Practice Quiz

CompTIA A+ 220-901

Category - Hardware

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An employee says his monitor is acting strangely and is asking how to open the CRT. What do you tell the employee?
  1. Unplug the CRT before opening the case to avoid electrical shock.
  2. Unplug the CRT so you don’t damage the monitor.
  3. Never open a CRT monitor without special equipment and training.
  4. Never open a CRT monitor because the CRT tube will shatter.
Explanation
Answer: C - You should tell the employee to never open a CRT monitor without special equipment and training. The most dangerous aspect of a CRT monitor is its ability to store a dangerous charge even if it is unplugged.

Key Takeaway: Besides the stored electrical charge, touching the tube inside the CRT case is extremely dangerous and should only be done by technicians with special training and equipment.
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