Radon Practice Exam Frequently Tested Questions and Answers with complete solution

Radon Practice Exam Frequently Tested Questions and Answers with complete solution If you own multiple continuous Radon monitors, at what frequency should a source check take place? 6 months Radon gas will pass through most filters. True The basic parts of an atom are: neutron, proton, electron What passive device is most adversely affected by humidity? Open Faced Charcoal The EPA says that most homes can be reduced to 2.0 pCi/l or less. True Detectors should be placed 1. ___________ inch/inches from the floor 2. ___________ foot/feet from an exterior wall 3.____________ foot/feet from the ceiling 4.____________ foot/feet from an exterior opening 5. No more than ____________ foot/feet off the floor 20 1 1 3 8 According to national measurement protocols, enclosed bathrooms, kitchens, and garages are acceptable places to test in a pinch. False What is the average annual Radon concentration in homes in the U.S., according to the EPA? 1.3 What is a Curie? Radioactive decays from one gram of Radium A crawlspace would most likely see a reduction in radon levels above from which type of mitigation technique? sub membrane depressurization Depressurizing drain tile found beneath a basement slab can be an effective mitigation technique? True, as long as it does not represent a short circuit or hinder water drainage What typically causes the greatest amount of radon entry into U.S. homes annually? stack effect In most cases, a long term test gives a better indication of the annual average. True What type of quality control test is used to check and evaluate the accuracy of passive measurement devices? spiked measurements Electret Ion Chambers measure Radon levels from what?