试题与答案

在两顶尖问如何测量偏心距

来源：www.tikuol.com
题型：问答题

题目：

在两顶尖问如何测量偏心距

答案：

参考答案：当偏心距小于百分表的量程范围时，把工件装夹在两顶尖间，用百分表测头接触在偏心圆上，转动偏心轴，百分表上指示出的最大值与最小值之差的一半即为偏心距。
当偏心距超过百分表量程范围时，先用百分表找出偏心圆的最低点，把可调量块调到同一水平高度上，转动偏心轴，找出偏心圆的最高点，在可调量块上加量块，使其高度与偏心圆最高点等高，加放量块高度的一半即为偏心距值。

考点：车工中级车工中级
试题推荐
题型：完形填空
完形填空。
         Much meaning can be carried clearly, with our eyes, so it is often     1     that eyes can speak.
         Do you have such kind of     2    ? In a bus you may look at a stranger, but not too long. And
if he     3    that he is being looked at, he may feel uncomfortable. The same in daily life. If you are
looked at for more than necessary, you will look at yourself up and down, to see if there is     4     
wrong with you. If nothing goes wrong, you will feel     5     toward the person who is looking at you
that way. Eyes do speak, right?
         Looking too long at someone may seem to be impolite. But sometimes things are different. If a
man looks at a woman for more than 10 seconds, it may means that he wishes to attract her attention,
to make her understand that he     6    her. When two people are in a conversation, the speaker will only
look at the listener from time to time,     7    make sure that the listener does pay attention     8     what
he or she is speaking. Lovers will enjoy looking at each other or being looked at for a long time, to show
something that     9     cannot express.
         Clearly, eye contact should be done according to the relationship between two people and the place 
   10   you stay.
( ) 1. A. spoken      
( ) 2. A. experience  
( ) 3. A. found       
( ) 4. A. anything    
( ) 5. A. happy       
( ) 6. A. loves       
( ) 7. A. in order that
( ) 8. A. for         
( ) 9. A. eyes              
( ) 10. A. which            		B. said        
B. eyes        
B. knew        
B. something  
B. angry       
B. hates       
B. so that     
B. of          
B. words         
B. that                		C. told          
C. mind          
C. finds         
C. everything    
C. sad            
C. thanks        
C. in order to   
C. with          
C. minds            
C. where       		D. talked      
D. news        
D. see         
D. nothing     
D. thankful    
D. looks at   
D. for        
D. to         
D. body                             
D. there   
查看答案
微信公众账号搜索答案