[Jan 01, 2022] Fully Updated Dumps PDF - Latest H12-411_V2.0 Exam Questions and Answers
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NEW QUESTION 59
DB9 It is an agreement.
- A. True
- B. False
Answer: B
NEW QUESTION 60
The possible functions of the dynamic loop monitoring system include ____________ .
Answer:
Explanation:
operation status monitoring, operating parameter display, alarm information display, remote Process management
NEW QUESTION 61
The ____________ function of the dynamic loop monitoring system can display the real-time status of the equipment.
Answer:
Explanation:
real-time signal
NEW QUESTION 62
International Electrotechnical Commission ____________. The specified contact voltage limit is
____________V, And stipulate 25V. The following does not need to consider the prevention Safety measures to prevent electric shock.
Answer:
Explanation:
IEC , 50
NEW QUESTION 63
The use of water fire and foam fire extinguishing systems in the data center will not cause damage to communication equipment.
- A. True
- B. False
Answer: B
NEW QUESTION 64
same MCB Rated ultimate short-circuit breaking capacity of circuit breaker LCU Generally less than the rated operating short-circuit breaking capacity LCS.
- A. True
- B. False
Answer: B
NEW QUESTION 65
In the air-conditioning system, the function of the ____________ is to use water cooling or air cooling to cool the high-temperature and high-pressure gas discharged from the compressor and release heat to the outside world.
Answer:
Explanation:
condenser
NEW QUESTION 66
Low-temperature components can improve the continuous low pressure caused by low-temperature start, so that the air conditioner can start normally.
- A. True
- B. False
Answer: A
NEW QUESTION 67
Huawei Monitoring System NETECO Support video real-time browsing.
- A. True
- B. False
Answer: A
NEW QUESTION 68
During the construction process, the nitrogen bottle operation must be equipped with special ____________ .
Answer:
Explanation:
nitrogen pressure reducing valve, goggles, antifreeze gloves
NEW QUESTION 69
MCB Circuit breaker CThe setting value of level tripping is in ____________, used in ITLoad occasions.
Answer:
Explanation:
5-10ln
NEW QUESTION 70
There are three different classifications of grounding forms in low-voltage power distribution systems,
____________ . The second capital letter represents ____________ .
Answer:
Explanation:
TN,TT,IT , representing the relationship between the exposed conductive part of the power receiving system and the ground
NEW QUESTION 71
According to the degree of equipment concentration, the air conditioning system can be divided into
____________ .
Answer:
Explanation:
centralized, semi-centralized, decentralized
NEW QUESTION 72
If ups The capacity is 20KVA, Then in normal work,ups The front-end input capacity may be ____________ .
Answer:
Explanation:
25KVA
NEW QUESTION 73
The dynamic environment monitoring system supports the alarm management function.
- A. True
- B. False
Answer: A
NEW QUESTION 74
Water cooling/The refrigerant of ethylene glycol air conditioner has been flushed before leaving the factory, so it is convenient and quick to install on site.
- A. True
- B. False
Answer: A
NEW QUESTION 75
The access control system can only set the user to open the door, and cannot set when to open the door.
- A. True
- B. False
Answer: B
NEW QUESTION 76
In the data center power supply and distribution system, if a power outage occurs, it is generally caused by Complete the standby switch between mains and mains or mains and diesel generators.
- A. Diesel generator system
- B. Rack power distribution system
- C. Low-voltage power distribution system
- D. Automatic transfer switch system
Answer: D
NEW QUESTION 77
The following air conditioners are comfortable air conditioners ____________ .
Answer:
Explanation:
commercial air conditioners
NEW QUESTION 78
The compressor is the core of the refrigeration cycle. It is the power device for the refrigerant to circulate in the system. It reduces the low temperature from the evaporator. The compressed steam is compressed into high temperature and high pressure steam.
- A. True
- B. False
Answer: A
NEW QUESTION 79
UPS The inverter component can realize the conversion from AC to DC.
- A. True
- B. False
Answer: B
NEW QUESTION 80
ABC Circuit breakers are mainly used IT Load front end, such as ups Inside the output cabinet.
- A. True
- B. False
Answer: B
NEW QUESTION 81
UPS The front-end input can be two mains, one main and one standby, or one mains and one diesel engine input.
- A. True
- B. False
Answer: A
NEW QUESTION 82
TN-S The three-phase unbalanced current in the low-voltage power distribution system makes the protection line PS Generate voltage to ground.
- A. True
- B. False
Answer: B
NEW QUESTION 83
In the case of ____________, ups Will work in static bypass mode.
Answer:
Explanation:
inverter failure
NEW QUESTION 84
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