Which of the following statements is true about a brownout?

Question

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.

• A
  84% (41)
• B
  8% (4)
• C
  6% (3)
• D
  2% (1)

Explanation

A brownout is the situation of voltage drop in power supply. The overloading of a primary power source can cause brownouts. Answer option D is incorrect. The surge protector is a device used to smooth out power variations by filtering out the effects of voltage spikes and surges that are present in commercial power Answer option C is incorrect. Sag is a brief decrease in voltage at the power source. Answer option B is incorrect. Uninterrupted Power Supply (UPS) continues to supply power to the devices in case of power failure. Uninterruptible power supply (UPS) is a device that allows a computer to keep running for a short period of time in case of power failure or low voltage, using battery backup. It also provides protection against power surges. When power surge occurs, only the UPS charging circuit is affected, while the computer gets normal power.

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