NRRPT Exam Review Questions and Answers (Most Recent Version, Complete Study Material).

NRRPT Exam Review Questions and
Answers (Most Recent Version, Complete
Study Material)
define DAC - Correct Answers ✅Derived Air Concentration
- measure of radioactivity in air - μCi/mL
- isotope specific


List 2 nuclides that are produced by cosmogenic action -
Correct Answers ✅1. Tritium H3/1
2. Carbon C14/6


Which of the 4 decay series is an artificially produced decay
series - Correct Answers ✅Neptunium


Decay series - Correct Answers ✅Thorium - natural
Neptunium - artificial - starts with U235
Actinium - natural
Uranium - natural
Radium - natural


What is the most abundant nuclide in the earth's crust (on
average) - Correct Answers ✅Thorium


In an absorbing medium, one gray (100 rad) would produce: -
Correct Answers ✅1E4 ergs/g

, NRRPT Exam Review Questions and
Answers (Most Recent Version, Complete
Study Material)
Am241/95 has ? protons and ? neutrons - Correct Answers
✅95, 146


If an atom is assembled from its constituent parts (protons,
electrons, neutrons) the mass of the assembled atom is less
than the sum of the mass of the parts, largely because: -
Correct Answers ✅of the transformation of constituent
mass to binding energy


mass Σ#e- + #p+ + #n > Am241/95


Isotopes are defined as: - Correct Answers ✅forms of the
same element containing different numbers of neutrons
(Same Z#, different A#)


Pu238/94 has ? protons and ? neutrons - Correct Answers
✅94, 144


Write the generalized activity equation and define all the
parameters - Correct Answers ✅A=Aₒe^-λt


How is radioactive material defined? - Correct Answers ✅1.
half life
2. type of radiation
3. energy