The standard electrode extension for FCAW-S with 0.045" (1.1 mm) wire and an insulating nozzle is _____
a. 1/4" to 3/8" (6 to 9.5 mm)
b. 1/4" to 3/4" (6 to 19 mm)
c. 1/2" to 1-1/2" (13 to 38 mm)
d. 3/4" to 1-1/4" (19 to 32 mm)
d
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On some headers, evenly spaced ____ marks appear in the horizontal and vertical directions outside the border. This helps readers of the drawing locate areas on the sheet where specific features can be found.
A. border B. header C. title block D. location grid
You built a retaining wall 15 feet long and 5 stones high, using stones 15 inches wide, 6 inches high, and 10 inches deep. You first needed a footer 12 inches wide with 4 inches of crushed stone in the bottom. You added 1.5 inches of stone dust, then a row of stone with the top level with the ground.
a. How deep is the footer? b. How many cubic feet of dirt were removed? c. How many cubic feet of crushed stone were used? d. How many cubic feet of stone dust were used? e. How many stones were used in the footer? f. What is the height of the wall in feet? g. How many stones are in the wall above ground?
A(n) ____________________ switch is used when a light or group of lights, or other load, must be controlled from one switching point.
Fill in the blank(s) with the appropriate word(s).
Mixed format: 
(with a space between the whole number and the numerator)Fraction format: 
Reduce all fractions. A piece of carbon 
inch thick has a copper plating of 
inch on each side. What is the total thickness?
Fill in the blank(s) with the appropriate word(s).