This joint is recommended, on aluminum alloys, when welding pipe or any time the weld is accessible from only one side:
A) Standard V joint B) V-groove with backing
C) Extended land bevel D) None of the above
C
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When using a self-contained recovery unit to recover refrigerant vapor, the discharge of the recovery unit is typically connected to _____.
a. a suitable plastic recovery bag b. a recovery cylinder c. the high-side port of the gauge manifold d. the low-side port of the gauge manifold
? Identify and state the historical significance of Robert E. Lee.
What will be an ideal response?
? Identify and state the historical significance of Al Capone.
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When a standpipe system is supplied from a public water main, operating a control valve between the building and the water main may close down the entire system. A special key may be required to operate this valve. This shutoff valve is frequently located in a box that is recessed in the
A. wall B. ceiling C. basement D. sidewalk