RADON TEST - QUIZ QUESTIONS AND
ANSWERS
Which of the following are characteristics of Radon?
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a. Has no static charge, solid particle, does not react chemically
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b. Is a gas, radioactive, can be detected by human senses
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c. Is manmade, does not chemically react, is a gas
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d. Is not detected by human senses, is naturally occurring, does not chemically react
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- ANSWERS-
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d. Is not detected by human senses, is naturally occurring, does not chemically react
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The nucleus of an atom consists of
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a. electrons and protons
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b. neutrons and electrons
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c. protons and neutrons
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d. protons, neutrons, and electrons - ANSWERS-c. protons and neutrons
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The characteristic of an atom that determines which element it is
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a. number of electrons
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b. number of neutrons
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c. number of protons
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d. number of protons and neutrons - ANSWERS-c. number of protons
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The annual average of outdoor and indoor Radon levels are
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a. 0.4 pCi/L outdoors; 1.3 pCi/L indoors
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b. 0.5 pCi/L outdoors; 4.0 pCi/L indoors
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c. 0.6 pCi/L outdoors; 4.0 pCi/L indoors
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d. 0.7 pCi/L outdoors; 1.3 pCi/L indoors - ANSWERS-
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a. 0.4 pCi/L outdoors; 1.3 pCi/L indoors
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An ion is an atom that
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a. cannot accept additional electrons
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b. cannot eliminate additional electrons
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c. has lost or gained electrons
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d. has no electrons - ANSWERS-c. has lost or gained electrons
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One picocurie per liter of Radon is defined as
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a. one billionth of a curie
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b. 2.22 disintegrations per minute per gram of air
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c. 2.22 disintegrations per minute within a liter of air
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d. 37 billion disintegrations per second - ANSWERS-
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c. 2.22 disintegrations per minute within a liter of air
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,It takes ________ hours for Radon to reach secular equilibrium with its short lived de
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cay products.
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a. 4 hours
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b. 12 hours
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c. 24 hours
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d. 48 hours - ANSWERS-a. 4 hours
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If the Radon concentration is 8 pCi/
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L what is the working level of Radon Decay Products using common assumptions of
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equilibrium?
a. 0.02 WL
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b. 0.04 WL
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c. 0.50 WL
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d. 1.00 WL - ANSWERS-b. 0.04 WL
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If the Working Level concentration is 0.03 WL, using common assumptions of equilibr
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ium what is the Radon concentration in the room?
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a. 0.5 pCi/L
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b. 2.0 pCi/L
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c. 4.0 pCi/L
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d. 6.0 pCi/L - ANSWERS-d. 6.0 pCi/L
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If the Working Level concentration is 0.06 and the Radon concentration is 10 pCi/
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L, what is the equilibrium ratio?
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a. 0.4fx
b. 0.6fx
c. 1.0
fx
d. 4.0 - ANSWERS-b. 0.6
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Which of the following is an incorrect statement?
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a. Radon 222 is a radioactive gas.
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b. Radon 222 is a product of radium.
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c. Radon 222 is an inert gas.
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d. Radon 222, once formed, disappears in 3.8 days. - ANSWERS-
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d. Radon 222, once formed, disappeared in 3.8 days.
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Which of the following is not necessarily a correct statement?
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a. A measurement of 0.02 WL of RDP means 4 pCi/L of Radon exists in the room.
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b. One picocurie is one trillionth of a curie.
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c. One pCi/L is equal to 2.22 disintegrations in a liter of air in a minute.
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d. WL is defined as the alpha energy released from RDP. - ANSWERS-
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a. A measurement of 0.02 WL of RDP means 4 pCi/L of Radon exists in the room.
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, Working Level is a measure of fx fx fx fx fx fx
a. a location of work within a uranium mine
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b. a measure of the amount of radiation produced by the Radon Decay products.
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c. a time dose measure of the exposure to radon decay products
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d. a measure of the amount of radiation produced by radon gas. - ANSWERS-
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b. a measure of the amount of radiation produced by the radon decay products.
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100 pCi/ fx
L of radon is inside a radon proof container, if the container is remeasured in 11 days.
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Approximately how much radon is left left in the container?
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a. 13 pCi/L
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b. 25pCi/Lfx
c. 50pCi/Lfx
d. 75 pCi/L - ANSWERS-a. 13 pCi/L
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Which of the following radon progeny groups produce the alpha radiation representin
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g the greatest health concern associated with radon?
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a. bismuth 214 lead 210
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b. bismuth 214 lead 214
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c. lead 210 lead 214
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d. polonium 214 polonium 218 - ANSWERS-d. polonium 214 polonium 218
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Which of the following types of radiation deliver the most amount of energy per single
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impact to living tissue?
x fx fx fx
a. alpha radiation
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b. beta radiation
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c. gamma radiation
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d. lead 210 deposition - ANSWERS-a. alpha radiation
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An alpha particle is composed of
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a. 1 proton 1 electron
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b. 1 proton 1 neutron
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c. 2 protons 2 electrons
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d. 2 protons 2 neutrons - ANSWERS-d. 2 protons 2 neutrons
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An equilibrium ratio of .5 is typically used when converting from WL measurements to
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pCi/L what does this mean?
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a. of the radon decay products produced from the radon in the room 25% are attache
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d to the walls and the other 25% are attached to suspended particles in the room.
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b. of the radon decay products that were produced from the radon in the room only ha
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lf are measurable.
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c. only 50% of the alpha energy of radon is being detached by the WL measurement
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device.
ANSWERS
Which of the following are characteristics of Radon?
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a. Has no static charge, solid particle, does not react chemically
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b. Is a gas, radioactive, can be detected by human senses
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c. Is manmade, does not chemically react, is a gas
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d. Is not detected by human senses, is naturally occurring, does not chemically react
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- ANSWERS-
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d. Is not detected by human senses, is naturally occurring, does not chemically react
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The nucleus of an atom consists of
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a. electrons and protons
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b. neutrons and electrons
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c. protons and neutrons
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d. protons, neutrons, and electrons - ANSWERS-c. protons and neutrons
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The characteristic of an atom that determines which element it is
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a. number of electrons
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b. number of neutrons
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c. number of protons
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d. number of protons and neutrons - ANSWERS-c. number of protons
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The annual average of outdoor and indoor Radon levels are
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a. 0.4 pCi/L outdoors; 1.3 pCi/L indoors
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b. 0.5 pCi/L outdoors; 4.0 pCi/L indoors
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c. 0.6 pCi/L outdoors; 4.0 pCi/L indoors
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d. 0.7 pCi/L outdoors; 1.3 pCi/L indoors - ANSWERS-
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a. 0.4 pCi/L outdoors; 1.3 pCi/L indoors
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An ion is an atom that
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a. cannot accept additional electrons
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b. cannot eliminate additional electrons
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c. has lost or gained electrons
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d. has no electrons - ANSWERS-c. has lost or gained electrons
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One picocurie per liter of Radon is defined as
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a. one billionth of a curie
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b. 2.22 disintegrations per minute per gram of air
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c. 2.22 disintegrations per minute within a liter of air
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d. 37 billion disintegrations per second - ANSWERS-
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c. 2.22 disintegrations per minute within a liter of air
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,It takes ________ hours for Radon to reach secular equilibrium with its short lived de
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cay products.
fx
a. 4 hours
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b. 12 hours
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c. 24 hours
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d. 48 hours - ANSWERS-a. 4 hours
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If the Radon concentration is 8 pCi/
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L what is the working level of Radon Decay Products using common assumptions of
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equilibrium?
a. 0.02 WL
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b. 0.04 WL
fx fx
c. 0.50 WL
fx fx
d. 1.00 WL - ANSWERS-b. 0.04 WL
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If the Working Level concentration is 0.03 WL, using common assumptions of equilibr
fx fx fx fx fx fx fx fx fx fx fx fx
ium what is the Radon concentration in the room?
fx fx fx fx fx fx fx fx
a. 0.5 pCi/L
fx fx
b. 2.0 pCi/L
fx fx
c. 4.0 pCi/L
fx fx
d. 6.0 pCi/L - ANSWERS-d. 6.0 pCi/L
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If the Working Level concentration is 0.06 and the Radon concentration is 10 pCi/
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L, what is the equilibrium ratio?
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a. 0.4fx
b. 0.6fx
c. 1.0
fx
d. 4.0 - ANSWERS-b. 0.6
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Which of the following is an incorrect statement?
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a. Radon 222 is a radioactive gas.
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b. Radon 222 is a product of radium.
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c. Radon 222 is an inert gas.
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d. Radon 222, once formed, disappears in 3.8 days. - ANSWERS-
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d. Radon 222, once formed, disappeared in 3.8 days.
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Which of the following is not necessarily a correct statement?
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a. A measurement of 0.02 WL of RDP means 4 pCi/L of Radon exists in the room.
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b. One picocurie is one trillionth of a curie.
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c. One pCi/L is equal to 2.22 disintegrations in a liter of air in a minute.
fx fx fx fx fx fx fx fx fx fx fx fx fx fx fx
d. WL is defined as the alpha energy released from RDP. - ANSWERS-
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a. A measurement of 0.02 WL of RDP means 4 pCi/L of Radon exists in the room.
fx fx fx fx fx fx fx fx fx fx fx fx fx fx fx fx
, Working Level is a measure of fx fx fx fx fx fx
a. a location of work within a uranium mine
fx fx fx fx fx fx fx fx
b. a measure of the amount of radiation produced by the Radon Decay products.
fx fx fx fx fx fx fx fx fx fx fx fx fx
c. a time dose measure of the exposure to radon decay products
fx fx fx fx fx fx fx fx fx fx fx
d. a measure of the amount of radiation produced by radon gas. - ANSWERS-
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b. a measure of the amount of radiation produced by the radon decay products.
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100 pCi/ fx
L of radon is inside a radon proof container, if the container is remeasured in 11 days.
fx fx fx fx fx fx fx fx fx fx fx fx fx fx fx fx
Approximately how much radon is left left in the container?
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a. 13 pCi/L
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b. 25pCi/Lfx
c. 50pCi/Lfx
d. 75 pCi/L - ANSWERS-a. 13 pCi/L
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Which of the following radon progeny groups produce the alpha radiation representin
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g the greatest health concern associated with radon?
fx fx fx fx fx fx fx
a. bismuth 214 lead 210
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b. bismuth 214 lead 214
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c. lead 210 lead 214
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d. polonium 214 polonium 218 - ANSWERS-d. polonium 214 polonium 218
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Which of the following types of radiation deliver the most amount of energy per single
fx fx fx fx fx fx fx fx fx fx fx fx fx fx f
impact to living tissue?
x fx fx fx
a. alpha radiation
fx fx
b. beta radiation
fx fx
c. gamma radiation
fx fx
d. lead 210 deposition - ANSWERS-a. alpha radiation
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An alpha particle is composed of
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a. 1 proton 1 electron
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b. 1 proton 1 neutron
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c. 2 protons 2 electrons
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d. 2 protons 2 neutrons - ANSWERS-d. 2 protons 2 neutrons
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An equilibrium ratio of .5 is typically used when converting from WL measurements to
fx fx fx fx fx fx fx fx fx fx fx fx fx f
pCi/L what does this mean?
x fx fx fx fx
a. of the radon decay products produced from the radon in the room 25% are attache
fx fx fx fx fx fx fx fx fx fx fx fx fx fx fx
d to the walls and the other 25% are attached to suspended particles in the room.
fx fx fx fx fx fx fx fx fx fx fx fx fx fx fx
b. of the radon decay products that were produced from the radon in the room only ha
fx fx fx fx fx fx fx fx fx fx fx fx fx fx fx fx
lf are measurable.
fx fx
c. only 50% of the alpha energy of radon is being detached by the WL measurement
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device.
