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keke12345676 keke12345676
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Posts: 559
Rep: 1 0
6 years ago
When a cutting job is completed and the oxyfuel equipment is no longer needed, the first step in shutting
  down the oxyfuel cutting equipment is to _____.
 
  a. close the fuel gas cylinder valve
  b. back out the fuel gas and oxygen regulator adjusting screws
  c. open the fuel gas torch valve
  d. open the oxygen torch valve


[Ques. 2] What can occur when a torch tip or nozzle touches the work surface or when a bit of hot dross briefly
  interrupts the cutting flame?
 
  a. Carburization
  b. Backfire
  c. Oxidation
  d. Flashpoint


[Ques. 3] A carburizing flame has a white feather created by _____.
 
  a. too much oxygen
  b. too little carbon
  c. too much fuel
  d. too much vacuum


[Ques. 4] A cutting flame that has an excess of oxygen is called a(n) _____.
 
  a. cold flame
  b. neutral flame
  c. carburizing flame
  d. oxidizing flame


[Ques. 5] An oxyfuel cutting torch should be checked for leaks _____.
 
  a. each time it is used
  b. once a week
  c. every month
  d. after 1,000 hours
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brittcamp12brittcamp12
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#1
Posts: 341
Rep: 11 0
6 years ago
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keke12345676 Author
wrote...
#2
6 years ago
White Heavy Checkmark Correct!
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