Mechanical Engineering - Steam Nozzles and Turbines
Exercise :: Steam Nozzles and Turbines - Section 1
| 36. |
The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle efficiency) |
| A. |
ηS = ηB x ηN | | B. |
ηS = ηB/ηN | | C. |
ηS = ηN/ηB | | D. |
none of these |
Answer: Option A
Explanation:
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| 37. |
The critical pressure ratio for initially dry saturated steam is more as compared to initially wet steam. |
Answer: Option B
Explanation:
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| 38. |
In a convergent divergent nozzle, the discharge depends upon the initial conditions of steam and the area of nozzle at throat. |
Answer: Option A
Explanation:
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| 39. |
Parson's reaction turbine is a __________ reaction turbine. |
| A. |
40 percent | | B. |
50 percent | | C. |
60 percent | | D. |
70 percent |
Answer: Option B
Explanation:
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| 40. |
The turbine blades are |
| A. |
straight | | B. |
circular | | C. |
curved |
Answer: Option C
Explanation:
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