H12-411_V2.0 Practice Exam Questions and Answers

The user can use the ____________ function to assign personnel to handle the fault.

One ups The capacity is 200KVA, Its output power factor is 0.9, Then it can drive at most ____________ load.

Huawei Monitoring System NetEco Supports the concept of user groups, and implements role-based user group management. A user group is a group of user-level collections with the same operation permissions, and different user groups have different permissions.

The throttling devices used by Huawei's air-cooled precision air conditioners are ____________ .

When the AC power equipment is introduced in the three-phase four-wire system, in addition to the grounding of the near end of the power transformer, the near end of the electrical equipment and the equipment room should be grounded repeatedly on the neutral line.

In the battery structure, the ____________ component functions to remove excess gas.

Protective grounding: Grounding refers to the direct connection with the earth, and a certain point of the live part of an electrical device or electrical circuit is connected to a large point. When the electrical device or other device is normal, a certain point of the uncharged part is artificially connected to the earth.

The access control system can only set the user to open the door, and cannot set when to open the door.

The refrigerant used by Huawei precision air conditioner is ____________ .

Through the query ____________, the user can understand the operation of the device.

The following components that can improve the heat exchange capacity of the heat exchanger are ____________ .

Reflects the dryness of the air, the smaller the value, the drier the air.

The dynamic environment monitoring system can be deployed in medium and large modular data centers, small modular data centers, container data centers, etc.

High sensible heat ratio is the only difference between precision air conditioners and civil air conditioners.

____________ The main function is electric energy distribution, which distributes the front-end electric energy to various types of electrical equipment according to requirements, standards and

specifications, such as ups, Air conditioning, lighting system, etc.

In Huawei's dynamic environment monitoring system, it is at the data collection layer and can integrate the underlying components ____________ . The equipment through which information is transmitted to the monitoring software is ____________ .

The function of Huawei's chilled water air conditioner plug-in frame power supply is to provide a stable power supply for the fans.

International Electrotechnical Commission ____________. The specified contact voltage limit is ____________V, And stipulate 25V. The following does not need to consider the prevention Safety measures to prevent electric shock.

Data center room PUE The smaller the value, the greater the power consumed by the supporting infrastructure of the data center such as cooling and power supply.

The following ____________ is correct 1A fixed valve-regulated sealed lead-acid battery 2VMonomer, the rated capacity is 800Ah.

The basic principle of the rotary dehumidifier is that the water vapor encounters the condensation water droplets of the cooling tube fins to dehumidify.

Use POE When interface, it has two functions of communication and power supply.

The following are not part of the agreement ____________ .

There are three different classifications of grounding forms in low-voltage power distribution systems ____________, where the first capital letter represents ____________ .

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

The following ____________ options do not belong to the characteristics of direct air-cooled air-conditioning.

The function of the fire-fighting system is to automatically capture the smoke or heat in the fire detection area when a fire occurs, so as to issue an audible and visual alarm and automatically extinguish the fire.

In the case of ____________, ups Will work in static bypass mode.

Under the same load conditions,ups The backup time is mainly determined by the battery capacity and the number of battery cells. The larger the battery capacity, the longer the backup time.

The following are air-cooled row-level air conditioners ____________ .