Practice Quiz

Ophthalmic Technician

Category - Medical Equipment

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Before replacing the bulb in a projector, it must have been
  1. not recently replaced.
  2. turned off for a few minutes prior.
  3. unplugged.
  4. Both B and C.
Explanation
Answer: D - Both B and C.

Before replacing the bulb in a projector, it must have been unplugged and turned off for a few minutes. When in use, a projector’s bulb becomes hot and it can cause burns if touched while still hot.
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