Question
Between which two lines does a backbone coupler (BC) provide the connection?
Answer
A — Between the backbone line and a main line.
Correct: the backbone coupler BC provides the connection between the backbone line and the main line.
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An error or unclear wording? Report this questionAll proposed choices (exam context)
- A.Between the backbone line and a main line.✓
- B.Between two secondary lines.
- C.Between a main line and a secondary line.
- D.Between a line segment and the next line segment.
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