DCEN concentrates about ____ of its welding heat on the work, and about ____ on the tungsten.
A. 1/4, 3/4
B. 2/3, 1/3
C. 1/2, 1/2
D. 1/3, 2/3
Answer: B
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Fill in the blank(s) with the appropriate word(s).
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Propane contains how many carbon atoms?
A) Four B) One C) Three D) Two
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The output voltage of a circuit at 70.7% of its maximum level measured in dB is:
A) 7 dB. B) 3 dB. C) -7 db. D) -3 dB.
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When a soap bubble solution is used to detect leaks in a system, the solution is __________ or __________ onto the piping circuit, primarily at __________. The formation of bubbles indicates that __________.
What will be an ideal response?
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