Question 1

Adjusting the high air temperature at the end of the cooling system can effectively reduce the energy consumption of the cooling system and lower the PUE (Power Usage Effectiveness) value.

Options :

A : True

B : False

Answer: A

Question 2

If a cooling system uses a DX scheme, it can plan the deployment sequence of the air handling units and outdoor units accordingly.

Options :

A : True

B : False

Answer: A

Question 3

For a data center with a standard designation of GB50174-A, which of the following descriptions regarding the load classification is incorrect?

Options :

A : IT load is a crucial load in the first-level load category.

B : Chilled water units are classified as first-level loads.

C : Fire safety equipment in the machine room is classified as second-level load.

D : Cooling towers and chilled water pumps are classified as first-level loads.

Answer: C

Question 4

If the moisture content in the air remains constant, the dew point temperature is fixed, but relative humidity changes with temperature variations.

Options :

A : Correct

B : Incorrect

Answer: A

Question 5

In a data center where precision cooling units are supplied by single-phase power, using dual power supplies and ATS for switching can meet Tier III requirements if both units share a single ATS.

Options :

A : True

B : False

Answer: B

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