Questions for the H12-411-V2-0 were updated on : Dec 01 ,2025
Page 1 out of 14. Viewing questions 1-15 out of 204
Question 1
The following () options belong to water-cooled chilled water air conditioners. (Multiple choice)
A. No need to install a cooling tower
B. Only for small data centers
C. need to install a cooling tower
D. Suitable for medium and large data centers
Answer:
C, D
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Question 2
The function of the following () parts is to help with oil return.
A. liquid lens
B. oil sight glass
C. Oil trap
D. reverse bend
Answer:
C
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Question 3
() is a fire detector that detects smoke particles.
A. temperature detector B VESDA
C. Smoke detector
D. sound and light alarm
Answer:
C
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Question 4
The following air conditioning, which is comfort air conditioning?
A. room dedicated air conditioning B Clean air conditioning
C. Commercial air conditioners
D. Medical air conditioning
Answer:
C
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Question 5
Which of the following statements about the battery is wrong:
A. The battery room should prevent the temperature from being too high to prevent thermal runaway.
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. When the battery leaks, do not touch it directly with your hands.
Answer:
C
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Question 6
In the data center power supply and distribution system, the low-voltage circuit breaker with three- stage protection feature is used for.
A. Prevent branch circuit short circuit caused by branch circuit overload
B. Prevent the main circuit from being overloaded due to the short circuit of the branch circuit
C. Prevent the main circuit from breaking due to branch circuit breaking
D. Prevent the main circuit from breaking due to a short circuit in the branch circuit
Answer:
B, D
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Question 7
In the data center power supply and distribution system, if a power outage occurs, it is generally caused by Complete the standby switch between mains and mains or mains and diesel generators.
A. Automatic transfer switch system
B. Diesel generator system
C. Low-voltage power distribution system
D. Rack power distribution system
Answer:
A
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Question 8
Parameter representation upsPollution to the power grid.
A. Output power factor
B. Input current harmonics
C. Overload capacity
D. efficient
Answer:
B
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Question 9
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
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Question 10
UPS systematic N+X System ratio 2N The power supply guarantee level of the system is higher.
A. True
B. False
Answer:
B
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Question 11
The following is for high frequency ups The correct description of the rectifier components is.
A. Complete AC to DC conversion B.Complete DC to AC conversion
C. Realize power factor correction and pressure reduction function
D. Realize power factor correction and boost function
Answer:
A, D
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Question 12
The dynamic environment monitoring system supports the alarm management function.
A. True
B. False
Answer:
A
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Question 13
The device cannot be connected to the southbound interface of the dynamic environment monitoring system.