The refinish department must change its respirators’ pre-filters every 6 weeks. There are 13 employees using respirators. How many respirator pre-filters are needed per year?
What will be an ideal response?
112.58 [round to 113] pre-filters per year
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Define the following terms:
a. Breakthrough b. Desiccant c. Filter aid d. Micron
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Explain how photoperiod can control flowering
What will be an ideal response?
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The output of an inverter is always equal to
A) 1 B) an inverted version of the input logic level C) 0 D) the input logic level
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Why should oxygen tank valves be fully opened when in use?
A. To provide sufficient oxygen pressure. B. To prevent inadvertently increasing oxygen after a flame is set. C. It will prolong the service life of the valves. D. Oxygen will leak past valve threads on a partially opened valve.
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