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megandunlap megandunlap
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6 years ago
When using GTAW for open-root V-groove welds on carbon steel pipe in the 5G position, start at a tack
  weld positioned at the _____.
 
  a. top of the pipe and weld downhill
  b. bottom of the pipe and weld uphill
  c. right side of the pipe and weld downhill
  d. left side of the pipe and weld downhill

 Q. 2

The solder most commonly used on low-pressure copper fittings is made from _____.
 
  a. 100 lead
  b. 50 tin and 50 silver
  c. 95tin and 5 antimony
  d. 45 silver, 25 zinc, and 30 copper

 Q. 3

Grease and oil must be kept away from oxygen tanks used for brazing because they _____.
 
  a. will contaminate the brazed joints and cause them to fail
  b. could trigger an explosion in the presence of oxygen
  c. are incompatible with lubricants used on the oxygen regulator
  d. will clog the oxyacetylene torch
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transfertransfer
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6 years ago
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megandunlap Author
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#2
6 years ago
Ready for finals now Monkey
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#3
6 years ago
Good luck my friend!
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