Get Certified Easily with Online H12-411_V2.0-ENU Dumps

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March 8, 2025

Using HCIA-Data Center Facility V2.0 H12-411_V2.0-ENU questions can help you build confidence as you prepare for the exam. By practicing with these H12-411_V2.0-ENU dumps questions, you will be better prepared and more confident when you take the actual exam. Besides, H12-411_V2.0-ENU exam dumps questions cover a wide range of topics that are relevant to the certification exam. By using H12-411_V2.0-ENU dumps questions, you will be able to ensure that you have a comprehensive understanding of the material covered on the exam. Practice free Huawei H12-411_V2.0-ENU exam dumps below.

Page 1 of 20

1. Based on the type of electrolyte, what types of lead-acid batteries can be divided into? (Multiple choice)

Acid batteries

Alkaline batteries

Starved battery

Flooded battery

2. As the current frequency increases, how will the inductive reactance of the equipment change?

become smaller

Not sure

unchanged

get bigger

3. Huawei micromodules can seal cold channels as well as hot channels

True

False

4. The basic refrigeration principles of air-cooled air conditioners and water-cooled air conditioners are the same.

True

False

5. In the dynamic environment monitoring system, viewing the detailed alarm information can help locate the alarm source.

True

False

6. UPS5000-E (50kVA power module) can accommodate up to 300kVA in a single rack.

True

False

7. The evaporator is a low-temperature component in the air conditioner and should be protected from frostbite during operation.

True

False

8. Air conditioning indicators are often measured in "four degrees". Which of the following are these four degrees? (Multiple choice)

Air supply speed

Cleanliness

Humidity

Temperature

9. The function of the collector is to collect signals from UPS, air conditioners, cameras and other equipment.

True

False

10. The DC cable voltage drop needs to be controlled within ().

0.01

0.02

0.03

0.05

Page 2 of 20

11. Valve-regulated lead-acid batteries do not require the addition of water or acid during use because of the internal oxygen recombination reaction, that is, the oxygen produced by the positive electrode passes through the pores of the separator and recombine into water at the negative electrode.

True

False

12. Huawei's monitoring system Neteco can only access devices that support the SNMP protocol. ()

True

False

13. UPS5000-E is a high-efficiency UPS. Which of the following statements is correct? (Multiple choice)

Efficiency up to 96%

Efficiency can reach 95% at 20% load

Efficiency can reach 94% at 20% load

Efficiency can reach 96% at 40% load

14. The leakage current protector is based on the fact that after the current exceeds the specified value for a period of time, the heat generated by itself will melt the melt, thereby disconnecting the circuit.

True

False

15. FUsinoModule1000A V2R3 version uses Huawei UPS5000E as IT load power supply.

True

False

16. When the temperature of a lithium-ion battery is too high, which component will change to cut off the electrical connection between the positive and negative electrodes and prevent the battery temperature from continuing to rise?

SEI film

Isolation film

Partition

Electrolyte

17. Users can use the () function to assign personnel to handle faults.

18. Which of the following are components of the three-level architecture of the monitoring system? (Multiple choice)

Application and Service Layer

Regional Monitoring Stations

Data Collection Layer

Monitoring Center

19. What are the advantages of UPS5000-A over NXP, 9395 and Galaxy7000? (Multiple choice)

Input voltage range

Efficiency

Area

20. Among various equipment, the energy consumed by cooling equipment has the greatest impact on the PUE of the data center. Huawei's monitoring system can effectively reduce the system PUE through iCooling intelligent group control.

True

False

Page 3 of 20

21. Laying anti-static floor and wearing anti-static shoes and socks are to prevent which of the following situations?

Static electricity is conducted from the feet to the ground

Static electricity from hands to equipment

Static electricity is conducted from the hand to the ground

Static electricity is conducted from the feet to the equipment

22. In Huawei DC power supplies, which of the following items can trigger the switching of battery charging mode? (Multiple choice)

Charging current

Battery capacity

Charging time

Load power

23. What is the range of battery cabinets in FusionModule800?

0-1

0-3

0-4

0-2

24. Is the channel type of the typical configuration of FusionModule800 a cold channel or a hot channel?

Hot and cold aisles

Hot Aisle

25. Fusion Module2000 is an outdoor prefabricated integrated data center solution

True

False

26. UPS5000-A supports adjustable number of batteries to avoid replacement of the entire battery pack due to failure of a single battery, solving the problem of difficult maintenance of traditional UPS batteries. The range is 30~40 batteries.

True

False

27. What functions can be realized in the access control system interface? (Multiple choice)

Display the door open/close status

User Addition

Permission allocation

View access control records

28. According to the different electrolyte storage methods in the battery, it can be divided into () and ().

29. To modify the plane view of the ECC800 micromodule, you need to log in to the WEB with the pipe operator's authority to operate

True

False

30. The data center management system NetEcoV8 version can support the access of up to 1 million measurement points on a single server.

True

False

Page 4 of 20

31. The energy consumption of data centers mainly comes from environmental equipment, lighting systems, refrigeration systems, power distribution systems, etc. How to reduce the energy consumed by () is the key to solving the energy conservation of data centers in the industry.

32. Which of the following is not one of the four major components of an air-cooled air conditioner?

Compressor

Evaporator

Fan

Condenser

33. UPS can purify the AC input, output stable AC, provide uninterrupted power supply and protect the load.

True

False

34. Which type of circuit breaker is used in the PDU8000 precision power distribution cabinet sub-circuit?

Molded case circuit breaker

Miniature circuit breaker

Frame Breaker

Isolating switch

35. For power supply and distribution equipment that only has Modbus protocol, it can be connected to the dynamic environment monitoring system through ().

36. The 12V battery is composed of 6 2V battery cells.

True

False

37. () air supply method is mainly used for process air conditioning where there is a large amount of waste heat to be removed from the lower working area.

38. Huawei NETCol5000 is mainly designed for medium and high density scenarios (>5KW/cabinet)

True

False

39. The RS485 interface only supports two-wire system, not four-wire system.

True

False

40. Which of the following certification directions does Uptime Tier certification include? (Multiple choice)

Planning Certification

Design Certification

Operational Certification

Construction Certification

Page 5 of 20

41. Secondary equipment is low-voltage electrical equipment used to monitor, measure and protect primary equipment in the power system.

True

False

42. The intelligent rPDU in FusionModule2000 version 3.0 can control the switch of each socket.

True

False

43. If a manufacturer wants to connect a third-party air conditioner to the dynamic environment monitoring system, detect the temperature and other parameters of the air conditioner and control the air conditioner, which interface of the dynamic environment monitoring system can be connected?

Integration interface

Non-intelligent interface

Simplex interface

Northbound interface

44. A data center is expanding its capacity and adding five new devices a, b, c, d, and e, with power of 3kW, 4kw, 6kw, 7kw, and 10kw respectively, and a rated voltage of 220V.

As shown in the figure below, a new distribution box is configured for 5 devices. Please match the devices c, d, and e with the wiring terminals in the distribution box.

45. Which of the following protective equipment should be used during corrosive work during construction? (Multiple choice)

Acid and alkali resistant gloves

Anti-corrosion fluid goggles

Acid (alkali) resistant clothing

Chemical resistant shoes

46. The EPO status interface of UPS5000-E can be selected as open or normally closed interface according to actual use.

True

False

47. The default battery equalization charging voltage of UPS200O-G is () V/CELL

2.25

2.35

2.45

2.15

48. The main function of () is to distribute electric energy, which distributes the previous-level electric energy to various types of electrical equipment according to requirements, standards and specifications, such as UPS, air conditioners, lighting systems, etc.

49. When multiple FusionModule products are used in the same project, which one should be selected for the associated application scenario when configuring NetEco?

Customization

FusionModule2000

Related FusionModule Series

FusionModule5000

50. What functions can the dynamic environment monitoring system achieve? (Multiple choice)

Operation status monitoring,

Operation parameter display,

Warning information display,

Remote management

Page 6 of 20

51. Huawei's monitoring system NetEco supports the concept of user groups and implements role-based user group management. A user group is a set of user levels with the same operating permissions, and different user groups have different permissions.

True

False

52. If FusionModule800 uses down pipe routing, what is the minimum raised floor height?

100mmn

500mm

250mm

53. When only temperature detection is supported and hot-swap configuration is not supported, the switches in the plug-in frame must be fully configured.

True

False

54. () is not part of the agreement.

55. In Huawei's monitoring system, which of the following can be used to support the FE communication expansion of ECC800-Pro?

Server

Sound and light alarm

Water sensor

Smart ETH socket

56. UPS2000-G adopts high power density design, 6K/10K is only 2U high, 15K/20K is only 3U high, reducing installation space

True

False

57. Which of the following is not a characteristic of a modular data center?

Faster deployment compared to traditional data centers

Easy to expand

Compared with traditional data centers, the requirements for deployment environment are higher

Can be pre-integrated and pre-debugged at the factory

58. Huawei's monitoring system NetEco cannot provide an SNMP interface to third-party network management systems.

True

False

59. The refrigeration performance of the environmentally friendly refrigerant R410A is better than that of the non-refrigerant R22.

True

False

60. R410a refrigerant will produce a greenhouse effect and damage the ozone layer.

True

False

Page 7 of 20

61. The Modbus protocol is a fieldbus protocol that uses a master-slave mode. The protocol running on RS485 is called the Modbus-RTU protocol, which is a type of Modbus protocol.

True

False

62. Which of the following descriptions of the data center cooling system is wrong?

Room-level cooling can improve cooling efficiency by changing the air outlet position

In low power density data centers, room-level cooling has cost advantages

Among the cabinet-level, row-level and room-level cooling, the row-level cooling method has the shortest airflow path.

Cabinet-level air conditioners cool the interior of the cabinet

63. The construction cost of computer rooms is high now. Reducing the floor space can effectively reduce customer investment. So the floor space of UPS5000-A-500K is ().

1.02 square meters

2 square meters

0.51 square meters

64. The increase in cabinet power density will lead to the emergence of local hot spots in the computer room. Row-level air conditioning can solve the problem of excessive local hot spots.

True

False

65. Which of the following statements about UPS5000-A-400/500K is wrong? (Multiple choice)

Input power factor 0.99

Output power factor is 1

The number of battery cells cannot be adjusted

Efficiency 94%

66. PPUE is an extension of the PUE concept of a data center and is used to evaluate and analyze the energy efficiency of a local area or equipment in a data center.

True

False

67. When the pressure difference switch of the indoor unit's air filter is closed, it means that there is too much dust on the filter and it should be dealt with in time.

True

False

68. FusinoModule2000 requires a minimum room height of 2.6 meters.

True

False

69. The fire extinguishing agent mainly used in the data center fire protection system is ()

70. When the equipment adopts protective grounding, fuses and switches should be installed in the grounding wire loop.

True

False

Page 8 of 20

71. Which of the following conditions are required to calculate the rated input current of UPS? (Multiple choice)

UPS rated output apparent power

UPS operating nominal efficiency

Battery inverter efficiency

UPS battery charging power

72. Water-cooled direct expansion air conditioners generally require the use of a mixed solution of water and ethylene glycol.

True

False

73. The principle of the evaporator is to convert the refrigerant from liquid to gas, taking away the heat of the refrigerated object and achieving refrigeration.

True

False

74. FUsinoModule1000A V2R3 version customized spraying can meet UL120min fire resistance requirements.

True

False

75. Which of the following does not belong to the integrated wiring system?

Raised Floor

Fiber Optic

Cable Tray

Patch Panel

76. FUsinoModule1000A V2R3 version 40 feet IT solution can provide 7~8 IT cabinets

True

False

77. Which of the following models is Huawei's room-level water-cooled air conditioner?

NetCol8000-E220

NetCol5000-C065

NetCol5000-A042

NetCol8000-C070

78. () can check whether the refrigerant contains water.

79. Which of the following statements is correct? (Multiple choice)

Configure UPS2000-G 15K model, 4+0 parallel, and use 1 SNMP card for monitoring

When configuring UPS5000-E, you can connect an unlimited number of modules in parallel

Batteries of the same brand but different capacities can be mixed

When configuring cables, the voltage drop along the path must be considered in conjunction with the project.

80. When chemical reactions occur inside VRLA batteries, hydrogen and oxygen are produced and water is consumed, so VRLA batteries need to be replenished regularly.

True

False

Page 9 of 20

81. Which of the following measures can reduce the risk of handling? (Multiple choice)

Avoid strong wind interference

Good lighting

Control the frequency of handling

Proper use of personal protective equipment

82. What can users do through the ECC800WEB interface? (Multiple choice)

Real-time monitoring of equipment status

Query version information

Export historical data

Software Upgrade

83. The function of the fire protection system is to automatically capture the smoke or heat when a fire occurs in the fire detection area, thereby issuing an audible and visual alarm and automatically extinguishing the fire.

True

False

84. The communication interface with the fastest transmission rate is ()

85. Relevant standards stipulate that the AC cable voltage drop needs to be controlled within 3%. When designing a UPS system, it is recommended that the AC cable voltage drop be controlled within ().

0.01

0.02

0.03

0.05

86. According to Heinrich's Law, the absence of an accident means that no accident will occur.

True

False

87. The main objects monitored by the data center computer room monitoring system include power system, environmental system, fire protection system, etc.

True

False

88. Air supply from the air conditioner is generally suitable for computer rooms with lower power density.

True

False

89. The cable model is ZRC-YJV-0.6/1kV-3×95mm². Which of the following is the meaning of YJV?

Cross-linked polyethylene insulation and cross-linked polyethylene sheath

Polyethylene insulated polyethylene sheath

Polyethylene insulated cross-linked polyethylene sheath

Cross-linked polyethylene insulated polyethylene sheath

90. Huawei UPS is designed for global use. Currently, UPS5000-E (25-125kVA) is available for sale in which of the following countries and regions? (Multiple choice)

China and Asia Pacific

Middle East and North Africa

CIS and Europe

North America

Page 10 of 20

91. A customer has a load of 100 kw and wants to choose a suitable UPS. Which of the following Huawei products is the most suitable?

UPS5000

UPS2000

HVDC5000

PDU8000

92. NETCOL5000-A The air conditioner unit makes abnormal sound during operation. Check whether the compressor, fan, and pipeline lights are fixed normally or not.

True

False

93. In Huawei DC power supply, which of the following is the meaning of BLVD?

Battery low voltage power down

Load low voltage power off

Battery charge at low temperature

Power off due to mains undervoltage

94. Using RS485 communication method, the maximum communication distance is () meters

95. Compared with ternary lithium batteries, which of the following are the advantages of lithium iron phosphate batteries? (Multiple choice)

High energy density

Long lifespan

Good safety

Cheap raw materials, good economy

96. In the main circuit mode, when the UPS front-end voltage fluctuates at 220V±10%, the UPS output voltage will also fluctuate greatly.

True

False

97. What security mechanisms does the NetEco6000 management system use to ensure network security and prevent leakage of sensitive business data? (Multiple choice)

Permission control

Transmission Security

Storage safety

None of the above

98. Which of the following IP protection levels does UPS5000-E support? (Multiple choice)

IP20

IP21

IP41

IP55

99. A system is configured with a 15-minute battery backup time. The discharge termination voltage of a single battery cell should be selected ().

1.60V

1.67V

1.75V

1.80V

100. NETCol5000-A36W air conditioner has light load initialization function

True

False

Page 11 of 20

101. When configuring the video surveillance function, the surveillance video can be encrypted and exported.

True

False

102. In Huawei DC power supplies, which of the following is correct regarding the parameter settings of LLVD and BLVD?

LLVD is set to -53V and BLVD is set to -53V

LLVD is set to -46V and BLVD is set to -44V

LLVD is set to -48V and BLVD is set to -50V

LLVD is set to -44V and BLVD is set to -46V

103. Which of the following statements about the FusionModule2000 cabinet rPDU are correct? (Multiple choice)

Available in half-height and full-height

Support C16 and C19 national standard sockets

Smart rPDU supports remote monitoring but not remote shutdown

Support standard industrial connectors

104. FusinoModule500&FusinoModule800 can be installed directly on the cement floor.

True

False

105. () can be used as a side air outlet or as a bottom air outlet.

106. Under the conditions of a certain atmospheric pressure and water vapor content, when the air is cooled to a certain () temperature, when the air reaches saturation and continues to cool, condensation will form.

107. The power supply types of FM800 and FM500 are 380/400/415/3Ph/50Hz and 220/230/240/1Ph/50Hz respectively.

True

False

108. () is used in Huawei's line-level precision air conditioners.

109. The government cloud only has room construction requirements in provinces and cities, but not in districts and counties.

True

False

110. The () function of the dynamic environment monitoring system can display the real-time status of the equipment.

Page 12 of 20

111. UPS-2000-G (6k-10k) battery voltage is 240V, 15K/20 battery voltage is 480v.

True

False

112. FusinoModule500&FusinoModule800 remote WEB interface monitoring must be configured with unified network management software.

True

False

113. The fuse can protect personal safety when the equipment leaks electricity.

True

False

114. NetCol5000-A042H full-cabinet row-level variable frequency air-cooled precision air conditioner has load-clearing dehumidification function, which can meet the reliable dehumidification requirements under a minimum load of 10%, avoiding the risk of condensation in low-load and high-humidity environments.

True

False

115. When other environmental conditions remain unchanged, what changes are involved when the return air temperature of the air conditioner is increased? (Multiple choice)

Reduced air volume

Cooling capacity increases

Input power increases

EER increases

116. When a third-party system needs to integrate NetEco or Huawei equipment, Huawei needs to provide northbound interfaces and protocols, and the third-party system manufacturer needs to evaluate the access workload and do development and commissioning.

True

False

117. Which of the following descriptions about data center monitoring systems is wrong?

Can monitor power system, environmental system, fire protection system, etc.

Remote monitoring is not supported

Can provide multiple alarm methods such as voice and short message

Intelligent monitoring system can improve management efficiency

118. () is used to ensure that the fire extinguishing agent is sprayed out in a specific jet form, causing the fire extinguishing agent to vaporize rapidly and reach a fire extinguishing concentration within the protected space.

119. The three-phase unbalanced current in the TN-S low-voltage distribution system causes the protective line PS to generate a voltage to the ground.

True

False

120. When the mains power is normal, what will happen to your UPS battery in variable mode? (Multiple choice)

Float charge

Verification Capacity Test

Balanced charging

Shallow discharge test

Page 13 of 20

121. The refrigerant of water-cooled/ethylene glycol air conditioners has been filled before leaving the factory, and on-site installation is convenient and quick.

True

False

122. Which of the following descriptions are advantages of precision air conditioning in data centers over comfort air conditioning? (Multiple choice)

Large air volume

Continuous operation

Large enthalpy difference

High temperature and humidity control accuracy

123. FM1000A V2R3 version customized spray can meet UL120min fire resistance requirements.

True

False

124. ACB circuit breakers are mainly used at the front end of IT loads, such as in UPS output cabinets.

True

False

125. FusinoModule1000A V2R3 version can be customized with bulletproof shell.

True

False

126. What are the functions of the safety valve for valve- regulated lead-acid batteries? (Multiple choice)

Prevent air from entering

Conductive

Participate in chemical reactions

Expel excess gas

127. UPS5000-E battery adopts a neutral line-free design, which makes it easy to reuse old batteries when replacing tower computers.

True

False

128. When UPS5000-E works in main inverter mode, it will automatically switch to bypass mode in which of the following situations? (Multiple choice)

The power module is overloaded for a period of time exceeding the specified time

Mains power outage

Bypass module hardware failure

Power module overheating

129. FM1000A V2R3 version IT solution comes standard with cabinet spring damping device

True

False

130. Which of the following systems does the computer room fire protection system mainly consist of? (Multiple choice)

Safe Evacuation

Smoke prevention and exhaust

Automatic fire alarm

Gas fire extinguishing

Page 14 of 20

131. What is the maximum IT load and power modules supported by the FM2000 integrated UPS?

125KW 5 25KVA power modules

150KW 6 25KVA power modules

125KW 6 25KVA power modules

150KW 7 25KVA power modules

132. A project requires a management system that can monitor the PUE value of a room. What function does NetEco need to quote separately?

No separate quotation is required

Capacity Management

Mobile APP

Energy efficiency management

133. Gas fire fighting system refers to a fire fighting system that uses gas (including steam and aerosol) as the fire fighting medium.

True

False

134. UPS5000-E (50KVA module) supports adjustable number of batteries, avoiding the replacement of the entire battery pack due to a single battery failure, and solving the problem of difficult maintenance of traditional UPS batteries. The adjustable range is 30-44 batteries.

True

False

135. Which of the following statements about UPS rectifiers is wrong?

With boost function

can convert direct current into alternating current

Can reduce UPS pollution to the power grid

Can realize power factor correction

136. Which of the following is the temperature of the cold channel air inlet area of the data center specified in GB50174-2017?

11 ℃ ~19 ℃

13 ℃ ~22 ℃

18 ℃ ~27 ℃

20 ℃ ~35 ℃

137. The NetEco6000 management system supports access to third-party devices to achieve centralized management of the computer room. When monitoring which of the following devices is considered third-party device access, it is necessary for the front-line to submit an RM order and report the third-party device access fee?

Huawei UPS 5000E

Huawei large power supply TP48300

Emerson Air Conditioning

None of the above

138. Which of the following are indoor products of Huawei data center solution? (Multiple choice)

FusionModule 1000A

FusionModule 800

FusionModule 1000B

FusionModule 2000 EFusionModule500

139. FusinoModule2000 integrated UPS has two models: 50K/125K.

True

False

140. Which of the following items belong to communication interface types? (Multiple choice)

DB9

RJ45

RS485

Cold pressed terminal

Page 15 of 20

141. What is the protection level of the PDU8000 precision power distribution cabinet?

IP20

IP21

IP30

IP40

142. While the NETCOL5000-A air conditioner is turned on and tested, which of the following statement is wrong about the possible reasons for the high exhaust pressure alarm?

The outdoor fan cannot start

Outdoor fan speed pot bottom

Overfilling of cold disc

Cold plate charge is too low

143. During the construction process, when there are objects falling or impacting, what should be used? (Multiple choice)

Safety Helmet

Anti-smash shoes (boots)

Puncture-resistant shoes

Anti-slip shoe safety net

144. For unsaturated air, the relationship between dry bulb temperature, wet bulb temperature and point A temperature is ()

145. () does not belong to the characteristics of direct - expansion air-cooled air conditioners.

146. What configuration methods does the FusionModule800 UPS support?

N/2N

N/N+1/2N

N/N+1

147. Common equipment communication methods include RS232, RS485, FE, etc.

True

False

148. UPS5000-A can significantly reduce the harmonic pollution to the power grid. Under the condition of full linearity, the input electrical distortion nmi is ().

0.02

0.03

0.05

0.01

149. Which of the following functions can display the entry and exit records of data center personnel?

Configuration Management

Access Control Management

Energy Efficiency Management

Work Order Management

150. Regarding the description of the data center cooling system, which of the following is wrong?

Among rack-level, row-level and room-level cooling, row-level cooling has the shortest airflow path.

No other options

Page 16 of 20

151. UPS5000-A-120KVA can support wall installation

True

False

152. Which of the following descriptions of the electrolyte of lead-acid batteries (AGM) is wrong?

The saturation of the electrolyte cannot be too high, otherwise it will block the diffusion channel of the positive electrode oxygen.

The electrolyte is not flowing

The electrolyte is made of pure concentrated sulfur and pure water

The electrolyte is in a flowing state

153. When electrolyte leakage occurs in the battery, () treatment method is more appropriate.

Wear gloves and wipe it clean with a rag, and check whether it needs to be replaced

No other options

154. During the use of the battery, in order to balance the capacity loss caused by the battery's startup discharge, the battery needs to be charged with a continuous, long-term constant voltage, which is called ()

Charging

Self-discharge

Balanced charging

Charging test

155. The function of Huawei's chilled water air conditioner frame power supply is to provide stable power to the fan.

True

False

156. In order for the air conditioner to dehumidify, the temperature of the air conditioner evaporator should be lower than () temperature.

157. Which of the following is the relationship between the resistance of a conductor and its core cross-sectional area?

Nonlinear Correlation

Proportional

No clear relationship

Inversely proportional

158. What types of line systems are included in FusionDC1000A? (Multiple choice)

Ground wire

Power cord

Signal line

Fire Line

159. What is the maximum data transmission rate supported by FE (Fast Ethernet)?

100K

10 M

1000 M

100 M

160. The dry contact signal of UPS500O-E does not support the remote emergency stop function

True

False

Page 17 of 20

161. Huawei monitoring system NETECO supports hierarchical network management functions. ()

True

False

162. What parallel connection mode can UPS5000-A support? (Multiple choice)

N+X parallel operation

Double busbar

Parallel operation is not supported

163. Which of the FM800 standard configurations are optional?

Temperature and humidity door magnet water-immersed smoke sensor mobile APP

Door magnet water immersion smoke detector SMS alarm PAD

Door magnet water immersion video backup battery ibttery

164. What are the three major indicators of air conditioning? (Multiple choice)

Temperature

Humidity

Cleanliness

Gear

165. In the monitoring system, the access control management function supports administrators to create, configure and manage access control permissions.

True

False

166. In the air conditioning system, the function of the oil-gas separator is to separate the lubricating oil brought out by the compressor exhaust and return the separated lubricating oil to the compressor.

True

False

167. R410A refrigerant can freeze human skin and deeper muscles in a very short time the moment it is sprayed outside, and cause necrosis of the skin adjacent to the frostbite.

True

False

168. In the main inverter mode, when the AC input voltage and frequency exceed the range allowed by the UPS, the UPS will switch from the main inverter mode to the static bypass mode.

True

False

169. Based on the degree of concentration of equipment, what types of air conditioning systems can be divided into? (Multiple choice)

Centralized

Semi-centralized

Decentralized

Semi-decentralized

170. The administrator cannot limit other users ’ login time and login IP address through Huawei monitoring system.

True

False

Page 18 of 20

171. What are the optional temperature control types in the FusionModule2000 refrigeration system? (Multiple choice)

Half cabinet 25kW air cooling

Half cabinet 30kW water cooling

Row-level chilled water 65kW

Full cabinet 42kW air cooling

172. Based on the action mode, what are the main types of leakage current protectors? (Multiple choice)

Electromagnetic

Manual

Electronic

Delayed

173. Which of the following are correct about direct current? (Multiple choice)

DC arcs are easier to extinguish than AC arcs

The direction of direct current does not change periodically over time

The current of direct current does not change periodically over time

Electronic equipment is suitable for DC power supply

174. Which of the following components can improve the heat transfer capacity of the chilled water air conditioner heat exchanger when it is working?

Heater

Condensate pump

Filters

Fan

175. Which of the following functions can the monitoring system achieve? (Multiple choice)

Operation parameter display

Warning information display

Operation status monitoring

Energy consumption data analysis

176. When there is a fire in the FusionModule1000 box, the deflation indicator light will display the words "Deflation Do Not Enter" to warn on-site personnel not to enter the deflation protection area.

True

False

177. UPS5000-E has strong load adaptability and will not reduce the rating when the capacitive/inductive load leads/lags ().

0.4

0.5

0.6

0.7

178. In the air conditioning refrigeration cycle, which of the following items belong to the high-pressure section? (Multiple choice)

Inside the condenser

Pipeline from throttle valve outlet to evaporator

Evaporator outlet to compressor suction port

Compressor exhaust to condenser

179. Which of the following reliability characteristics does UPS2000-A (6K-10K) have? (Multiple choice)

Early warning of key components

Ultra-wide input voltage range

Powerful lightning protection design

180. For valve-regulated lead-acid batteries, what are the functions of the safety valve?

Exhaust excess gas and prevent air from entering

No other options

Page 19 of 20

181. When configuring batteries, you don’t need to consider the brand of the batteries, as long as the capacity is the same, it can meet customer requirements.

True

False

182. () is not a harmful effect of electric current on the human body.

183. The energy efficiency ratio of air conditioning is the ratio of effective input power to cooling capacity, and its value is expressed in W/W.

True

False

184. The gas fire extinguishing system consists of ()

Fire extinguisher storage bottle set, starting device, fire pipe network, sprinkler

No other options

185. On-demand deployment and avoiding over-investment are the only advantages of Mou Aihua Data Center

True

False

186. What systems does the computer room fire protection system mainly consist of? (Multiple choice)

Automatic fire alarm,

Gas fire extinguishing,

Smoke prevention and exhaust,

Safe evacuation

187. The refrigeration performance of the environmentally friendly refrigerant R410A is better than that of the non-environmentally friendly refrigerant R22.

True

False

188. Which of the following statements about circuit breakers is correct? (Multiple choice)

Leakage protection circuit breaker is not recommended to be used at the front end of the UPS system

When selecting circuit breakers, do not consider redundancy

Isolating switches and circuit breakers play the same role in the system

Circuit breakers play a dual role of isolation and protection in the system

189. Which manufacturers have 50KVA power modules? (Multiple choice)

Huawei

Emerson

Schneider

INVT

First control

Eaton

190. Which of the following factors has the greatest impact on indoor airflow organization?

Air outlet location and type

Neither

Return air vent location and type

Air flow velocity

Page 20 of 20

191. UPS5000-E (25-125KVA) does not support iBattery function.

True

False

192. Regarding the adjustable battery of UPS5000-E, when one battery is damaged, at least () batteries need to be removed, and then the corresponding number of batteries should be set on the monitoring panel.

193. Which of the following devices can be used to store video recordings for a long time?

UPS

NVR

AC Actuator

Switch

194. The northbound interface of Huawei monitoring system NETECO can be connected to ()

195. Common UPS system configurations include N system, N+X system, and 2N system.

True

False

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