Free APC DU0-001 Exam Questions (page: 11)

What are two advantages of the line interactive UPS? (Choose two.)

  1. High reliability
  2. High efficiency
  3. High frequency control
  4. Optimized for 10 kW and above

Answer(s): A,B



Which UPS topology uses a transfer switch between the primary power source and the inverter?

  1. Standby
  2. High speed relay
  3. Delta conversion online
  4. Double conversion online

Answer(s): A



Which UPS topology is most commonly used to protect small business and departmental servers where voltage regulation is required?

  1. Standby
  2. Line interactive
  3. High-speed relay
  4. Delta conversion online

Answer(s): B



What is the primary purpose of a UPS?

  1. To remove transients from the power path
  2. To detect and report power factor problems
  3. To provide battery backup power should the utility fail
  4. To convert from three-phase power to Single-phase power

Answer(s): C



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