8
= __________.
Fill in the blank(s) with the appropriate word(s).
64
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?The ________ current of the spray mode produces good penetration and fusion, and the ____ current allows the weld pool to cool.
A. ?DCEN, DCEP B. ?DCEP, DCEN C. ?AC DCEP D. ?high, low
Chordal thickness is the straight line thickness of a gear tooth on the pitch circle.
Answer the following statement true (T) or false (F)
When sizing fuel gas piping for larger systems, the length of piping from meter to farthest appliance is increased by what percentage to allow for fittings in the pipe run?
a. 50% b. 25% c. 75% d. 10%
Green walls __________________
A. shade exterior walls B. mitigate temperature fluctuations on exterior wall surfaces C. limit exterior wall heat rise through evaportranspiration D. all of the above