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APC DU0-001 Exam Questions
Data Center University Associate Certification (Page 10 )

Updated On: 17-Feb-2026
Page 10 of 66
PDF with 325 Questions

What is the main function of a UPS?

  1. To provide battery back-up power to IT equipment
  2. To regulate the voltage of power going to the racks
  3. To distribute power from the transformer to the racks
  4. To supply diesel-generated power when the utility is out

Answer(s): A



What is a function of a transformer in a line interactive UPS?

  1. To increase the power factor as the load increases
  2. To increase harmonics by stepping down the output
  3. To regulate output voltage as the input voltage varies
  4. To provide low impedance for switched mode power supplies

Answer(s): C



Which component of a line interactive UPS increases its battery life?

  1. Dual mains input
  2. Voltage regulating transformer
  3. Low impedance DC disconnect
  4. High impedance battery charge circuit

Answer(s): B



How long is the transfer to battery time for a double conversion online UPS?

  1. 0 ms (0 cycles)
  2. 8 ms (0.5 cycles)
  3. 16 ms (1 cycle)
  4. 500 ms (30 cycles)

Answer(s): A



What are two key characteristics of a UPS? (Choose two.)

  1. It tests voltages on IT equipment.
  2. It safeguards data in the event of a power loss.
  3. It measures energy consumption of IT equipment.
  4. It transfers IT equipment from utility to battery power.

Answer(s): B,D






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