T he condenser does not control back-pressure at the turbine exhaust.（    ）

试卷相关题目

• 1It   is unnecessary to reduce the steam to water so that it can be pumped back  through  the  system.（    ）

  A.Right

  B.Wrong

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• 2The saturation temperature would not remove excess energy from the     system and reduce the overall efficiency.（    ）

  A.Right

  B.Wrong

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• 3It is suggested that the water should not be cooled below the saturation

  A.erature.（ ）A.Right

  B.Wrong

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• 4A condenser is a heat exchanger removing the vaporization heat from the exhaust steam and condensing the exhaust steam into water.（    ）

  A.Right

  B.Wrong

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• 5A desperate man will stop at nothing to get（    ）he wants.

  A.that

  B.what

  C.which

  D.who

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• 6The important factor controlling the turbine backpressure is the temperature

  A.Right

  B.Wrong

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• 7The temperature of cooling water wil increase its temperature between 15° Fand 20° Fas it passes through the condenser.（    ）

  A.Right

  B.Wrong

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• 8The terminal difference means the temperature difference between the     cooling water and the turbine exhaust steam（    ）

  A.Right

  B.Wrong

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• 9The temperature increase of the cooling water and the terminal differenrce depend  on  3 factors.（    ）

  A.Right

  B.Wrong

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• 10The exhaust steam temperature does not rely on the temperature of the     cooling water which enters the condenser.（    ）

  A.Right

  B.Wrong

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