Question 1

In the air conditioning system, the function of the oil and gas separator is to separate the lubricating oil from the compressor exhaust and return the separated lubricating oil to the compressor.

Options :

A : True

B : False

Answer: A

Question 2

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.

Options :

A : True

B : False

Answer: A

Question 3

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

Options :

A : True

B : False

Answer: A

Question 4

There are generally two types of variable air volume ventilated floors, one is through an adjustable air valve, and the other is a dedicated ventilated floor plus adjustable fans.

Options :

A : True

B : False

Answer: A

Question 5

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

Options :

A : True

B : False

Answer: B

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