Huawei HCIA-Data Center Facility(Huawei Certified ICT Associate-Data Center Facility) - H12-411-ENU Exam Practice Test
In air conditioning systems, the role of the oil separator is to separate the lubricant from the compressor discharge and return the separated lubricant to the compressor.
Correct Answer: B
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Under certain conditions of atmospheric pressure and water vapor content, to cool the air, when the air reaches saturation, cooling will continue to condense when the temperature is ().
Correct Answer: B
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UPS, also known as AC UPS system, for online UPS, when the AC input is normal, the system is supplied by ( ).
Correct Answer: C
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Air energy efficiency ratio is the ratio of effective input power and cooling capacity, its value will be shown as W/W.
Correct Answer: A
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The core components of the refrigeration system include (). (Multiple Choice)
Correct Answer: A,B,C,D
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When the sunroof actuator senses a smoke alarm, it can not control the flip sunroof to open automatically.
Correct Answer: A
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There are three different categories of earthing (TN, TT and IT) in low voltage distribution systems. The second capital letter represents ( ).
Correct Answer: A
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The following ( ) is the advantage of the UPS N system.
Correct Answer: A,C,D
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When mains input range of voltage: 150-260VAC, frequency: 45-60HZ, which of the following UPS working range can work in the main inverter state?
Correct Answer: C
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Data center energy consumption mainly comes from the ring equipment, lighting system, refrigeration systems, power supply and distribution system. How to reduce the energy dissipations of the ( ) is the key to solve data center energy conservation in the industry at present.
Correct Answer: A
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