Which of the following is true of a flashback?
A) It produces a low whistle.
B) When it occurs, the fuel valve should be closed first, followed by the oxygen valve.
C) A flame is burning back inside the tip, torch, hose, or regulator.
D) The valves should be closed slowly.
Correct Answer:
Verified
Q3: There are _ basic methods for mixing
Q4: The _ pressure gauge shows the pressure
Q5: The injector allows oxygen at the higher
Q12: Which of the following is true of
Q28: The _ gauge is used to indicate
Q33: The purpose of the _ valve is
Q34: _ seal tips must be tightened with
Q37: When mixing oxygen and fuel gas, one
Q38: In a two-stage regulator, the first spring
Q50: Gauges that do not read _ when
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