Question 11046 of 938 · Maryland Journeyperson Electrician Exam
Which communications cable type is required in a vertical riser shaft between floors, unless a higher-rated type is used?
Exactly one answer is correct.
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Correct answer to question 11046
- A: CMR
Explanation
CMR is riser-rated communications cable for vertical runs in shafts between floors. CMP plenum cable may substitute for it. CM and CMX are not riser rated.
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