What is a common symptom of a dirty or loose connector in the line?

• A. Continuous buzzing on the line.
• B. Steady hiss with full signal.
• C. Crackling, intermittent contact, or loss of signal.
• D. No audible symptoms.

Answer: (C)

When a line connector isn’t clean or tight, the contact path isn’t solid. Dirty or oxidized contacts add resistance and can bounce in and out of proper contact as the line is moved or vibrated. That leads to irregular connection quality, which you hear as crackling, intermittent contact, or occasional loss of signal. This pattern is exactly what you’d expect from a faulty connector, because the issue is the unreliable electrical contact rather than a constant noise source or a complete failure.

In contrast, continuous buzzing on the line usually points to a different interference issue, a steady hiss with full signal suggests a constant noise floor without losing connection, and no audible symptoms would mean the line is making solid contact with no contamination or looseness.