Ag Mech EOPA 1

What type of sheilding gas is used for MIG welding steel?

• an artificial stone-like material formed by combining aggregate, Portland cement, and water
• 75% Argon 25% Carbon Dioxide
• Argon and Carbon Dioxide
• a standard for the safe installation of electrical wiring and equipment

What is the mix ratio for shielding gas used in MIG welding steel?

• an artificial stone-like material formed by combining aggregate, Portland cement, and water
• a protective device worn on the head while arc welding to protect the eyes, skin, and other exposed parts from injury
• 75% Argon 25% Carbon Dioxide
• a special tip used in cutting metal with gas systems such as oxyacetylene

What is the minimum recommended shade lens for MIG welding?

• an electrical source and wires connected to an electrical device
• the consistency of wet concrete when the various ingredients are mixed together correctly
• 25-30cfm
• #10

The flow rate of shielding gas while MIG welding steel should be...

• L' x W' x T'
• a measure of the resistance of a material to the flow of an electrical current
• 25-30cfm
• an engine with four strokes per cycle

"stick out " of welding wire should be?

• 3/8" - 1/2"
• sand and gravel that comprise the bulk of concrete
• a long, thin metal rod used in welding to add to or fill joins when welding or brazing
• a frame or mold that holds newly placed concrete until it has been set

travel speed

• a device that converts the energy in fuel into rotating power
• The speed at which you move the welder along the metal that you're welding
• the location of a weld relative to the location of the welding equipment, such as flat, vertical, horizontal, or overhead
• The failure of the base metal and the filler metal to combine properly. This failure of fusion can be caused by low or inadequate heat, poor weld technique, insufficient gap or improper edge set up

work clamp

• Powder made by grinding and treating limestone for use in masonry materials
• 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
• The sole purpose is to guide the welding wire from the welding feeder through the torch cable and to the contact tip
• a three dimensional representation of requirements for fire to occur: fuel, heat, and oxygen

contact tip

• A layer of mortar
• Proper drying of concrete
• 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
• a measure of energy available or work that can be done using one ampere at one volt

MIG

• The size of the wire that comes out of the welder
• the use of engines, animals, and other sources of energy to operate equipment used in agriculture
• an electrical source and wires connected to an electrical device
• Metal inert gas

sheilding gas

• 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
• the assembly in an oxyacetylene system that mixes oxygen and acetylene to provide the desired flame
• Concrete base under a wall
• the use of 1000 watts per hour