Q. What is the effect of increasing superheat at constant inlet steam pressure & condenser pressure on mean temperature of heat addition?

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Q. What is the effect of increasing steam inlet temperature on turbine internal efficiency?

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Q. What is the percentage drop in the ultimate strength of unalloyed steels when the steam temperature is raised from 400-500 degree Centigrade?

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Q. Apart from alloying, name a material that is used instead of ferritic steels to increase the ultimate strength of unalloyed steels.

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Q. Which of these cases will have a higher cycle efficiency?

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Q. For the given values of efficiency, inlet steam pressure and quality of steam, pressure limits can be determined by?

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Q. Why Reheating of steam is used?

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Q. Reheating of steam _____________

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Q. Efficiency of cycle will increase due to Reheating if _____________

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Q. Why don’t we use more than two reheats?

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Q. The cycle efficiency in a single reheat plant is influenced by _____________

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Q. The optimum reheat pressure for most of the modern power plants is ___________ of the initial steam pressure.

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Q. What is the effect of reheat on steam quality?

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Q. What should be the dryness fraction at the time of exhaust?

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Q. Reheat is preferred for the plants having efficiency greater than _____________

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Q. Which one of the following is an advantage of reheat cycle?

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Q. The product of steam rate & network when the steam rate is expressed in kg/kWh is equal to?

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Q. The product of heat rate & efficiency when the heat rate is expressed in kJ/kWh is equal to?

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Q. What is the effect of reheat pressure on mean temperature of heat addition Tml?

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Q. Why is the steam not allowed to expand deep into the two phase region before it is taken to reheating?

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