问题 问答题 简答题

检测液化气站时,应注意什么?

答案

参考答案:

检测液化气站时,应注意:(1)先查阅设计图纸,了解液化气站总体防雷情况。(2)了解罐壁厚度,如小于4毫米,要有防直击雷措施。(3)注意检查液化气管道及法兰盘处有没有跨接。(4)加压间及充气间,天面有否避雷带,室内设备有否接地,是否符合要求。(5)如果液化气储罐采用阴极保护装置,则应按阴极保护装置要求进行检测。(6)液化气站总电源处有否安装防爆型电源避雷器。

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完形填空。
     It was raining hard when Jenny planned to go out for shopping.She
stayed at the door for 1 seconds and decided to 2 bus to the shopping
center.
     To her surprise she 3 so many people at the bus stop and the buses 4.
She didn’t know 5 . Another bus came and people crowded on at once.
She didn’t feel like 6like that, and had to 7 the stop. She looked at the
heavy rain and buses.The traffic was 8 at all, but was it possible to take
a taxi? She thought.She looked 9 to see if there were taxis coming or going
by. Maybe because of the bad weather, she didn’t even see a taxi. How
bad she felt! Then she decided to go back home and spent her afternoon
10 TV at home.
( )1  A. few    
( )2  A. by      
( )3  A. found  
( )4  A. crowded
( )5  A. to do  
( )6  A. do      
( )7  A. stand at
( )8  A. busy    
( )9  A. one way
( )10 A. watch  

B. a few        
B. on a          
B. heard        
B.  were crowded
B. to do what    
B. did          
B. wait for      
B. not busy      
B. the two ways  
B. watched      

C. little      
C. take a      
C. looked at    
C. were crowding
C. what to do  
C. to do        
C. stand        
C. heavy        
C. both ways    
C. to watch    

D. a little    
D. take        
D. understood  
D. have crowded
D. how to do    
D. doing        
D. wait        
D. much        
D. some ways    
D. watching    

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