3.9. Answers
B, C. Examples of high-voltage equipment are CRTs and PSUs. See "Recognizing High-Voltage Equipment".
B. Computer chips and components can be killed with about 200V. Review "ESD means electrostatic discharge (not extrasensory deprivation)".
A. Electrostatic discharge, or ESD, occurs when two objects carry a charge of different amounts, and the charge is transferred from one object to another to balance the charge. Check out "ESD means electrostatic discharge (not extrasensory deprivation)".
A. EMI — electromagnetic interference — is electrical interference from an external source. Peruse "Watching Out for EMI".
B. The Environmental Protection Agency (EPA) provides guidelines on how the components should be disposed of. Take a look at "Disposing of Components".
D. When you continuously work with your computer for prolonged periods of time, there is a chance of developing a repetitive strain injury. Peek at "Exploring Ergonomics".
A. The shock we give one another is typically 3,000V. Look over "ESD means electrostatic discharge (not extrasensory deprivation)".
C. You can prevent damage from ESD by using a grounding wrist strap. Study "Preventing ESD".
D. An ESD wrist strap contains a resistor. Refer to "Preventing ESD".
C. The risk for electrostatic discharge is greatest at low humidity. Examine "Preventing ESD".
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