All carbon steel filler metals used for GMAW contain _____
a. a flux core
b. slag
c. alloys
d. shielding gases
c
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When installing hammer-driven pins and studs in soft concrete block, the drive pin or stud should be embedded in the concrete for at least _____.
a. 1/2" (13 mm) b. 5/8" (16 mm) c. 3/4" (19 mm) d. 1-1/4" (32 mm)
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What is the step-down turns ratio of a transformer with 200 turns in the primary and 100 turns in the secondary?
a. 1:2 b. 2:1 c. 2:2 d. 3:4
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Insufficient _____ can result in rapid cooling of a tack weld or weld, resulting in cracking.? ?
A. heating? B. preheating? C. cooling? D. precooling?
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The abbreviation for countersink is ____________________.
Fill in the blank(s) with the appropriate word(s).
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