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Steam pressure variation inside a nozzle — key dependencies Within a steam nozzle, identify the quantities that govern how static pressure changes along the flow passage. Choose the best option.

Difficulty: Easy

Velocity of steam
Specific volume of steam
Dryness fraction of steam
All of these

Correct Answer: All of these

Explanation:

Concept/Approach

Nozzle flow couples momentum and state: velocity rise drives static pressure drop (Bernoulli/energy balance).
Steam's specific volume (compressibility) and dryness fraction (quality) affect density and hence acceleration and pressure–area relations.

Final Answer
All of these

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