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SarkariResultOutAdditional Assistant Engineer (Electrical) · 2026

Previous Year Question

Which of the following is a characteristic of a radial distribution system?
  1. Feeders originate from a single substation and supply power in one direction.
  2. Each feeder is supplied from both ends.
  3. It is primarily used for high-voltage transmission systems.
  4. Feeders are connected in a closed loop.

Correct answer: A

Explanation

In a radial system each feeder has a single source and power flows outward toward the loads in one direction. It is simple and economical but offers less supply continuity than ring or interconnected systems.

Step-by-step solution

Single-Direction Power Flow explanatory diagram

Correct Answer

A — Feeders originate from a single substation and supply power in one direction.

Explanation

In a radial system each feeder has a single source and power flows outward toward the loads in one direction. It is simple and economical but offers less supply continuity than ring or interconnected systems.

Key Concept

Single-Direction Power Flow

Exam Point

Radial = one source, one path.

Exam tip

Radial = one source, one path.

Quick method

Radial = one source, one path.