H12-411_V2.0 Exam Questions

There are three different types of grounding in low-voltage power distribution systems (TN, TT, IT), the first capital letter represents ()

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

After () being activated, the alarm emits strong sound and light alarm signals, which has achieved the purpose of alerting on-site personnel.

The ECC800 collector in Huawei's monitoring system can be inserted with up to () power modules.

() is a correct representation of a fixed valve-regulated sealed lead-acid battery 2V monomer with a rated capacity of

The energy consumption of data centers mainly comes from environmental equipment, lighting systems, refrigeration systems, power distribution systems, etc. How to reduce the energy...

The function of the safety valve in the battery structure is to prevent excessive internal pressure and discharge excess ().

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

() is not part of the agreement.

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

() is not the basic function of a low-voltage circuit breaker.

Huawei's monitoring system NetEco supports sending alarm information to customers through ().

Lay anti-static floor, wear anti- static shoes and socks to prevent the formation of ()

By querying (), users can understand the operating status of the equipment.

() 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.

() belongs to indirect contact heat and moisture treatment equipment.

() Supports creating report tasks according to report templates.

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...

The dynamic environment monitoring system mainly monitors the power supply and distribution equipment, () equipment, environmental equipment, and security equipment in the data cen...

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

If the UPS is overloaded, it works in normal mode for a while and then switches to () mode. If the overload continues, the UPS shuts down.

According to GB50174-2017, the infrastructure of Class A data center should be configured according to the () system.

The total power consumption of IT equipment in a data center is 200 kw, and the power consumption of other systems is 100 kw. The PUE of the data center is ().

When the load is 60KW, the capacity of each UPS is 100KVA, and the power factor is 0.95, then when the system must be redundantly configured, at least () UPS are required.

In the dynamic environment monitoring system, the device that can be used to store high- definition images, provide large-scale storage media, and store video recordings for a long...

Please match the following configuration method with the networking scenario it uses.

Please drag the following command names to their corresponding correct descriptions.

Huawei digital platform supports target recognition. Please connect the process of completing target recognition.

When the load is 60KW, the capacity of each UPs is 100KVA, the power factor is 0.95, when the system must be redundancy configuration, how many UPS does it need at least?

The following () air supply methods are mainly applicable to the craft air conditioners in lower work area where there is a large amount of waste heat to be taken away.

In battery construction, the () component functions can discharge excess gas.

What types does Dual power switch ATS switch according to the different type of switches can be divided into? (Multiple choice)

In the process of construction, carry out the debris splash operation, should use ().

Which of the following is not a basic function of a low-voltage circuit breaker?

Computer room air conditioning is suitable for () scenes. (Multiple choice)

Which of the following options do not qualify as direct expansion air-cooled air conditioners?

Which of the following Humidifier is used in Huawei row-level precision air conditioning?

Data center energy consumption mainly comes from the ring equipment, lighting system, refrigeration systems, power supply and distribution system. How to reduce the energy dissipat...

The 331.12V lead-acid battery is composed of 62V battery cells.

Which of the following descriptions of lithium-ion battery separator is wrong?

When the mains input range is voltage: 150-260VAC, frequency: 45-60Hz, what is the working range of UPS?

Which of the following parameters can reflect the energy efficiency status and energy efficiency of a data center?

Which of the following outdoor unit models has a dual fan?

Which of the following parameters represent the pollution of UPS to the power grid?

MCB circuit breakers can be divided into B, C, D, Z, and K levels according to different tripping characteristics. Which level of tripping characteristics should be used for IT loa...

Which of the following are the characteristics of water-cooled chilled water air conditioners?

According to Heinrich 's Law, in a machinery accident, which of the following is the proportion of casualties (serious injuries or deaths), minor injuries, and unsafe behaviors?

Which of the following statements about battery packs in UPS systems is wrong?

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

In an air conditioning system, which of the following uses water cooling or air cooling to cool the high- temperature and high-pressure gas discharged from the compressor and relea...