Which of the following descriptions for the configuration of the PDU8000 modular precision power distribution cabinet is correct?
- A . Modular precision power distribution cabinet supports single and dual input
- B . Modular precision power distribution cabinet supports up to 4 output modules
- C . The output module of the modular precision power distribution cabinet only supports 1P air switch
- D . The input modules of the modular precision power distribution cabinet are MCCB and ATS.
If the customer’s load cannot be powered off, what should be paid attention to disconnecting the maintenance bypass switch after the maintenance is completed?
- A . The circuit module is normal and can supply power
- B . The maintenance bypass switch can also be disconnected when the bypass module is abnormal
- C . EPO filling can break the maintenance switch
- D . The battery input is normal
The default battery charging voltage of UPS2000-G is () V/CELL.
- A . 2.25
- B . 2.35
- C . 2.45
- D . 2.15
Which of the following features are standard features of NETCOL8000-C air conditioners?
- A . Dual power supply
- B . Water Immersion Sensor
- C . G4-level filter
- D . Humidification function
Three groups of 9AH battery packs are connected in parallel to UPS2000-G-6KVA, the battery capacity should be set to ().
- A . 9AH
- B . 18AH
- C . 27AH
- D . 32AH
The straight pipe distance of NETCOL5000-C pipeline fixed title is ().
- A . 3200MM
- B . 3000MM
- C . 2600MM
- D . 2500MM
When the outdoor units of Huawei air-cooled air conditioners are installed horizontally, the distance between the two outdoor units is ≥ () MM.
- A . 400
- B . 800
- C . 1200
- D . 2000
When the internal short circuit of the battery occurs, the charging voltage of the faulty battery (), the open circuit voltage is low (generally less than 1V/CELL).
- A . high
- B . unchanged
- C . low
- D . is all possible
In the naming of UPS5000-E-120K-HASBS, the meaning of the letter E is ().
- A . 208V voltage body
- B . E-Series Modular UPS
- C . Input switch type is ATS
- D . Input switch type is MCCB
The () components of Huawei NETCOL5000-A in-line precision air conditioner are optional parts.
- A . Fan
- B . Evaporator
- C . Compressor
- D . Electric heating
The function of the check valve in the NetCol5000-A air conditioning system is ( ).
- A . Filtration of impurities in the system
- B . Controlling refrigerant flow
- C . Effective control of gas or liquid backflow
- D . Protect the water pump
The height of the ECC800 collector is () U.
- A . 1
- B . 2
- C . 3
- D . 4
The terminal power of the battery in the open circuit state is called ().
- A . Rated voltage
- B . Discharge voltage
- C . Open-circuit voltage
- D . Actual voltage
On the NETECO interface, a module can only bind () ECC800 devices.
- A . 1
- B . 2
- C . 3
- D . 4
The maximum effective distance of WIFI supported by NETECO’s mobile APP is () meters.
- A . 20
- B . 30
- C . 40
- D . 50
In the battery model 6-GFM-150, the 150 mark is the ( ) of the battery.
- A . actual capacity
- B . rated capacity
- C . maximum capacity
- D . minimum capacity
Which is not part of the routine maintenance item of the ECC800 power module?
- A . Check if the power indicator light is normal
- B . Check the ECC800 module fan
- C . Check whether the power wiring is loose
- D . Create a micromodule plan view
Modifying the micro-module layout view on ECC800 supports simultaneous editing by ( ) users.
- A . 1
- B . 2
- C . 3
- D . 4
Which of the following air supply methods must have a reasonable raised floor height?
- A . Air supply from the upper hood
- B . Underfloor air supply
- C . Upper air duct supply
- D . Row-level horizontal air supply
In the () setting interface, you can set the linkage rules of the multi-function sensor and the sunroof.
- A . PLC
- B . WIFI management
- C . Access control user management
- D . Version Information
When the Huawei air-cooled air-conditioning compressor is turned on for the first time, the crankcase heating belt needs to be preheated for more than () hours.
- A . 2
- B . 6
- C . 12
- D . 24
The multi-function sensor in the modular channel of Fusion Module2000 can be connected to the () component.
- A . Cabinet collector
- B . WIFI converter
- C . Only ETH socket
- D . Access Control Actuator
When creating a camera in NETECO, in addition to obtaining the IP address of the camera, you also need to obtain ().
- A . Camera pixels
- B . Camera Encoding
- C . Camera installation location
- D . Camera Height
Users can modify the login password in the () menu of the ECC800 WEB interface.
- A . Version information
- B . Electronic label
- C . User Management
- D . System upgrade
The user can log in to the WEB interface of ( ) to view the operating status of the device in the micro-module.
- A . Water Immersion Sensor
- B . ECC800
- C . Cabinet electronic lock
- D . Sound and light alarm
When a user uses the NETECC APP on the PAD to query the PUE information in the current computer room, he needs to click the () menu.
- A . Alert
- B . Energy consumption
- C . Monitoring
- D . more
When installing NETECL5000-A35KW, generally at least pre-charge () KG refrigerant.
- A . 5
- B . 8
- C . 10
- D . 12
One NetCol520 chilled water distribution units can maximum support () NETCOL5000-C water-cooled row-level precision air conditioners.
- A . 12
- B . 10
- C . 8
- D . 6
When the device interface uses the MODBUS-RTU protocol, ( ) needs to be installed when connecting to the ECC800.
- A . ETH Converter
- B . Access Control Actuator
- C . Sunroof Actuator
- D . AC Actuator
When a fire breaks out in the box and the fire extinguishing device releases the fire extinguishing agent into the protection area, ( ) will display the words "In The Vent, Do Not Enter".
- A . Fire alarm
- B . Sound and light alarm
- C . Deflation indicator light
- D . Emergency Lights
Which of the following air-conditioning systems need to be equipped with cooling towers and dry coolers?
- A . Direct Ventilation Air Conditioning System
- B . DX air-cooled type
- C . CW air-cooled type
- D . DX water-cooled type
Regarding the integrated UPS5000-E120K-HASBS statements, which of the following is incorrect?
- A . Support intelligent battery management, the number of battery cells can be adjusted
- B . Support incoming line
- C . ATS does not support manual switching
- D . The power statistics interface can display the power of each output branch
When the battery status of the UPS2000G is NA, it may be ().
- A . The battery is not connected
- B . Battery Low Voltage
- C . The battery connection is normal
- D . The battery N line is not connected
The humidifier used by NETCOL8000-A is ().
- A . Electrode humidifier
- B . Infrared humidifier
- C . Wet film humidifier
- D . High pressure mist humidifier
The signal processing of the UPS5000-E will centralize control:
- A . Energy Control Module ECM
- B . Power Module
- C . Bypass Module
- D . Maintenance Bypass Module
The damage of NETCOL5000-C thermal insulation cotton may cause:
- A . The fan noise is too loud
- B . The drainage capacity of the equipment is significantly reduced
- C . Pipeline condensation
- D . The fan is blocked
The smart ETH socket supports up to () cascades.
- A . 8
- B . 16
- C . 32
- D . 64
The user can modify the IP address of the ECC800 from the () menu on the ECC800WEB interface.
- A . Micro module settings
- B . Video IP settings
- C . Time setting
- D . Monitoring module IP
For storage batteries that have been stored for 18 months or more and have not been charged during the period, what should be dealt with?
- A . No need to deal with, use as soon as possible
- B . Need to supplement point processing, use it as soon as possible
- C . Need to be activated, use as soon as possible
- D . do scrap treatment
NETCOL5000-C temperature and humidity sensor dial-code setting error may cause:
- A . Water leakage at the bottom of the device
- B . The return air temperature or fan speed fluctuates greatly
- C . The drainage capacity of the equipment is significantly reduced
- D . The temperature and humidity sensor cannot detect the temperature and humidity
Which of the following components can control the lighting in the computer room and control the PAD charging?
- A . Access Control Actuator
- B . Actuator
- C . Cabinet collector
- D . Smart ETH socket
Which of the following options belongs to the natural cooling system?
- A . Direct Ventilation Air Conditioning System
- B . Water-cooled air-conditioning series
- C . Water-cooled cold water air series
- D . Air-cooled upright is an air-conditioning system
When the NETCOL5000-A air conditioner is turned on for commissioning, the possible cause of the exhaust high pressure alarm, which is incorrect?
- A . The outdoor fan cannot be started
- B . Outdoor fan speed pot bottom
- C . Too much cold dish charge
- D . Too little cold dish charge
The function of the SW button on the ECC800 is ( ).
- A . Restore default IP address
- B . Wireless networking pairing
- C . Device software upgrade
- D . Clear the alarm
When a fire occurs in the box, ( ) is used to start the gas fire extinguishing device in an emergency.
- A . Emergency stop button/manual deflation button
- B . Fire Cylinders
- C . Pressure switch
- D . Solenoid valve
In ECO mode, when the input is stable, the UPS works in () state.
- A . Main circuit inverter
- B . Bypass
c. battery - C . Maintenance Bypass
The principle of the ( ) humidifier is that the high infrared light makes the water surface release water vapor and diffuse into the airflow that needs to be humidified.
- A . Electrodes
- B . Humidity
- C . High pressure spray
- D . Infrared
The ECC800 is equipped with a SIM card, the SIM card should be installed in ().
- A . ECC800 power module slot
- B . The slot on the left side of the ECC800 main control module
- C . Below the ECC800 antenna
- D . USB interface
During the use of the battery pack, the appearance is normal, but there is no current during charging, the voltage drops to 0 at the moment of discharge, and the battery pack cannot be discharged. Which of the following situations may occur?
- A . Open circuit in the battery pack
- B . Sulfation
- C . Backward battery
- D . Battery leakage
The rated voltage of the cell (CELL) in the VRLA battery is ().
- A . 12V
- B . 6V
- C . 2V
- D . 1V
UPS5000-E can accept the input voltage within the range of ( ) V.
- A . 305-485
- B . 140-490
- C . 120-480
- D . 138-485
The recommended installation location of the smart ETH socket is ().
- A . Control the sunroof
- B . Inside the network cabinet
- C . Inside the lintel
- D . The side of the cable trough at the top of the cabinet
The device is connected to the ECC800 monitoring system through the smart ETH socket, using the () interface of the smart FTH socket.
- A . POE
- B . FE
- C . RS485
- D . AI/DI
The reason why the fan does not turn when the NETCOL5000C device is turned on may be ().
- A . The filter is dirty and blocked
- B . The power supply module is faulty or abnormal
- C . Failure of strong drainage system
- D . Poor drainage of condensate
() is the control part of the closed access door of the module data center.
- A . Access Control Actuator
- B . Multifunction Sensor
- C . Sunroof Actuator
- D . Cabinet collector
After the start-up and debugging of the air conditioner, the indoor temperature is in a reasonable state, and the suction pressure is not lower than () can be regarded as reasonable.
- A . 7MPA
- B . 6MPA
- C . 5MPA
- D . 0.7MPA
The 2.4G antenna on ECC800 should be installed in ().
- A . RF_ZA wiring port
- B . 3G/4G antenna interface
- C . RS485 port
- D . DO output dry contact
When the indoor unit and outdoor unit of NETCOL5000-A are separated and have not been installed, the refrigerant pipeline is ().
- A . Air
- B . Oxygen
- C . Nitrogen
- D . Refrigerant
The host should be set to () when the UPS5000 series multi-rack network is paralleled.
- A . One-to-many
- B . One-to-one
- C . Many-to-One
- D . No setup required
The function of the ATS input unit MCCB input unit of the integrated UPS is ().
- A . Provide support output for direct supply of mains power
- B . The cabinet provides dual or single input
- C . Provide branch output for UPS workers
- D . Monitoring Operational Status
Huawei precision air conditioners support up to () air conditioners to form a group control.
- A . 8
- B . 16
- C . 32
- D . 40
In the parallel steps of the UPS5000-E, the reason for using the EPO status interface is ().
- A . Prevent static electricity and protect personal safety
- B . Power down the load to prevent damage to the load equipment
- C . Protect the battery from static electricity
- D . Cut off the output and set the parallel parameters
The () air supply method is suitable for data centers with high power density of a single cabinet.
- A . Upper air supply
- B . Under the floor
- C . Upper air duct
- D . Row level
The AI/DI port on the access control actuator supports to connect the ().
- A . IC card reader
- B . Fingerprint Reader
- C . Door open button
- D . Electronic magnetic lock
During the stable operation of the NECOL5000-A35KW air conditioner compressor, the oil level that can be observed by the sight glass is considered qualified at the position of ().
- A . 0-14
- B . 1/4-1/2
- C . 1/3-1
- D . ＞ 1
Which of the following components does not support wireless networking?
- A . Access Control Actuator
- B . AC Actuator
- C . ETH Converter
- D . Sunroof Actuator
( ) marks the fully charged battery, and discharge it to the specified termination power according to certain discharge conditions.
- A . Actual capacity
- B . Rated capacity
- C . Maximum capacity
- D . Minimum Capacity
One sunroof actuator can drive up to () sunroof solenoid valves at the same time.
- A . 2
- B . 4
- C . 6
- D . 8
The technical essential of the vacuum pumping action of the pipeline is: the degree of vacuum is not greater than () PA.
- A . 90
- B . 80
- C . 70
- D . 60
During the use of the battery, in order to balance the capacity loss caused by the start-up and discharge of the battery, it is necessary to carry out a continuous and long-term constant voltage charging of the battery, which is called ().
- A . Charging
- B . Self-discharge
- C . Equalizing Charge
- D . Charging test
During the use of the battery, in order to reduce the deterioration of the trend of voltage imbalance between batteries, it is necessary to increase the charging voltage of the battery pack, activate and charge the battery, and prolong the battery life. The maintenance method is called ().
- A . Float charge
- B . Self-discharge
- C . Equalizing Charge
- D . Charging test
Which of the following is not the reason why the water tray of NETCOL8000-A infrared humidifier is not filled with water?
- A . The water injection pipe is blocked
- B . Infrared tube damage
- C . The water pressure is abnormal
- D . The valve of the water inlet pipe is not open
The main reason for the thermal runaway of the battery and the increase of the internal pressure, which leads to the deformation and expansion of the appearance is ().
- A . Electrolyte leakage
- B . More electrolyte
- C . Gas leakage
- D . Plate gasification
When Huawei air-cooled air conditioner is installed, the required time for maintaining positive pressure in the refrigerant pipeline is () hours.
- A . 8
- B . 12
- C . 24
- D . 36
When UPS2000-G shuts down the single machine of the shutdown system, it needs to ().
- A . Perform 2 consecutive shutdown operations on the machine
- B . Only one shutdown operation is required for the machine
- C . Directly disconnect the input of the machine
- D . Shut down all UPSs in the system
Default password of UPS2000-G operation panel is:
- A . Changer
- B . Changeme123
- C . 000001
- D . Neteco
When the outdoor unit of Huawei air-cooled air conditioner is installed horizontally, the distance from the wall or obstacle is required to be ≥ () MM.
- A . 100
- B . 200
- C . 300
- D . 600
( ) indicates the amount of electricity that a fully charged battery can release when it is discharged to the specified mid-branch voltage according to certain discharge conditions. The unit is expressed in AH or WH.
- A . Actual capacity
- B . Rated capacity
- C . Maximum capacity
- D . Minimum Capacity
The component that can realize RS486/CAN to FE interface conversion is ().
- A . Sunroof Actuator
- B . WIFI converter
- C . Only ETH socket
- D . ETH Converter
UPS5000-S-400K adopts () KVA power module.
- A . 25
- B . 30
- C . 40
- D . 50
The default battery float voltage of UPS2000-G-20K is ( ) V/cell.
- A . 2.25
- B . 2.35
- C . 2.45
- D . 2.15
When the battery is discharged, the discharge voltage of a faulty battery drops rapidly, and the backup time of the entire battery rented in the morning is not enough, so it should be dealt with ().
- A . Force equal charge, replace the faulty battery
- B . No processing required
- C . Scrap the entire battery pack
- D . to discharge
() can convert POE signal into WIFI signal.
- A . AC actuator
- B . WIFI converter
- C . VCN
- D . Sunroof Actuator
At present, in the design of the data center, the part ( ) that most affects the PUE.
- A . Power supply and distribution system
- B . Refrigeration system
- C . Decoration system
- D . Building Systems
What is the minimum outdoor ambient temperature that the FusionModule800 air conditioner can support?
- A . -20 ℃
- B . -40 ℃
- C . 0 ℃
What is the channel type of a typical configuration of FusionModule800? Is a cold aisle or a hot aisle?
- A . Cold Aisle
- B . Hot Aisle
Suppose a certain battery specification stipulates that the discharge power is 400W@1.67V@15min. If the system demand is 1400W, the number of battery packs to be selected is ().
- A . 5 groups
- B . 3 groups
- C . 4 groups
FusionModule500&FusionModule800 remote WEB interface monitoring must be configured with unified network management software.
- A . True
- B . False
The external maintenance bypass of the UPS system generally uses a circuit breaker with ( ) pole.
- A . 3
- B . 1
- C . 4
- D . 2
The relevant standards stipulate that the voltage drop of the AC cable needs to be controlled within 3%. It is recommended that the voltage drop of the AC cable be controlled within ( ) when designing the UPS system.
- A . 0.02
- B . 0.05
- C . 0.03
- D . 0.01
If the customer has high requirements on the availability of the management system and requires that the normal use of the system is not affected by a single point of failure of the hardware, the NetEco management system can provide a high-availability solution of dual-system backup. In the dual-computer solution, what hardware resources are required by NetEco?
- A . 2 servers + 1 disk array + 1 switch
- B . 2 servers + 2 disk arrays + 3 switches
- C . 1 server + 1 t-disk array + 2 switches
- D . None of the above is true
Considering that the UPS system is fully configured in the early stage of construction, but the actual system load rate is low, UPS5000-E is designed with an intelligent sleep function, which can increase the system load rate and keep the system running efficiently. When the UPS5000E sleeps intelligently, at least how many power modules are redundant?
- A . 2
- B . 1
- C . 0
How many temperature and humidity monitoring modules are required for each temperature control product?
- A . 1
- B . 2
- C . 3
- D . 4
The power supply structure adopted by the new line-level half-cabinet chilled water is:
- A . Single power supply
- B . Dual power supply
- C . Both A and B are right
- D . Other
What methods are supported by the FusionModule800 UPS configuration?
- A . N/2N
- B . N/N+1/2N
- C . N/N+1
Using UPS5000-E (50kVA power module), the actual load is 160kW, the rack is 1+1 redundant, the single-machine backup power scheme is adopted, the backup power scheme for each machine, 3 sets of batteries per rack, 40 cells per set, the capacity of the main switch box is:
- A . 630A
- B . 500A
- C . 250A
- D . 320A
If the FusionModule800 adopts the down pipe, what is the minimum raised floor height?
- A . 100mmn
- B . 500mm
- C . 250mm
Which of the following models has the widest input voltage range and is more suitable for harsh power grids?
- A . APC Galaxy7000
- B . UPS5000-A
- C . Emerson NXF
- D . Eaton 9395
The similar models of Eaton and UPS5000-A 30kVA120kVA are ().
- A . 9390
- B . 9395
- C . NXR