Answer:
Some of the internal strain energy is relieved. 
There is some reduction in the number of dislocations. 
The electrical conductivity is recovered to its precold-worked state.
The thermal conductivity is recovered to its precold-worked state
Explanation:
The process of the recovery of a cold-worked material happens at a very low temperature, this process involves the movement and annihilation of points where there are defects, also there is the annihilation and change in position of dislocation points which leads to forming of the subgrains and the subgrains boundaries such as tilt, twist low angle boundaries. 
 
        
             
        
        
        
Answer:
GMAW
Explanation:
It's literally the initials of that type of welding
 
        
             
        
        
        
Answer:
 a. 0.28
Explanation: 
Given that
 porosity =30% 
 hydraulic gradient = 0.0014
hydraulic conductivity = 6.9 x 10⁻4 m/s
We know that average linear velocity given as



The velocity in m/d      ( 1 m/s =86400 m/d)
v= 0.27 m/d
So the nearest answer is 'a'.
 a. 0.28
 
        
             
        
        
        
Answer:
Option A is correct ( Stress relaxation is time- and temperature-dependent).
Explanation:
 
        
                    
             
        
        
        
Answer:
I think reduce your following distance