In developed countries, the traditional paradigm for moving electricity     a round is very simple.（    ）

试卷相关题目

• 1The 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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• 2The temperature increase of the cooling water and the terminal differenrce depend  on  3 factors.（    ）

  A.Right

  B.Wrong

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• 3The terminal difference means the temperature difference between the     cooling water and the turbine exhaust steam（    ）

  A.Right

  B.Wrong

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• 4The 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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• 5The important factor controlling the turbine backpressure is the temperature

  A.Right

  B.Wrong

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• 6Usually the generating plants are very large and located near heavily populated  areas.（    ）

  A.Right

  B.Wrong

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• 7The transmission network can move the power over long distances to its     w holesale  customer.（    ）

  A.Right

  B.Wrong

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• 8In the substation the power is stepped down from a transmission leve voltage to a distribution level voltage.（    ）

  A.Right

  B.Wrong

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• 9At the service location, the power is stepped down again from the service voltage to distribution voltage.（    ）

  A.Right

  B.Wrong

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• 10According to the author, knowing the cause of the misery will help（    ）

  A.shorten the duration of the illness

  B.the patient buy medicine over the counter

  C.the patient obtain cheaper prescription drugs

  D.prevent people from catching colds and the flu

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