[Mar 02, 2022] H12-421 certification guide Q&A from Training Expert VCE4Dumps

H12-421 Certification Overview Latest H12-421 PDF Dumps

NEW QUESTION 144
Which of the following is not the reason why the NetCol 8000-A infrared humidifier water tray is not filled with water?

• A. Inlet line valve is not open
• B. The water injection pipe is blocked
• C. Infrared lamp damage
• D. The water pressure is abnormal

Answer: C

 

NEW QUESTION 145
Which of the following components do not support wireless networking?

• A. ETH converter
• B. Skylight actuator
• C. Access control actuator
• D. AC actuator

Answer: A

 

NEW QUESTION 146
The refrigerant air cylinder of Huawei air-cooled air conditioner does not need to be inverted on the electronic scale when charging the refrigerant.

• A. False
• B. True

Answer: A

 

NEW QUESTION 147
Before the UPS5000 is powered on, it is necessary to check that the UPS input switch, bypass switch, output switch, maintenance bypass switch, battery open) have all been placed in the "OFF" state.

• A. True
• B. False

Answer: A

 

NEW QUESTION 148
What is the terminal voltage of the battery in the open state?

• A. Discharge voltage
• B. Open circuit voltage
• C. Rated voltage
• D. Actual voltage

Answer: B

 

NEW QUESTION 149
When the NeCol5000-A is under nitrogen pressure, the required nitrogen bottle must be equipped with a pressure reducing valve.

• A. True
• B. False

Answer: A

 

NEW QUESTION 150
() air supply method must have a reasonable raised floor height.

• A. Upper hood air supply
• B. Row level horizontal air supply
• C. Upper air duct air supply
• D. Under the floor air supply

Answer: D

 

NEW QUESTION 151
You cannot search for an alarm by setting a filter condition on NetEco's Current Alarms page.

• A. False
• B. True

Answer: A

 

NEW QUESTION 152
The following () parts can control the room lighting and control the Pad charging.

• A. Cabinet collector
• B. Access control actuator
• C. Actuator
• D. Smart ETH socket

Answer: C

 

NEW QUESTION 153
The NetCol5000-C air conditioner does not support the power module plug and play maintenance.

• A. False
• B. True

Answer: A

 

NEW QUESTION 154
The sleep of the UPS module is to turn off the inverter of some modules when the system load rate is low and stable, so that some modules go to sleep, and the remaining un-hibernated modules bear a larger load to solve the problem of the low efficiency when the system load is light.

• A. True
• B. False

Answer: A

 

NEW QUESTION 155
By setting the mailbox parameters, the NetEco system will send an email to notify the user according to the set rules.

• A. True
• B. False

Answer: A

 

NEW QUESTION 156
In the water side natural cooling scheme, cooling water can be directly supplied from the cooling tower to the air conditioner to complete the cooling.

• A. True
• B. False

Answer: A

 

NEW QUESTION 157
If the customer load cannot be de-energized, pay attention to ( ) when disconnecting the maintenance bypass switch after the repair is completed.

• A. EPO status can be broken maintenance switch
• B. The road module has no abnormal alarm and can be powered.
• C. Battery input is normal
• D. The maintenance bypass switch can also be disconnected when the bypass module is abnormal.

Answer: B

 

NEW QUESTION 158
When the UPS is parallel, it is necessary to check the input phase sequence of each UPS main bypass, but the output phase sequence is not required.

• A. FALSE
• B. TRUE

Answer: A

 

NEW QUESTION 159
Huawei Fusion Module2000 monitoring system supports users on which to monitor the status of micro-modules? (Multiple choice)

• A. ECC 800Web interface
• B. Mobile APP
• C. PAD APP
• D. NetEco web interface

Answer: A,B,C,D

 

NEW QUESTION 160
In the air conditioning system, the pipe can maintain a positive pressure and the pipe can maintain a negative pressure.

• A. False
• B. True

Answer: A

 

NEW QUESTION 161
Smart ETH sockets support up to () cascading.

• A. 0
• B. 1
• C. 2
• D. 3

Answer: A

 

NEW QUESTION 162
Which of the following is not part of the NetCol 5000-C30kW precision air conditioner.

• A. EC fan
• B. DC inverter compressor
• C. DC fan high efficiency power supply module
• D. PID flow regulating valve

Answer: B

 

NEW QUESTION 163
UPS2000-A-(1-3kVA) closes the mains input switch and directly enters the bypass working state.

• A. FALSE
• B. TRUE

Answer: A

 

NEW QUESTION 164
You can view the camera's name, code, IP address, model, status and more in NetEco Video menu.

• A. True
• B. False

Answer: A

 

NEW QUESTION 165
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