The typical shielding gas for GTAW on deoxidized copper that is over 1/8" (3.2 mm) thick is _____

a. helium
b. hydrogen
c. oxygen
d. argon


a

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Indicate whether the statement is true or false

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In an electrical circuit, amps are:

A) One coulomb of electrons flowing in one second. B) Opposition to the flow of electricity. C) The ability to make current flow. D) The ability of electricity to do work.

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When entering a confined space:

A) You should wear clothes that are resistant to spontaneous arcing. B) You should take a radio or cell phone for emergency calls in case you pass out. C) Another worker should be posted outside the confined space. D) You should leave a note at the entry point.

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The symbol stands for ____________________.

Fill in the blank(s) with the appropriate word(s).

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