Practice Free H12-411_V2.0-ENU Exam Online Questions
The type of compressor used by Huawei air-cooled precision air conditioner is ()
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
FusinoModule500 adopts natural heat dissipation.
- A . True
- B . False
Which of the following are the functions of UPS? (Multiple choice)
- A . Voltage stabilization
- B . Stable frequency
- C . Protection against voltage surges
- D . Continuously supply power to the load when there is no mains power
What types of line systems are included in FusionDC1000A? (Multiple choice)
- A . Ground wire
- B . Power cord
- C . Signal line
- D . Fire Line
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 ().
In the main circuit inverter mode, when the UPS is overloaded, it will switch from the main circuit inverter to the battery inverter mode.
- A . True
- B . False
If the power supply of a certain device is interrupted, it will cause great economic losses. What kind of load does this device belong to?
- A . Level 3 load
- B . Level 4 load
- C . Primary load
- D . Secondary load
Which of the following statements about batteries is wrong?
- A . The battery room must be protected from overheating and thermal runaway.
- B . The battery expands because too much gas is released, causing the pressure to increase.
- C . When the battery reaches the end of its service life, no special treatment is required and it can be sold directly for scrap recycling.
- D . When the battery leaks, do not touch it directly with your hands.