Welding Machines and Rods Quiz

What type of welding machines can switch between AC and DC?

• Old machines

• Nicer machines

• Only DC machines

• Only AC machines

What is a recommended type of welding machine if you want a nicer one?

• A cheap one from Amazon

• A TIG machine

• An old one from your grandpa's garage

• A DC machine

What do the first two digits of a steel rod's four-digit number represent?

• The welding position

• The tensile strength in psi

• The rod's diameter

• The rod's length

What does a '1' in the third digit of a rod's number indicate?

• It can only weld overhead

• It can only weld vertically

• It can weld in any position

• It can only weld in a flat position

What is the purpose of the flux around a welding rod?

• To make the rod heavier

• To increase the rod's length

• To protect the weld while it solidifies

• To add color to the weld

Which rod is known for a fast freeze characteristic?

• 6010

• 7018

• 6013

• 7024

What is the typical diameter of a rod recommended for most projects?

• 1/16 inch

• 3/32 inch

• 1/8 inch

• 5/32 inch

What does DCEP stand for?

• Direct Current Electrode Negative

• Direct Current Electrode Positive

• Alternating Current Electrode Positive

• Alternating Current Electrode Negative

What should you ensure about the surface before striking an arc?

• It is wet

• It is clean and free of rust

• It is covered in flux

• It is painted

What is a common issue when trying to tack with a full-length rod?

• The rod is too short

• The rod is too heavy

• The rod is too thick

• The rod is too shaky