In accordance with ASHRAE Standard 170, general hospital Operating Rooms must have a minimum of two return grilles, one of which must be located:

• A.At breathing height
• B.Adjacent to the anesthetizing location
• C.As far away from the other as practical
• D.High, and the other low

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In accordance with ASHRAE Standard 170, what is the MINIMUM outdoor air change rate for a patient room in a nursing unit?

• A.2 ACH
• B.4 ACH
• C.6 ACH
• D.12 ACH

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After coming into direct contact with medical instruments in a sterilizer, where should clean steam condensate that has been tempered be directed to?

• A.Sterilizer make-up
• B.Steam system deaerator
• C.Waste drain system
• D.Clean steam generator

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How can negative air pressure BEST be maintained between the construction area and the occupied area of a hospital?

• A.Provide fans to exhaust air from the construction area to the outdoors
• B.Close supply air diffusers in the construction area
• C.Close return air grilles in the construction area
• D.Provide recirculating HEPA units throughout the construction area

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Which of the following represents the MINIMUM allowable area of non-aspirating diffuser required for a 400 sq. ft. (37.16 sq. m) Class C Operating Room with 1,267 CFM (598 L/s) air supply?

• A.25.3 sq. ft. (2.35 sq. m)
• B.36.2 sq. ft. (3.36 sq. m)
• C.50.7 sq. ft. (4.71 sq. m)
• D.84.5 sq. ft. (7.85 sq. m)

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