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