In a street lighting ring network, what is the primary reason for considering voltage drop?

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In a street lighting ring network, what is the primary reason for considering voltage drop?

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RRB JE EE 22 Apr 2025 Shift 2 CBT 2 Official Paper

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To maximise current flow
To decrease conductor resistance
To increase power loss for efficiency
To ensure all lights receive equal brightness

Answer 1

Concept:

In a street lighting ring network, voltage drop is an important design consideration. If the voltage drops significantly along the cable run, lights farther from the source will receive less voltage, leading to dimmer illumination. Ensuring a minimal voltage drop is essential so that all lights along the ring receive approximately the same voltage, ensuring consistent brightness.

Importance of Voltage Drop:

A well-regulated voltage throughout the network ensures uniform performance of lighting fixtures, which is critical for public safety, energy efficiency, and user satisfaction in street lighting systems.

Evaluation of Options:

Option 4: To ensure all lights receive equal brightness – Correct
This is the primary goal when accounting for voltage drop in street lighting systems.

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In a street lighting ring network, what is the primary reason for considering voltage drop?

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