RADON EXAM PRACTICE QUESTIONS AND ANSWERS |100% PASS

RADON EXAM PRACTICE QUESTIONS AND ANSWERS |100% PASS Stack effect is caused by _____________________. - Answer️️ -Temperature Differentials The area above the neutral pressure plan in a home _________________. - Answer️️ -Forces air out of the home Radon entry, and therefore indoor radon concentrations, _______________________. - Answer️️ -Can vary over relatively short periods of time For radon to be transported into a home, __________________ must be present. - Answer️️ -A pathway for travel and a driving force for movement What is the relationship between ventilation rates and radon levels? - Answer️️ -There is NOT a strong correlation The area below the neutral pressure plane in a home __________________. - Answer️️ -Draws air into the home The driving force which most commonly brings radon into a home is ___________________. - Answer️️ -Air pressure differentials The three major factors of radon entry into a home are ___________________. - Answer️️ -Source strength, Transport, and ventilation The EPA estimates that the risk of lung cancer death for a current smoker with a constant radon exposure of 4 pCi/L is _______ in 1,000. - Answer️️ -62 ©SOPHIABENNETT EXAM SOLUTIONS_2024/2025 Tuesday, September 3, 2024 10:30 AM Page | 2 ______________ are the two radon decay products that contribute the largest dose of radiation associated with RDPs. - Answer️️ -Polonium 218 - Polonium 214 All of the following were findings of studies done on miners exposed to radon, EXCEPT____________________. - Answer️️ -most cases showed within six months exposure Ionizing radiation causes all of the following harmful effects - Answer️️ -breaking dna strands unbonding base pairs Interacting with molecules outside the cell, which can cause cellular damage The EPA estimates that the risk of lung cancer death for a never-smoker with a constant radon exposure of 4 pCi/L is _______ in 1,000. - Answer️️ -7 The EPA estimates that approximately _________ lung cancer deaths per year are related to inhalation of radon and radon decay products. - Answer️️ -21,000 The EPA's indoor air recommended action level for radon is ________________. - Answer️️ -4 pCi/L A room has a working level of 0.52 and a radon concentration level of 110 pCi/L. What is the room's equilibrium ratio? [The formula for ER is ER = (WL × 100) ÷ pCi/L] - Answer️️ -0.47 A room has a working level of 0.7 and a radon concentration of 104 pCi/L. What is the room's equilibrium ratio? [The formula for ER is ER = (WL × 100) ÷ pCi/L] - Answer️️ - 0.67 ©SOPHIABENNETT EXAM SOLUTIONS_2024/2025 Tuesday, September 3, 2024 10:30 AM Page | 3 A room has a working level of 0.2 and a radon concentration of 40 pCi/L. What is the room's equilibrium ratio? [The formula for ER is ER = (WL × 100) ÷ pCi/L] - Answer️️ - 0.5 You run two simultaneous radon measurements which return results of 8.1 and 8.4 pCi/L. What is their relative percent difference? [Remember that RPD = difference between results ÷ average of results × 100] - Answer️️ -3.6% You run two simultaneous radon measurements which return results of 6.7 and 9.3 pCi/L. What is their relative percent difference? [Remember that RPD = difference