In 1870, the U.S. Environmental Protection Agency (EPA) established standards for air and water quality.
Answer the following statement true (T) or false (F)
False
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All dimensions using Feature Control Frames are in ____________________ fractions.
Fill in the blank(s) with the appropriate word(s).
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Chilled water systems use a primary refrigerant to remove heat from a secondary refrigerant in a chiller unit. What is the secondary refrigerant in such systems?
A) R-22 B) Water C) R-134A D) Ammonia
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How many binary digits are required to count to decimal 100?
A) 3 B) 100 C) 7 D) 2
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When preparing a steam boiler for wet storage, the boiler is _____
a. valved off from the remainder of the system b. filled with treated water below its normal water line c. filled with treated water to its normal water line d. valved open to the remainder of the system
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