H12-411_V2.0-ENU exam

CORRECT TEXT UPS The functions are ____________.View AnswerAnswer: voltage stabilization, frequency stabilization, anti-voltage surge, continuous power supply to the load when there is no mains

R410a Refrigerants can produce the greenhouse effect and destroy the ozone layer.A . TrueB . FalseView AnswerAnswer: B

The increase of cabinet power density will lead to the emergence of local hot spots in the computer room, and row-level air conditioners can solve local problems. The hot spot is too high.A . TrueB . FalseView AnswerAnswer: A

CORRECT TEXT Huawei Monitoring System NetEco Support through ____________, send alarm information to customers.View AnswerAnswer: email, SMS

CORRECT TEXT Huawei Monitoring System NETECO The northbound interface can be accessed ____________.View AnswerAnswer: upper-level network management

CORRECT TEXT MCB Circuit breakers can be divided into ____________ and (magnetic trip) according to the principle of tripping.View AnswerAnswer: thermal trip

UPS The front-end input can be two mains, one main and one standby, or one mains and one diesel engine input.A . TrueB . FalseView AnswerAnswer: A

The access control system can only set the user to open the door, and cannot set when to open the door.A . TrueB . FalseView AnswerAnswer: B

The following Does the model of air conditioner have an oil separator?A . NetCol5000-A25kWB . NetCol5000-A35kWC . NetCol8000-A50kWD . NetCol5000-C30kWView AnswerAnswer: A,B

The following is for high frequency ups. The correct description of the rectifier components is.A . Complete AC to DC conversionB . Complete DC to AC conversionC . Realize power factor correction and pressure reduction functionD . Realize power factor correction and boost functionView AnswerAnswer: A,D