AG MECHANICS EOPA REVIEW 1 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Question:
What type of sheilding gas is used for MIG welding steel?
Answer:
Argon and Carbon Dioxide
Question:
What is the mix ratio for shielding gas used in MIG welding steel?
Answer:
75% Argon 25% Carbon Dioxide
Question:
What is the minimum recommended shade lens for MIG welding?
Answer:
#10
Question:
The flow rate of shielding gas while MIG welding steel should be...
Answer:
25-30cfm
Question:
"stick out " of welding wire should be?
Answer:
3/8" - 1/2"
Question:
travel speed
Answer:
The speed at which you move the welder along the metal that you're welding
Question:
work clamp
Answer:
This is used to complete the welding circuit should be fastened to the metal being welded as close as
possible so that the electrical flow wont have to travel so far
Question:
contact tip
Answer:
A consumable item on a GMAC welder which means that it wears out as electrode wire passes through it.
As the contact tip wears out it becomes larger
, Question:
MIG
Answer:
Metal inert gas
Question:
sheilding gas
Answer:
In GMAW, This gas is used to shield the weld and the surrounding areas so that normal atmospheric
gasses such as nitrogen and oxygen do not interfere and contaminate the weld as it is formed
Question:
gas flow meter
Answer:
A device which takes high pressure gas stored in the gas cylinder and reduces it to a usable level and flow
rate
Question:
porosity
Answer:
A situation when gas becomes trapped in the weld as it is being formed. That trapped gas then becomes
small holes which can be either spherical or cylindrical in shape
Question:
aws
Answer:
American Welding Society
Question:
wire size
Answer:
The size of the wire that comes out of the welder
Question:
GMAW welder
Answer:
Also called MIG welding, most commonly used in Auto collision and was originally developed in 1940 as
a way of fusing aluminum and other non-ferrous metals together
Question:
amperage
Answer:
the amount of current required to melt the base metal and the electrode
Question:
electrode (MIG welding process)
QUESTIONS AND CORRECT ANSWERS
Question:
What type of sheilding gas is used for MIG welding steel?
Answer:
Argon and Carbon Dioxide
Question:
What is the mix ratio for shielding gas used in MIG welding steel?
Answer:
75% Argon 25% Carbon Dioxide
Question:
What is the minimum recommended shade lens for MIG welding?
Answer:
#10
Question:
The flow rate of shielding gas while MIG welding steel should be...
Answer:
25-30cfm
Question:
"stick out " of welding wire should be?
Answer:
3/8" - 1/2"
Question:
travel speed
Answer:
The speed at which you move the welder along the metal that you're welding
Question:
work clamp
Answer:
This is used to complete the welding circuit should be fastened to the metal being welded as close as
possible so that the electrical flow wont have to travel so far
Question:
contact tip
Answer:
A consumable item on a GMAC welder which means that it wears out as electrode wire passes through it.
As the contact tip wears out it becomes larger
, Question:
MIG
Answer:
Metal inert gas
Question:
sheilding gas
Answer:
In GMAW, This gas is used to shield the weld and the surrounding areas so that normal atmospheric
gasses such as nitrogen and oxygen do not interfere and contaminate the weld as it is formed
Question:
gas flow meter
Answer:
A device which takes high pressure gas stored in the gas cylinder and reduces it to a usable level and flow
rate
Question:
porosity
Answer:
A situation when gas becomes trapped in the weld as it is being formed. That trapped gas then becomes
small holes which can be either spherical or cylindrical in shape
Question:
aws
Answer:
American Welding Society
Question:
wire size
Answer:
The size of the wire that comes out of the welder
Question:
GMAW welder
Answer:
Also called MIG welding, most commonly used in Auto collision and was originally developed in 1940 as
a way of fusing aluminum and other non-ferrous metals together
Question:
amperage
Answer:
the amount of current required to melt the base metal and the electrode
Question:
electrode (MIG welding process)
