APC DU0-001 NCPI Exam Practice Test Instant Access

Question 1

Which three key components make up a three-phase stationary power

distribution unit? (Choose three.)

ARectifier

BPanel board

CInput transformer

DRack mount bracket

EInput circuit breaker

Answer : B, C, E

Question 2

Which fire class involves live electrical equipment?

AClass A

BClass B

CClass C

DClass D

Answer : C

Question 3

Click the Exhibit button.

Which air distribution method is displayed in this picture?

AFully ducted supply, flooded return

BFlooded supply, fully ducted return

CFlooded supply, locally ducted return

DLocally ducted supply, flooded return

Answer : A

Question 4

Tracking achievement against agreed upon service levels is an example of

which specific management process?

APlanned down time

BInfrastructure improvement

CAvailability metrics reporting

DAdvanced warning for failure

Answer : C

Question 5

What is one cause of oscillatory transients?

ALightning strikes

BNon-unity power factors

CMotors turning on and off

DStatic electricity discharges

Answer : C

Question 6

What is the primary difference between double conversion and delta

conversion UPS systems?

ADouble conversion UPSs require a 1.3X generator oversizing. Delta
conversion UPSs require a 3X generator oversizing.

BDouble conversion UPSs are practical in size ranges from 0 - 20 kW.
Delta conversion UPSs are practical in size ranges of 20 kW to 1 MW.

CIn a double conversion UPS, 100% of the power is converted from AC to
DC and then again from DC to AC. In a delta conversion UPS, only the
difference between input and output power is converted.

DIn a double conversion UPS, the transformer has a special ferro-resonant
capability, which provides limited voltage regulation and output waveform
shaping. In a delta conversion UPS, a standard transformer is used.
,

Answer : C

Question 7

Which two practices help prevent data center fires? (Choose two.)

AUsing an FM-200 clean agent

BMandating a no-smoking policy

CAvoiding the use of acoustic foam

DUsing trash receptacles without covers

Answer : B, C

APC DU0-001 Data Center University Associate NCPI Exam Practice Test