IRRSP PRACTICE EXAM QUESTIONS AND ANSWERS
GRADED A+
✔✔(FALSE)
Once an isotope has decayed, theoretically at some point the material would be
completely stable and thus not radioactive. this would be theoretical only as it would
never truly reach absolute zero. - ✔✔As a radioisotope decays, the elements return to a
stable state by undergoing several steps; once complete the material continues to
produce radiation (true or false)?
✔✔The half-life of iridium-192 is essentially 74.3 days, 148 days divided by 74.3 days,
148 days divided by 74.3 is basically 2 or 2 half-lives. - ✔✔after 148 days, Ir-192 would
have undergone how many half lives?
✔✔(excess neutrons)
By bombarding atoms with neutrons into the nucleus of an atom, thus making it
physically unstable and radioactive, this process is known as activation. - ✔✔Activation
is the process of bombarding material with?
✔✔(protons)
protons define the type of element theater is. - ✔✔the total number of _______
identifies an element is?
✔✔( more penetrating )
Higher frequency means a shorter wavelength. the shorter the wavelength the greater
the penetration. - ✔✔Gamma radiation has a shorter wavelength than visible light,
therefore making it?
✔✔-Cancer
-Genetic defects carried into further generations
-Death
overexposure to ionizing radiation can cause everything from reddening of the skin to
death, including cancer and genetic damage to DNA that would be passed on to unborn
children. - ✔✔overexposures to personnel can result in ?
✔✔Unrestricted Area: 2mr/hr - ✔✔Unrestricted Area is___mr/hr?
✔✔5 mr/hr - ✔✔Radiation area: __ mr/hr?
✔✔High radiation area: 100 mr/hr - ✔✔High radiation area:_____ mr/hr?
✔✔RT Barriers/Areas must be out put out at all times be. - ✔✔Need barriers/signs at all
areas.?
, ✔✔for radiation workers to be aware of the hazards and protect themselves. - ✔✔What
is the main purpose of ALARA?
✔✔Roentgen (R) - ionization of air - Radiation intensity - ✔✔Units of measurement
Radiation Exposure =?
✔✔Curie (Ci) / Becquerel (Bq or GBq) - ✔✔Units of measurement Radiation activity =?
✔✔Rad / Gray (Gy) - ✔✔Units of measurement Absorbed dose =?
✔✔(Sievert) - radiation damage in living tissue? - ✔✔Dose Equivalent = Rem (roentgen
equivalent man) / Sv?
✔✔Cancer
Genetic defects carried into further generations
death - ✔✔overexposure to personnel can result in ?
✔✔(false)
as radiation encompasses everything from radio waves to cosmic waves, it is obvious
that some forms of radiation do not damage the human body, let alone cause death. -
✔✔all radiation exposures are equally serious and can result in death? (true or false )
✔✔Registration of any X-ray machine is required . - ✔✔The use of industrial X-ray
machines is generally under state jurisdiction. A license is not normally issued but ?
✔✔United States nuclear regulatory commission - ✔✔U.S.N.R.C.
✔✔Title 10 of the code of federal regulations (CFR), Chapter 1. Of particular interest are
parts 19,20,and 34. - ✔✔The rules and regulations are under title?
✔✔( NUCLEUS )
Which has a positive electrical charge. - ✔✔the atom as a center mass called the ?
✔✔(an X ray) having an energy level based on the energy level of the orbital location of
the expelled electron -the binding energy. the X ray photon emitted is characterized by
this orbiting electron ionization, and is referred to as a characteristic X-ray photon. -
✔✔the liberation of the electron (ionization) result in the emission of ?
✔✔bombardment of the atom with a stream of fast-moving electrons. this condition is
created inside an X-ray tube by accelerating electrons from the cathode of the tube to
the anode. - ✔✔The process of ionizing an atom comes about through the ?
GRADED A+
✔✔(FALSE)
Once an isotope has decayed, theoretically at some point the material would be
completely stable and thus not radioactive. this would be theoretical only as it would
never truly reach absolute zero. - ✔✔As a radioisotope decays, the elements return to a
stable state by undergoing several steps; once complete the material continues to
produce radiation (true or false)?
✔✔The half-life of iridium-192 is essentially 74.3 days, 148 days divided by 74.3 days,
148 days divided by 74.3 is basically 2 or 2 half-lives. - ✔✔after 148 days, Ir-192 would
have undergone how many half lives?
✔✔(excess neutrons)
By bombarding atoms with neutrons into the nucleus of an atom, thus making it
physically unstable and radioactive, this process is known as activation. - ✔✔Activation
is the process of bombarding material with?
✔✔(protons)
protons define the type of element theater is. - ✔✔the total number of _______
identifies an element is?
✔✔( more penetrating )
Higher frequency means a shorter wavelength. the shorter the wavelength the greater
the penetration. - ✔✔Gamma radiation has a shorter wavelength than visible light,
therefore making it?
✔✔-Cancer
-Genetic defects carried into further generations
-Death
overexposure to ionizing radiation can cause everything from reddening of the skin to
death, including cancer and genetic damage to DNA that would be passed on to unborn
children. - ✔✔overexposures to personnel can result in ?
✔✔Unrestricted Area: 2mr/hr - ✔✔Unrestricted Area is___mr/hr?
✔✔5 mr/hr - ✔✔Radiation area: __ mr/hr?
✔✔High radiation area: 100 mr/hr - ✔✔High radiation area:_____ mr/hr?
✔✔RT Barriers/Areas must be out put out at all times be. - ✔✔Need barriers/signs at all
areas.?
, ✔✔for radiation workers to be aware of the hazards and protect themselves. - ✔✔What
is the main purpose of ALARA?
✔✔Roentgen (R) - ionization of air - Radiation intensity - ✔✔Units of measurement
Radiation Exposure =?
✔✔Curie (Ci) / Becquerel (Bq or GBq) - ✔✔Units of measurement Radiation activity =?
✔✔Rad / Gray (Gy) - ✔✔Units of measurement Absorbed dose =?
✔✔(Sievert) - radiation damage in living tissue? - ✔✔Dose Equivalent = Rem (roentgen
equivalent man) / Sv?
✔✔Cancer
Genetic defects carried into further generations
death - ✔✔overexposure to personnel can result in ?
✔✔(false)
as radiation encompasses everything from radio waves to cosmic waves, it is obvious
that some forms of radiation do not damage the human body, let alone cause death. -
✔✔all radiation exposures are equally serious and can result in death? (true or false )
✔✔Registration of any X-ray machine is required . - ✔✔The use of industrial X-ray
machines is generally under state jurisdiction. A license is not normally issued but ?
✔✔United States nuclear regulatory commission - ✔✔U.S.N.R.C.
✔✔Title 10 of the code of federal regulations (CFR), Chapter 1. Of particular interest are
parts 19,20,and 34. - ✔✔The rules and regulations are under title?
✔✔( NUCLEUS )
Which has a positive electrical charge. - ✔✔the atom as a center mass called the ?
✔✔(an X ray) having an energy level based on the energy level of the orbital location of
the expelled electron -the binding energy. the X ray photon emitted is characterized by
this orbiting electron ionization, and is referred to as a characteristic X-ray photon. -
✔✔the liberation of the electron (ionization) result in the emission of ?
✔✔bombardment of the atom with a stream of fast-moving electrons. this condition is
created inside an X-ray tube by accelerating electrons from the cathode of the tube to
the anode. - ✔✔The process of ionizing an atom comes about through the ?
