Which of the following distribution systems is more reliable?
Correct answer: C. Ring main system
- A. Radial system
- B. Tree system
- C. Ring main system
- D. All are equally reliable
Explanation
A ring-main distribution system can feed a load from either direction, so supply can often continue when one section develops a fault. Radial and tree systems generally have only one supply path and are therefore less reliable.
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