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Boiler water-level indication: connections of the glass tube gauge In a glass-tube type boiler water indicator, one end is connected to the water space. Identify where the other end is connected. Choose the correct connection.

Q: Boiler water-level indication: connections of the glass tube gauge In a glass-tube type boiler water indicator, one end is connected to the water space. Identify where the other end is connected. Choose the correct connection.

Concept A boiler level gauge (glass tube) reads level by equalising pressures between water space (bottom connection) and steam space (top connection). The visible interface in the tube represents the actual drum level. Final Answer Steam space.

Difficulty: Easy

Water space (both ends)
Chimney or stack
Steam space
Superheater outlet

Correct Answer: Steam space

Explanation:

Concept

A boiler level gauge (glass tube) reads level by equalising pressures between water space (bottom connection) and steam space (top connection). The visible interface in the tube represents the actual drum level.

Final Answer
Steam space.

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