When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively____________________?
Correct answer: A. Decreases & increases
- A. Decreases & increases
- B. Increases & increases
- C. Increases & decreases
- D. Decreases & decreases
Explanation
Throttling is isenthalpic, and when wet steam expands to a lower pressure its saturation temperature falls while its dryness fraction generally rises. Thus the exit temperature decreases and the quality increases.
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