Chapter 13: Oxyfuel Gas Welding Exam #1 Question with
verified answers
A(n) _____ flame is correct for most oxyacetylene welding. - √√neutral
Which of the following is not part of an oxyfuel gas welding outfit. - √√Oxygen
transformer
A torch tip orifice size of ______ is suggested for welding 1/8" (3mm) mild steel. -
√√57
True or False: The most common type of torch used for oxyacetylene welding is
the positive-pressure welding torch. - √√True
Why are the gas cylinders valves cracked open briefly right before the regulators
are installed? - √√To clear debris from the cylinder valve opening
____ should be applied to the joints of an oxyfuel welding outfit to check for
leaks. - √√Nonpetroleum-based soap solution
Which of the following is not the possible cause of a backfire. - √√Gas Flow rate
too high
The inner cone of an oxyacetylene flame should be positioned ______ the weld
pool. - √√Within the boundaries of an 1/16" - 1/8" above
, What step can be taken to prevent undercutting on an inside corner joint that is
welded in the horizontal welding position? - √√Use an inclined half-moon torch
motion
What is the approximate travel angle used to weld a butt joint in the flat welding
positions? - √√35-45
True or false? The high pressure and low pressure gauges on both the acetylene
and oxygen regulators should read 3-5 psig after the oxyacetylene outfit has been
properly shut down - √√true
True or false? Before any welding equipment is used, it is essential to check the
condition of the equipment to make sure the welding outfit is properly
assembled. - √√true
The ______ primarily determines the selection of the correct size welding torch
tip. - √√Metal thickness
The eye of the weld pool indicates the ______. - √√Movement of the molten
metal
When running a continuous weld pool, the torch tip should be held at a ______
travel angle. - √√35°-45°
The tip of the inner flame should be _____ from the base metal surface. -
√√1/16″-1/8″ (1.6mm-3.2mm)
verified answers
A(n) _____ flame is correct for most oxyacetylene welding. - √√neutral
Which of the following is not part of an oxyfuel gas welding outfit. - √√Oxygen
transformer
A torch tip orifice size of ______ is suggested for welding 1/8" (3mm) mild steel. -
√√57
True or False: The most common type of torch used for oxyacetylene welding is
the positive-pressure welding torch. - √√True
Why are the gas cylinders valves cracked open briefly right before the regulators
are installed? - √√To clear debris from the cylinder valve opening
____ should be applied to the joints of an oxyfuel welding outfit to check for
leaks. - √√Nonpetroleum-based soap solution
Which of the following is not the possible cause of a backfire. - √√Gas Flow rate
too high
The inner cone of an oxyacetylene flame should be positioned ______ the weld
pool. - √√Within the boundaries of an 1/16" - 1/8" above
, What step can be taken to prevent undercutting on an inside corner joint that is
welded in the horizontal welding position? - √√Use an inclined half-moon torch
motion
What is the approximate travel angle used to weld a butt joint in the flat welding
positions? - √√35-45
True or false? The high pressure and low pressure gauges on both the acetylene
and oxygen regulators should read 3-5 psig after the oxyacetylene outfit has been
properly shut down - √√true
True or false? Before any welding equipment is used, it is essential to check the
condition of the equipment to make sure the welding outfit is properly
assembled. - √√true
The ______ primarily determines the selection of the correct size welding torch
tip. - √√Metal thickness
The eye of the weld pool indicates the ______. - √√Movement of the molten
metal
When running a continuous weld pool, the torch tip should be held at a ______
travel angle. - √√35°-45°
The tip of the inner flame should be _____ from the base metal surface. -
√√1/16″-1/8″ (1.6mm-3.2mm)
