Welding Chap 12, 2, questions well
answered already passed (latest update)
Oxyfuel cutting is best suited for use on... - correct answer ✔✔Ferrous Metals
The stream of high-pressure cutting oxygen that is directed from an oxyfuel torch causes the
metal to instantaneously... - correct answer ✔✔Oxidize
The recommended range of tinting for either the face shield or the safety glass lenses used
during an oxyfuel cutting operation is... - correct answer ✔✔3 to 6
Most welding environment fires occur during... - correct answer ✔✔Oxyfuel gas welding or
cutting
When preparing a tank or vessel that might have contained flammable materials to be cut with
an oxyfuel cutting torch, the best approach is to... - correct answer ✔✔Fill it with water
When pure oxygen is combined with a fuel gas, it produces a... - correct answer ✔✔High-
temperature flame for cutting
The most common size of oxygen cylinder used in oxyfuel cutting applications is... - correct
answer ✔✔227 cubic feet (6.4 cubic meters)
If an acetylene cylinder is found lying on its side, what should be done before it is used? -
correct answer ✔✔Stand it upright and wait at least one hour
, The max hourly rate at which acetylene gas can be withdrawn from a cylinder is... - correct
answer ✔✔1/7th of the cylinder's capacity
The fuel gas that burns with the lowest flame temperature is... - correct answer ✔✔Propane
Most gas pressure regulators contain two gauges--one that indicates the cylinder pressure and
one indicates the... - correct answer ✔✔Pressure of the gas at the regulator outlet
Oxyfuel cutting equipment that had left-hand threads and a V-notch in the nut are most likely to
be... - correct answer ✔✔Fuel gas fitting
The type of cutting torch that uses a vacuum created by oxygen flow to draw in fuel from a very-
low pressure fuel source is a... - correct answer ✔✔Injector torch
A friction lighter produces sparks when its steel surface is rubbed with a piece of... - correct
answer ✔✔Flint
A computer-controlled plate cutting machine and an optical pattern-tracing machine are
examples of... - correct answer ✔✔Fixed-location machines
Cracking the cylinder valves during the setup of oxyfuel equipment is a way of... - correct answer
✔✔Removing dirt from the valves
Before opening cylinder valves, verify that the adjusting screws on the oxygen and fuel gas
regulators have been... - correct answer ✔✔Loosened
Oxyfuel cutting equipment is typically leak tested using a... - correct answer ✔✔Solution that
produces bubbles
answered already passed (latest update)
Oxyfuel cutting is best suited for use on... - correct answer ✔✔Ferrous Metals
The stream of high-pressure cutting oxygen that is directed from an oxyfuel torch causes the
metal to instantaneously... - correct answer ✔✔Oxidize
The recommended range of tinting for either the face shield or the safety glass lenses used
during an oxyfuel cutting operation is... - correct answer ✔✔3 to 6
Most welding environment fires occur during... - correct answer ✔✔Oxyfuel gas welding or
cutting
When preparing a tank or vessel that might have contained flammable materials to be cut with
an oxyfuel cutting torch, the best approach is to... - correct answer ✔✔Fill it with water
When pure oxygen is combined with a fuel gas, it produces a... - correct answer ✔✔High-
temperature flame for cutting
The most common size of oxygen cylinder used in oxyfuel cutting applications is... - correct
answer ✔✔227 cubic feet (6.4 cubic meters)
If an acetylene cylinder is found lying on its side, what should be done before it is used? -
correct answer ✔✔Stand it upright and wait at least one hour
, The max hourly rate at which acetylene gas can be withdrawn from a cylinder is... - correct
answer ✔✔1/7th of the cylinder's capacity
The fuel gas that burns with the lowest flame temperature is... - correct answer ✔✔Propane
Most gas pressure regulators contain two gauges--one that indicates the cylinder pressure and
one indicates the... - correct answer ✔✔Pressure of the gas at the regulator outlet
Oxyfuel cutting equipment that had left-hand threads and a V-notch in the nut are most likely to
be... - correct answer ✔✔Fuel gas fitting
The type of cutting torch that uses a vacuum created by oxygen flow to draw in fuel from a very-
low pressure fuel source is a... - correct answer ✔✔Injector torch
A friction lighter produces sparks when its steel surface is rubbed with a piece of... - correct
answer ✔✔Flint
A computer-controlled plate cutting machine and an optical pattern-tracing machine are
examples of... - correct answer ✔✔Fixed-location machines
Cracking the cylinder valves during the setup of oxyfuel equipment is a way of... - correct answer
✔✔Removing dirt from the valves
Before opening cylinder valves, verify that the adjusting screws on the oxygen and fuel gas
regulators have been... - correct answer ✔✔Loosened
Oxyfuel cutting equipment is typically leak tested using a... - correct answer ✔✔Solution that
produces bubbles
