What percent of particles can be removed with an absolute rating on a filter?
A. 50 percent
B. 58 percent
C. 85 percent
D. 99.9 percent
A. Incorrect. With an absolute rating, the filter is capable of removing 99.9 percent of the particles larger than a specified micron rating.
B. Incorrect. With an absolute rating, the filter is capable of removing 99.9 percent of the particles larger than a specified micron rating.
C. Incorrect. With an absolute rating, the filter is capable of removing 99.9 percent of the particles larger than a specified micron rating.
D. Correct. With an absolute rating, the filter is capable of removing 99.9 percent of the particles larger than a specified micron rating.
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A) Anticipating and preventing problems B) Collaborating with health physicists C) Supervising occupational health nurses D) Treating workplace injuries
The observed biological characteristics brought about by the environment and the genetic code is called the _____________
Fill in the blank(s) with correct word
Sediment pollution results in the loss of _____
a. grass c. fish and other aquatic life b. air d. humans
One technique for improving efficiency and comfort through compressor selection is to select a:
A) Compressor with capacity control to match the compressor capacity with the refrigeration load. B) Compressor that is designed for a colder evaporator temperature to achieve lower evaporator pressure and increased efficiency. C) Compressor with 25% greater capacity than the maximum anticipated refrigeration load. D) Compressor with a capacity equal to the minimum anticipated refrigeration load.