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Questions and Answers
What causes an arc flash?
What causes an arc flash?
- Low temperatures
- High-voltage gap and breakdown between conductors (correct)
- Excessive humidity
- Proximity to water
Which of the following is NOT listed as a cause of arc flash in the text?
Which of the following is NOT listed as a cause of arc flash in the text?
- Corrosion
- Dust
- Accidental touching
- Plastic materials (correct)
What factor does NOT determine the severity of an arc flash injury?
What factor does NOT determine the severity of an arc flash injury?
- Color of the conductors (correct)
- Temperature
- Time for circuit to break
- Proximity of the worker to the hazard
Which of the following is NOT a consequence of an arc flash?
Which of the following is NOT a consequence of an arc flash?
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What type of burns can be caused by an arc flash?
What type of burns can be caused by an arc flash?
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Which of the following is NOT a cause of electrical fires according to the text?
Which of the following is NOT a cause of electrical fires according to the text?
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What can high-voltage arcs produce besides thermal radiation?
What can high-voltage arcs produce besides thermal radiation?
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What determines the intensity of an arc blast?
What determines the intensity of an arc blast?
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What kind of injury can be caused by accidental touching in relation to electrical hazards?
What kind of injury can be caused by accidental touching in relation to electrical hazards?
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'Faulty insulation' is a common cause of what type of hazard?
'Faulty insulation' is a common cause of what type of hazard?
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