The grooved lock seam is also known as a(n) _____.

a. Pittsburgh lock
b. acme, or pipe lock
c. drive connector
d. S-slip


b. acme, or pipe lock

Trades & Technology

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

1. The number of U.S. farms is on the order of 4 million at present. 2. The value of any index for the reference or base year is always 1. 3. U.S. farms tend to be diversified rather than specialized. 4. One out of every six jobs in the U.S. economy is tied to the food and fiber sector. 5. The share of the food dollar for food eaten at home is slightly more than 50%.

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Trench is the most common form of excavation in construction

Indicate whether the statement is true or false

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Workers’ compensation claims for MSDs and CTDs are fewer than generally thought by the public.