Multiply
3 x 3
= 9
What is the formula for the area of a square?
Area = Length x Width
or A=L x W
DC
Direct Current
This type of power source is used for SMAW
Constant Current, or CC
What is the nominal size (diameter) of a 1/4-20 bolt?
1/4 inch
5 x 4
= 20
How many square inches are in 1 ft.2
144 in.2
12 in. x 12 in. = 144 in.2 (" commonly said as 144 square inches")
AC
Alternating Current
This type of power source is used for GMAW
Constant Voltage or CV
"___________" "tighty", lefty "_________"
Righty tighty, lefty loosey
6 x 6
= 36
What is the formula for the area of a circle?
Area = pi x r2
CV
Constant Voltage
What electrical setting do you adjust on a CC (Constant Current) power source to increase the current or heat?
Amperage/amps
How can you tell if a bolt/nut is a left-handed thread?
Notches cut into the edges, on outside
9 x 5
= 45
How many square feet are in a rectangle with dimensions 3ft. x 6 ft?
18 ft.2
WFS
Wire Feed Speed
What does increasing the voltage (V) do for a GMAW machine in terms of how it affects the arc?
Increasing the voltage (V) widens and lengthens the arc.
Decreasing the voltage (V) shortens and narrows the arc.
What is the drill size needed to tap a hole for 1/4-20 threads?
3 x 7
= 21
How would you find the volume (ft.3) of a rectangular tank?
V = L x W x H
Volume = Length x Width x Height
ipm or IPM
Inches Per Minute
What is the general name for a machine that can run SMAW, GMAW and GTAW?
A multi-process welding machine
("process" is referring to welding processes)
What is the wrench size needed to tighten a shielding gas line in the back of a GMAW machine? Most gas lines use this size.
11/16"