Technician A says that magnetic lines of force can be seen by placing iron filings on a piece of paper and then holding them over a magnet. Technician B says that the effects of magnetic lines of force can be seen using a compass. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
C
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Determine the resultant vector in standard position for the following vectors and express the magnitude to 3 significant digits and the angle to the nearest tenth degree. 
= 9,510 lb at 318.0°, 
= 5,280 lb at 26.6°, 
= 8,940 lb at
106.0°, 
= 6,030 lb at 77.9°
Fill in the blank(s) with the appropriate word(s).
Which of the following selection methods involves selection for only one trait at a time and is rather ineffective?
A. Selection index B. Independent culling level C. Tandem
To control the amount of metal buildup when performing flat fillet welds with FCAW, the welder should
_____. a. cool the practice coupon in water b. clean the weld with solvent c. increase or decrease the travel speed d. run the root pass with a 90-degree work angle
Most manufacturers recommend a GFCI splitter be tested using the test button ___________________.
A. before each use B. daily C. weekly D. every two weeks