问题 问答题 简答题

大修期间一般进行哪些保护联动试验项目?

答案

参考答案:

大修期间一般进行下列试验项目:

(1)汽轮机保护试验;

(2)润滑油系统联动试验;

(3)密封油系统联动试验;

(4)抗燃油系统联动试验;

(5)定子冷却水系统联动试验;

(6)抽气止回阀开、关试验;

(7)高、低压加热器保护联锁试验;

(8)电动给水泵、汽动给水泵保护联锁试验;

(9)真空系统联动试验;

(10)循环水系统联动试验;

(11)凝结水泵联动试验;

(12)闭式冷却水系统联动试验;

(13)汽轮机盘车联动试验;

(14)旁路系统联动试验;

(15)汽轮机所有阀门联锁试验;

(16)锅炉保护联锁试验;

(17)风机保护及联锁试验;

(18)磨煤机保护及联锁试验;

(19)锅炉所有阀门试验;

(20)机、炉、电大联锁;

(21)大修中变更的保护联锁试验;

(22)运行中出现过异常的保护联锁试验。

阅读理解

Peter is from Japan. He went to America last month. One day, he walked into a small restaurant for dinner. He wanted to eat eggs, but he didn’t know how to say them in English. He looked around, and he saw a girl eating eggs. So he pointed the eggs on the girl’s table. The waiter knew what he would like. After some time, he brought eggs to Peter.

Then Peter wanted to eat mushrooms(蘑菇), but nobody ate mushrooms in the restaurant. He took out a pencil and drew a picture of a mushroom on the menu. The waiter saw the picture and then went away. After some time, he got back. He didn’t bring mushrooms to Peter, but he gave him a black umbrella(雨伞).

小题1:Where did the story take place(发生)?

A. In a library           B. In a hospital                C. In a restaurant

小题2:How did Peter get the eggs ?

A. He pointed the eggs on the girl’s table. and the waiter understood what he wanted to eat.

B. He told the waiter what he wanted to eat.

C. He drew a picture of an egg and the waiter understood what he wanted to eat.

小题3:What’s the Chinese meaning(意思) of “point”?

A. 扔                       B. 卖                   C. 指向

小题4: Why did the waiter bring an umbrella to Peter?

A. Because Peter wanted an umbrella.

B. Because the waiter thought the picture on the menu was an umbrella.

C. Because Peter drew an umbrella on the menu.

小题5:What can be the best title(标题) for the story?

A. A happy Trip             B. A Hard Dinner            C. A Bad Restaurant

名词解释