTION 88
Valve-regulated lead-acid battery safety valve has () function. (Multiple choice)
- A. filter acid mist
- B. Flame retardant
- C. Adjust the battery pressure inside and outside
- D. Anti-battery internal pollution
Answer: A,C,D
NEW QUESTION 89
RER (Renewable Energy Ratio) is used to measure data center using Renewable Energy, so as to promote the solar Energy, wind Energy, hydropower and other Renewable, no carbon emissions or little Energy utilization of carbon emissions.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 90
() component can complete the DC to AC conversion.
- A. Static bypass unit
- B. Charger
- C. inverter component
- D. Rectifier component
Answer: C
NEW QUESTION 91
When using PoE (Power over Ethernet) interface, it has two functions: communication and power supply.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 92
In battery construction, the () component functions can discharge excess gas.
- A. safety valve
- B. battery slot
- C. Electrolyte
- D. Pole
Answer: A
NEW QUESTION 93
Gas fire protection systems are fire extinguishing systems that inject gas (including steam, aerosol) as a fire extinguishing medium.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 94
For the same MCB circuit breaker, the rated ultimate short-circuit breaking capacity leu is generally less than the rated operating short-circuits breaking capacity Ics.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 95
Through check (), the user can understand the operation of the equipment.
- A. Device version
- B. Real-time signal
- C. Operation log
D Asset Management
Answer: C
NEW QUESTION 96
Generally there are two kinds for VAV ventilation, one is through the adjustable air valve, the other is a dedicated ventilation floor plus adjustable fan composition.
- A. True
- B. False
Answer: A
NEW QUESTION 97
What types does Dual power switch ATS switch according to the different type of switches can be divided into? (Multiple choice)
- A. Instantaneous switch
- B. Standard switch
- C. Closed switch
- D. Delay switch
Answer: B,C,D
NEW QUESTION 98
The following air conditioning, which is comfort air conditioning?
- A. Medical air conditioning
- B. Commercial air conditioners
- C. room dedicated air conditioning
B Clean air conditioning
Answer: A
NEW QUESTION 99
The humidifier that Huawei row-level precision air conditioner uses is the infrared humidifier.
- A. True
- B. False
Answer: B
NEW QUESTION 100
In the process of battery, battery can be direct sunshine, and don't have to do any sunshade measures.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 101
Common communication equipment ways have RS232, RS485, FE, etc.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 102
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