?What is the basis of the series of letters after the letter B in the AWS classification system for brazing alloys.
A. ?It is the abbreviation of the alloy metals that can be brazed with this rod.
B. ?They stand for the initials of the inventor of the alloy.
C. ?They are radially selected by a board at the AWS.
D. ?They are the atomic symbols of the metals that make up the alloy.
Answer: D
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?The BIM model can be used by the __________ __________ for maintenance and operations activities. ?
Fill in the blank(s) with the appropriate word(s).
Where was the X Window system originally developed?
What will be an ideal response?
Which of the following statements about splicing or connecting a grounding electrode conductor is not true?
A. It is permitted to splice or connect the grounding electrode conductor only by exothermic welding or irreversible compression connectors. B. It is permitted to connect sections of copper busbars together to form the grounding electrode conductor. C. It is permitted to connect grounding electrode conductors together by using a copper busbar not less than 1?4 in. × 2 in. (6.4 mm × 50 mm). D. Listed wire connectors or exothermic welding is permitted to be used to connect grounding electrode taps to the busbar.
For a negative-logic pulse, the leading edge is the ________
A) LOW-to-HIGH transition B) negative-going edge C) positive-going edge D) rising edge