Which plate(s) require J-groove joint preparation based on the welding symbol shown in Figure 2?
a. Plate A
b. Plate B
c. Both plate A and B
b. Plate B
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Which of the following prefixes is used to express a millionth of any value?
A. milli B. micro C. nano D. pico
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Explain how a septic system works
What will be an ideal response?
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Coal is a product of the remains of ancient ____
a. marine organisms b. arthropods buried in swamps c. plants buried in swamps d. plants buried in marine sediments
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After aluminum coupons and backings have been properly cleaned and prepared, they should be welded
within _____. a. 1 hour b. 45 minutes c. 30 minutes d. 10 minutes
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