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220-1102 · Question #852
220-1102 Question #852: Real Exam Question with Answer & Explanation
The correct answer is A: The electrical source is not grounded.. A surge suppressor is critical when the electrical source is not grounded, as proper grounding provides the safe path necessary to dissipate excess electrical current from surges.
Hardware
Question
Which of the following is a situation in which a surge suppressor is considered critical?
Options
- AThe electrical source is not grounded.
- BA device requires 220V or higher.
- CA device is being turned on for the first time.
- DThe electrical source is near high humidity.
Explanation
A surge suppressor is critical when the electrical source is not grounded, as proper grounding provides the safe path necessary to dissipate excess electrical current from surges.
Common mistakes.
- B. A device requiring 220V or higher refers to its voltage requirement and is unrelated to the fundamental need for surge protection against voltage spikes.
- C. Turning a device on for the first time does not inherently increase the risk of a power surge or make a surge suppressor more critical than during regular operation.
- D. While high humidity can cause electrical issues, it is not the primary condition that makes a surge suppressor critical; its main function is against voltage spikes, which rely on proper grounding for dissipation.
Concept tested. Importance of surge suppressors and grounding
Topics
#Surge suppressor#Power protection#Grounding#Electrical safety
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