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| Q. |
When bypass valve is opened to |
| A. | increase pressure |
| B. | increase unit speed |
| C. | increase unit power |
| D. | increase the amount of fresh steam |
| Answer» D. increase the amount of fresh steam | |
| Explanation: when a by pass valve is opened, a fresh steam is introduced into the turbine, thereby increasing the amount of fresh steam. the main purpose of by pass governing is taken into full action when the turbine is overloaded for short durations. | |
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