FC0-U61 · Question #328
Which of the following statements is true about a brownout?
The correct answer is A. It is the situation of voltage drop in power supply.. A brownout is an electrical term that describes a prolonged or sustained drop in voltage in a power supply. This can lead to system instability or damage to electronic components.
Question
Which of the following statements is true about a brownout?
Options
- AIt is the situation of voltage drop in power supply.
- BIt supplies power to the devices in case of a power failure.
- CIt is a brief decrease in voltage at the power source.
- DIt is a device used to filter out the effects of voltage spikes and surges.
How the community answered
(28 responses)- A89% (25)
- B4% (1)
- D7% (2)
Why each option
A brownout is an electrical term that describes a prolonged or sustained drop in voltage in a power supply. This can lead to system instability or damage to electronic components.
A brownout is accurately defined as a situation involving a voltage drop in the power supply. It represents a prolonged period of abnormally low voltage, which differs from a brief sag and can cause devices to malfunction or be damaged.
A device that supplies power during a power failure is typically an Uninterruptible Power Supply (UPS) or a generator, not a brownout.
While a brownout is a decrease in voltage, a 'brief decrease' is more specifically referred to as a sag. A brownout implies a sustained or prolonged reduction in voltage.
A device used to filter out voltage spikes and surges is a surge protector, which protects against sudden, brief increases in voltage, not prolonged drops.
Concept tested: Understanding power supply voltage issues - brownout
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