Huawei H12-411_V2.0 Practice Questions| TestInsights

Question 1

UPS systematic N+X System ratio 2N The power supply guarantee level of the system is higher.

ATrue

BFalse

Correct : B

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ATrue

BFalse

Question 2

In the data center power supply and distribution system, the low-voltage circuit breaker with three-stage protection feature is used for.

APrevent branch circuit short circuit caused by branch circuit overload

BPrevent the main circuit from being overloaded due to the short circuit of the branch circuit

CPrevent the main circuit from breaking due to branch circuit breaking

DPrevent the main circuit from breaking due to a short circuit in the branch circuit

Correct : B, D

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APrevent branch circuit short circuit caused by branch circuit overload

BPrevent the main circuit from being overloaded due to the short circuit of the branch circuit

CPrevent the main circuit from breaking due to branch circuit breaking

DPrevent the main circuit from breaking due to a short circuit in the branch circuit

Question 3

Which of the following statements about the battery is wrong:

AThe battery room should prevent the temperature from being too high to prevent thermal runaway.

BThe reason for the swelling of the battery is that the pressure becomes higher due to excessive gas evolution.

CWhen the battery reaches the end of its service life, it does not require special treatment and can be sold directly to scrap for recycling.

DWhen the battery leaks, do not touch it directly with your hands.

Correct : C

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AThe battery room should prevent the temperature from being too high to prevent thermal runaway.

BThe reason for the swelling of the battery is that the pressure becomes higher due to excessive gas evolution.

CWhen the battery reaches the end of its service life, it does not require special treatment and can be sold directly to scrap for recycling.

DWhen the battery leaks, do not touch it directly with your hands.

Question 4

The following air conditioning, which is comfort air conditioning?

Aroom dedicated air conditioning
B Clean air conditioning

CCommercial air conditioners

DMedical air conditioning

Correct : C

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Aroom dedicated air conditioning
B Clean air conditioning

CCommercial air conditioners

DMedical air conditioning

Question 5

The function of the following () parts is to help with oil return.

Aliquid lens

Boil sight glass

COil trap

Dreverse bend

Correct : C

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Aliquid lens

Boil sight glass

COil trap

Dreverse bend

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