What is the primary purpose of a UPS?

Question

Options

• ATo remove transients from the power path
• BTo detect and report power factor problems
• CTo provide battery backup power should the utility fail
• DTo convert from three-phase power to Single-phase power

• A
  7% (2)
• B
  4% (1)
• C
  86% (24)
• D
  4% (1)

Explanation

A UPS, or Uninterruptible Power Supply, is designed to keep equipment running by supplying battery-backed power when the main utility power fails, making C correct. Option A describes a surge protector or power conditioner, which filters out voltage spikes and electrical noise but cannot sustain power during an outage. Option B describes a power quality analyzer, a diagnostic tool not a backup device. Option D describes a phase converter, a completely different piece of electrical equipment unrelated to backup power.

Memory tip: Think of UPS as "Uninterrupted Power Supply" - its entire job is to make sure power is never interrupted, which requires a battery backup, not filtering, measuring, or converting.

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