NRPP Radon Measurements Exam|
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If a sample of radon is taken from a room that is known to be at 125pCi/L and is kept
in a well sealed container, what will the approximate radon activity be within the
container after eight days? - Answer✅✅31.3
Radon decay products have (or )longer shorter half lives than radon gas? -
Answer✅✅Shorter
The ionization of an otherwise electrically neutral atom is used in measuring
radiation. Which process best describes ionization? - Answer✅✅An uncharged
atom gains or loses orbital electrons ()and becomes electrically charged.
Give three characteristics of radon - Answer✅✅Half life of 3.8 days
Inert
Can't sense (see, smell, or taste)
Radioactive
Naturally occurring
Gas
, If a room within a home is determined to be at 25 pCi/L, what working level would
be expected in this room using typical assumptions for equilibrium ratio in
residential buildings? - Answer✅✅0.13
What is the highest working level that could be observed in a room having a
constant radon activity of 10 pCi/L ? - Answer✅✅0.1
f a radon measurement is calculated to be 7.8456 pCi/L, what number should be
written on the report to the client? - Answer✅✅7.8 pCi/L
A building has very high internal air circulation rate and was measured at 0.03WL.
What can be said about the radon concentrations? - Answer✅✅The radon is
probably more than 6 pCi/L.
What is the approximate outdoor radon concentration? - Answer✅✅0.4 pCi/L
Within the U.S, the EPA believes the average annual indoor radon activity to be: -
Answer✅✅1.3 pCi/L
What would be the expected working levels in a room at 4 pCi/L, using typical
assumptions for equilibrium ratio in residential buildings? - Answer✅✅0.02 WL
In order to calculate the equilibrium ratio in a home you need to know: -
Answer✅✅Results of simultaneous measurements of radon and radon decay
products.
Lung cancer risks exist with exposures to radon concentrations below 4pCi/L. -
Answer✅✅True
Short-term measurements can be factored by the time of deployment to determine
a year-long average. - Answer✅✅False
The results of a short-term, closed building test indicates the highest the radon
could ever be. - Answer✅✅False
Radon is only a concern in homes, not in schools and workplaces. - Answer✅✅False
When emitted within the lungs, which one of the three ionizing radiation types
causes the most cell damage within the lung? - Answer✅✅alpha particle
The health risk of radon has most strongly been determined by what studies? -
Answer✅✅Occupational exposures and lung cancer incidence in underground
miners Miner Studies
According to the most recent version of U.S. EPA's Home Buyer's and Seller's Guide,
what is the estimated number of cancer deaths that occur annually in the United
States from radon exposure in homes? - Answer✅✅15,000 - 22,000
Brand New Expert Exam Questions
with 100% Correct Clear Verified
Answers| All Graded A+|Latest
Premium Update|100%
Guaranteed Success.
If a sample of radon is taken from a room that is known to be at 125pCi/L and is kept
in a well sealed container, what will the approximate radon activity be within the
container after eight days? - Answer✅✅31.3
Radon decay products have (or )longer shorter half lives than radon gas? -
Answer✅✅Shorter
The ionization of an otherwise electrically neutral atom is used in measuring
radiation. Which process best describes ionization? - Answer✅✅An uncharged
atom gains or loses orbital electrons ()and becomes electrically charged.
Give three characteristics of radon - Answer✅✅Half life of 3.8 days
Inert
Can't sense (see, smell, or taste)
Radioactive
Naturally occurring
Gas
, If a room within a home is determined to be at 25 pCi/L, what working level would
be expected in this room using typical assumptions for equilibrium ratio in
residential buildings? - Answer✅✅0.13
What is the highest working level that could be observed in a room having a
constant radon activity of 10 pCi/L ? - Answer✅✅0.1
f a radon measurement is calculated to be 7.8456 pCi/L, what number should be
written on the report to the client? - Answer✅✅7.8 pCi/L
A building has very high internal air circulation rate and was measured at 0.03WL.
What can be said about the radon concentrations? - Answer✅✅The radon is
probably more than 6 pCi/L.
What is the approximate outdoor radon concentration? - Answer✅✅0.4 pCi/L
Within the U.S, the EPA believes the average annual indoor radon activity to be: -
Answer✅✅1.3 pCi/L
What would be the expected working levels in a room at 4 pCi/L, using typical
assumptions for equilibrium ratio in residential buildings? - Answer✅✅0.02 WL
In order to calculate the equilibrium ratio in a home you need to know: -
Answer✅✅Results of simultaneous measurements of radon and radon decay
products.
Lung cancer risks exist with exposures to radon concentrations below 4pCi/L. -
Answer✅✅True
Short-term measurements can be factored by the time of deployment to determine
a year-long average. - Answer✅✅False
The results of a short-term, closed building test indicates the highest the radon
could ever be. - Answer✅✅False
Radon is only a concern in homes, not in schools and workplaces. - Answer✅✅False
When emitted within the lungs, which one of the three ionizing radiation types
causes the most cell damage within the lung? - Answer✅✅alpha particle
The health risk of radon has most strongly been determined by what studies? -
Answer✅✅Occupational exposures and lung cancer incidence in underground
miners Miner Studies
According to the most recent version of U.S. EPA's Home Buyer's and Seller's Guide,
what is the estimated number of cancer deaths that occur annually in the United
States from radon exposure in homes? - Answer✅✅15,000 - 22,000
