A technician recovered 221⁄2 pounds of refrigerant R-12 for disposal by emptying5⁄6 of a pound of R-12 from each of a number of portable dehumidifier units. Howmany dehumidifier units did the technician empty?

A technician recovered 221⁄2 pounds of refrigerant R-12 for disposal by emptying5⁄6 of a pound of R-12 from each of a number of portable dehumidifier units. Howmany dehumidifier units did the technician empty?

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter2: Municipal Solid Waste Characteristics And Quantities

Section: Chapter Questions

Problem 2.1P

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Concept explainers

Collection Systems

The collection systems form a part of sanitary engineering, which is a sub-branch of civil engineering. It is also known as public health engineering and wastewater engineering. It is a methodology followed to remove and properly dispose of human waste, along with creating systems to provide safe and clean usable water. These measures ensure a hygienic and disease-free community. Sanitary engineering, apart from building sewer disposal units, is also involved in plumbing, fire protection, hydraulics, life safety, environmental protection, information technology, microbiology, pathology, and so on.

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A technician recovered 221⁄2 pounds of refrigerant R-12 for disposal by emptying
5⁄6 of a pound of R-12 from each of a number of portable dehumidifier units. How
many dehumidifier units did the technician empty?

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