Practice Quiz

CEDIA ESPA EST Practice Test

Category - DHTI

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You are troubleshooting an issue with an incandescent lamp. The incandescent lamp brightens or dims when other fixtures are turned ON or OFF. Which of the following should you do to fix this problem?
  1. Check the neutral connection in the main electrical panel.
  2. Check circuit to correct over voltage situation.
  3. Check the wattage of the lamp and match it to the fixture.
  4. Replace the lamp.
Explanation
Answer - A - To fix this problem, you should check the neutral connection in the main electrical panel.

Key Takeaway: The most common problem with incandescent lamps is burnout. Only half of a batch of lamps last longer than the average, while the other half do not. If the lamp brightens or dims when other fixtures are turned ON or OFF, check if the AC power neutral connection is wired properly.
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