Question 132General Subjects - QMED70% to pass
When welding with an oxyacetylene outfit, _______________.
AI Explanation
The correct answer is D) open the acetylene cylinder valve only 1/4 to 1/2 turn and leave the wrench on the valve stem.
The reasoning behind this is that when using an oxyacetylene outfit, you want to minimize the amount the acetylene cylinder is opened to reduce the risk of flashbacks and other potential hazards. Opening the valve only 1/4 to 1/2 turn and leaving the wrench on the valve stem allows for quick shutoff in case of an emergency.
The other options are incorrect because: A) opening the acetylene valve to 26 PSIG is too high and can increase the risk of flashbacks, B) a flashback is not normal and indicates a dangerous condition, and C) taping a leaking hose is not a proper repair and can be unsafe.
Related Questions
#130 Which of the following is true concerning the hose threads on compressed gas oxyacetylene regulators and torches? #131 When securing an oxyacetylene cutting outfit for an extended period, you should close the _______________.#133 With reference to the oxyacetylene welding of high carbon steels, hard-facing, and the welding of non-ferrous alloys, such as monel, the best flame to use is termed a/an _______________.#134 Solder is an alloy of _______________.#135 Tinning a soldering iron will _______________.