Q. Feedwater heaters are of two types, they are ____________

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Q. In open feedwater heater __________

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Q. Closed heaters are also called __________

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Q. Expand TTD?

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Q. The value of TTD varies with __________

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Q. Why at least one open heater is used?

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Q. What are the advantages of open heater?

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Q. What do you mean by heater drip?

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Q. Which of the following material can be used as a moderator?

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Q. Closed heaters are __________

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Q. Feed water heaters are of how many types?

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Q. What is the other name of the open heater?

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Q. What is the condition of the fluids in closed heaters?

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Q. Closed heaters are ______________ heat exchangers.

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Q. What is the other name of the condensate obtained after condensation in a shell-and-tube heat exchanger type closed heaters?

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Q. What is the function of the trap applied to the condensate?

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Q. Which of these is the correct expression for terminal temperature difference(TTD)?

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Q. If terminal temperature difference (TTD) is too small, what will be its impact on plant efficiency?

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Q. If plant efficiency is high, what will be its effect on heater size?

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Q. When is a drain-cooler used?

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