APC DU0-001 Exam (page: 13)
APC Data Center University Associate Certification
Updated on: 15-Feb-2026

Viewing Page 13 of 66

What defines a sub-panel?

  1. An enclosure consisting of buss-bars and circuit breakers located at the service entrance to a building
  2. An enclosure consisting of buss-bars and circuit breakers with the fundamental purpose of distributing power to receptacles and the load
  3. An enclosure consisting of buss-bars and circuit breakers designed to accept two sources of power and operate as a best source selector
  4. An enclosure consisting of buss-bars and draw-out circuit breakers with the fundamental purpose of distributing power to branch distribution panels

Answer(s): B



What are three components of power distribution? (Choose three.)

  1. Flexible conduit
  2. Circuit / branch circuit
  3. Automatic Transfer Switch (ATS)
  4. Uninterruptible Power Supply (UPS)
  5. Ground Loop

Answer(s): B,C,D



Which statement is a recognized characteristic of single-phase power?

  1. Single-phase power excludes the use of three-phase power in the data center.
  2. Single-phase power provides an effective means for delivering DC power to the data center.
  3. Single-phase power is an effective choice of power supply when data center users require large volumes of power.
  4. Single-phase power implies that power comes into the data center with one "hot" wire, along with accompanying neutral and ground.

Answer(s): D



Which statement illustrates a characteristic of nominal voltage?

  1. Nominal voltage is the voltage reference published by the power company.
  2. In most geographies, nominal voltage is fixed at either 380 V or 460 V.
  3. Nominal voltage is calculated based upon the load characteristics of the end user.
  4. Nominal voltage is the voltage that is supplied to the building and factors in power distribution losses.

Answer(s): A



Which power distribution component is closest to the data center IT load?

  1. Switchgear
  2. Wet cell battery
  3. Diesel generator
  4. Uninterruptible power supply

Answer(s): D



Viewing Page 13 of 66



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