Before opening cylinder valves, verify that the adjusting screws on the oxygen and
fuel gas regulators are ___________.
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Fully counterclockwise
Most fuel gas fittings have _________ threads.
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Left-hand
If an acetylene cylinder is found lying on its side, you should _______ before using it.
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Stand it upright and wait at least one hour
The cutting tips used with liquefied fuel gases must have at least ________ preheat holes.
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Six
Oxygen has a strong garlic-like odor so leaks can be readily detected.
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True
When pure oxygen is combined with fuel gases, the pure oxygen produces
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A high temperature flame needed for flame cutting
For gas welding, either the face shield or the lenses of the safety glasses must be an
approved shade _______ filter
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fuel gas regulators are ___________.
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Fully counterclockwise
Most fuel gas fittings have _________ threads.
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Left-hand
If an acetylene cylinder is found lying on its side, you should _______ before using it.
, Give this one a try later!
Stand it upright and wait at least one hour
The cutting tips used with liquefied fuel gases must have at least ________ preheat holes.
Give this one a try later!
Six
Oxygen has a strong garlic-like odor so leaks can be readily detected.
Give this one a try later!
True
When pure oxygen is combined with fuel gases, the pure oxygen produces
Give this one a try later!
A high temperature flame needed for flame cutting
For gas welding, either the face shield or the lenses of the safety glasses must be an
approved shade _______ filter
Give this one a try later!
