H12-411_V2.0 무료 덤프문제 온라인 액세스

What type of computer room is physically isolated from the power distribution room? (Multiple choice)

• A.Category B
• B.Class C
• C.Tieri-v
• D.Category A

In the low-voltage power distribution system, the function of the PE line is to provide a loop path for the fault current when a power supply system failure occurs.

• A.True
• B.False

Which of the following descriptions can basically determine that the battery is faulty? (Multiple choice)

• A.A battery has bulged significantly and is leaking
• B.The battery pack is 2 degrees Celsius higher than the ambient temperature when discharging
• C.The voltage of one battery drops much faster than other batteries during discharge.
• D.The voltage of one battery rises much faster than that of other batteries when charging.

At the end of the discharge of a lead-acid battery, the voltage drops and the positive and negative active materials are converted into ()

Which of the following air conditioners have condensers located outdoors? (Multiple choice)

• A.Air-cooled direct expansion
• B.Water-cooled direct expansion
• C.Air-cooled chilled water
• D.Water-cooled chilled water