Sailors used to become sick with scurvy but it was discovered that apples could prevent this disease
Indicate whether the statement is true or false
F
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There are _____ different techniques that are commonly used with the GTAW process.? ?
A. two? B. three? C. four? D. five?
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On a small gas engine, how often should the oil be changed?
a. after every 5 hours of use c. after every 100 hours of use b. after every 25 hours of use d. after every 200 hours of use
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____ is the classification of weld metal analysis.
A. F-number B. A-number C. Filler metal specification number D. Classification number
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________ wrenches are widely used by machinists and mechanics to provide the correct amount of tightening pressure on a screw or nut
Fill in the blank(s) with correct word
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