Generic Radiation Worker Training
Supplemental Worker Cert- FINAL EXAM
STUDY GUIDE 2025/2026 COMPLETE
QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS RECENT VERSION
What is the smallest part of an element that retains the characteristics of the element? It
is the building block of all matter. -ANSWER✅✅✅Atom
What 3 parts does an atom consist of? -ANSWER✅✅✅Protons, nuetrons, Electrons
The center of an atom -ANSWER✅✅✅nucleus
Found in the nucleus of the atom (center) and has a positive (+) charge. -
ANSWER✅✅✅Protons
Found in the Nucleus (center) of the atom and it has no charge. -
ANSWER✅✅✅Nuetrons
Orbits around the nucleus of the atom and has a negative (-) charge -
ANSWER✅✅✅Electrons
An atom that has excess energy is called what? -ANSWER✅✅✅A radioactive atom
The process that an atom goes through to become stable is called what? -
ANSWER✅✅✅Radioactive decay
A large collection of radioactive atoms is called what? -ANSWER✅✅✅Radioactive
Material
Energy or tiny particles from radioactive materials that can harm living tissue by
changing its chemical or physical structure are called what? -ANSWER✅✅✅Ionizing
Radiation
, When radioactive material is somewhere it's not supposed to be ( or is not wanted) it is
called what? -ANSWER✅✅✅Radioactive contamination
A burst of energy as either particles or waves, given off by a radioactive atom during the
radioactive decay process. -ANSWER✅✅✅Radiation
What happens to an atom at the end of the radioactive decay process? -
ANSWER✅✅✅It releases all excess energy and becomes stable (no longer
radioactive).
What's the difference between radioactive material and radioactive contamination? -
ANSWER✅✅✅If it's where it belongs (like inside a pipe), it's just radioactive material. If
it's somewhere unwanted (like on your shoe), it's contamination.
True or False: Does radioactive material give off radiation no matter where it is? -
ANSWER✅✅✅True
What are the 5 sources of radiation in the plant? -ANSWER✅✅✅1. Reactor Fuel
2. Reactor Coolant
3. Activated Corrosion Products
4. Plant Components
5. Reactor Operations
When a larger atom is split into two or more smaller atoms, this is called what? -
ANSWER✅✅✅Fission
The radioactive atoms that result from fissioning are called what? -
ANSWER✅✅✅Fission Products
What is created during the fission process? -ANSWER✅✅✅Radiation and heat
The bits of debris and corrosion that become radioactive as they go through the reactor
are called what? -ANSWER✅✅✅Activation products
What are the four types of radiation? -ANSWER✅✅✅Alpha, Beta, Gamma, Neutron
What type of radiation is this?
Penetration ability—low
Shielding methods—any thin material such as paper or clothing.
Exposure hazard—only a hazard when the radioactive material is inhaled or ingested.
Where found: can be found in any radioactive material in a plant. Activities that disturb
the radioactive materials are likely to cause emitters to get into the air and be inhaled or
ingested by workers. -ANSWER✅✅✅Alpha
What type of radiation is this?
Supplemental Worker Cert- FINAL EXAM
STUDY GUIDE 2025/2026 COMPLETE
QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS RECENT VERSION
What is the smallest part of an element that retains the characteristics of the element? It
is the building block of all matter. -ANSWER✅✅✅Atom
What 3 parts does an atom consist of? -ANSWER✅✅✅Protons, nuetrons, Electrons
The center of an atom -ANSWER✅✅✅nucleus
Found in the nucleus of the atom (center) and has a positive (+) charge. -
ANSWER✅✅✅Protons
Found in the Nucleus (center) of the atom and it has no charge. -
ANSWER✅✅✅Nuetrons
Orbits around the nucleus of the atom and has a negative (-) charge -
ANSWER✅✅✅Electrons
An atom that has excess energy is called what? -ANSWER✅✅✅A radioactive atom
The process that an atom goes through to become stable is called what? -
ANSWER✅✅✅Radioactive decay
A large collection of radioactive atoms is called what? -ANSWER✅✅✅Radioactive
Material
Energy or tiny particles from radioactive materials that can harm living tissue by
changing its chemical or physical structure are called what? -ANSWER✅✅✅Ionizing
Radiation
, When radioactive material is somewhere it's not supposed to be ( or is not wanted) it is
called what? -ANSWER✅✅✅Radioactive contamination
A burst of energy as either particles or waves, given off by a radioactive atom during the
radioactive decay process. -ANSWER✅✅✅Radiation
What happens to an atom at the end of the radioactive decay process? -
ANSWER✅✅✅It releases all excess energy and becomes stable (no longer
radioactive).
What's the difference between radioactive material and radioactive contamination? -
ANSWER✅✅✅If it's where it belongs (like inside a pipe), it's just radioactive material. If
it's somewhere unwanted (like on your shoe), it's contamination.
True or False: Does radioactive material give off radiation no matter where it is? -
ANSWER✅✅✅True
What are the 5 sources of radiation in the plant? -ANSWER✅✅✅1. Reactor Fuel
2. Reactor Coolant
3. Activated Corrosion Products
4. Plant Components
5. Reactor Operations
When a larger atom is split into two or more smaller atoms, this is called what? -
ANSWER✅✅✅Fission
The radioactive atoms that result from fissioning are called what? -
ANSWER✅✅✅Fission Products
What is created during the fission process? -ANSWER✅✅✅Radiation and heat
The bits of debris and corrosion that become radioactive as they go through the reactor
are called what? -ANSWER✅✅✅Activation products
What are the four types of radiation? -ANSWER✅✅✅Alpha, Beta, Gamma, Neutron
What type of radiation is this?
Penetration ability—low
Shielding methods—any thin material such as paper or clothing.
Exposure hazard—only a hazard when the radioactive material is inhaled or ingested.
Where found: can be found in any radioactive material in a plant. Activities that disturb
the radioactive materials are likely to cause emitters to get into the air and be inhaled or
ingested by workers. -ANSWER✅✅✅Alpha
What type of radiation is this?
