The lenses used in safety glasses, face shields, or helmets worn during GMAW procedures must be _____

a. made of glass
b. properly tinted
c. spatter resistant
d. opaque and blued


Ans: b. properly tinted

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The long, narrow surface of a piece of lumber is called its ____.

a.side b.end c.edge d.width

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A colony of guinea pigs usually has:

A) one dominant male and five to ten females B) two dominant males and five to ten females C) one dominant male and two or three females D) two dominant males and two or three females

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Files that contain nonprintable characters, such as machine instructions, are called binary files.

Answer the following statement true (T) or false (F)

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A wide band oxygen sensor can be made using what design?

A) Cup and planar B) Finger and thimble C) Cup and thimble D) Dual cell and single cell

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