On a fillet weld, underfill occurs when the face of the weld is more _____ than the code.?
?
A. flat?
B. concave?
C. convex?
D. laminated?
Answer: B
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?When making a root weld with a straight step or "T", how do you get good root fusion to the backing strip?
A. ?By pushing the electrode into the root opening. B. ?By using a long arc with high amperage. C. ?By holding the electrode at a steep leading angle. D. ?By changing from DCEP to DCEN or AC current.
Give one example of when to use a break line.
What will be an ideal response?
The substance that is not one of the criteria air pollutants is
a. SO2 b. NO2 c. CO2 d. O3 e. CO
Describe the relationship between the frequency of the clock and that of the Q output of a J-K flip-flop configured in the TOGGLE mode
A) It divides by 2. B) It divides by 4. C) It multiples by 2. D) They have no relationship.