DU0-001 · Question #69
Undervoltage is a more technically accurate term to describe what event?
The correct answer is B. Brownout. Undervoltage describes a condition where electrical supply drops below normal levels without a complete outage, which is precisely what a brownout is - a partial reduction in voltage that causes lights to dim and equipment to underperform. Option A, blackout, is wrong because…
Question
Options
- ABlackout
- BBrownout
- CPower drought
- DPower suppression
How the community answered
(29 responses)- A10% (3)
- B79% (23)
- C3% (1)
- D7% (2)
Explanation
Undervoltage describes a condition where electrical supply drops below normal levels without a complete outage, which is precisely what a brownout is - a partial reduction in voltage that causes lights to dim and equipment to underperform. Option A, blackout, is wrong because that refers to a total loss of power, not reduced voltage. Options C and D (power drought and power suppression) are not recognized technical terms in electrical engineering and serve as invented distractors.
Memory tip: Associate "brown" with dim, weakened light. A brownout dims your lights because voltage is low (under normal levels), while a blackout cuts them out entirely. Undervoltage = brownout, because partial voltage = partial light.
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