220-801 · Question #232
Upon entering a computer room, a technician is shocked by a static electricity discharge when touching one of the computers. Which of the following environmental controls should be adjusted so that…
The correct answer is D. The humidity level must be increased. Static electricity (ESD) accumulates most readily in dry, low-humidity environments because there are fewer water molecules in the air to dissipate electrical charges. Increasing the humidity level (D) raises the moisture content of the air, which allows static charges to…
Question
Upon entering a computer room, a technician is shocked by a static electricity discharge when touching one of the computers. Which of the following environmental controls should be adjusted so that technicians will not be shocked in the future?
Options
- AThe temperature must be increased.
- BThe humidity level must be decreased.
- CThe temperature must be decreased.
- DThe humidity level must be increased.
How the community answered
(50 responses)- A4% (2)
- B6% (3)
- C2% (1)
- D88% (44)
Explanation
Static electricity (ESD) accumulates most readily in dry, low-humidity environments because there are fewer water molecules in the air to dissipate electrical charges. Increasing the humidity level (D) raises the moisture content of the air, which allows static charges to dissipate harmlessly rather than building up to the point of a visible shock. The industry standard for computer rooms recommends maintaining relative humidity between approximately 45–55% to minimize ESD risk. Temperature (A, C) does not directly control static buildup. Decreasing humidity (B) would make the problem worse by creating an even drier environment.
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