DOE Core (RCT) Practice Exam Questions
And Answers |Latest 2025 | Guaranteed Pass
Atomic Mass
The actual weight of a particular isotope in AMU
The atomic number is the number of:
Protons in the nucleus
The periodic table of the elements lists all known elements in order of:
Increasing atomic number
An action on an object that could cause the object to change speed or direction is identified
as:
Force
The Law of Conservation of Energy states that the:
Total amount of energy in a closed system remains unchanged
When the nucleons are combined to form a nucleus, some of the mass is:
Converted to binding energy
The equation E = mc² states that:
Mass and energy are equivalent
When two or more light nuclei combine to form a large nucleus in fusion, this changes the:
Binding energy
Isotopes are defined as nuclides with the same:
Number of protons but a different number of neutrons
The average dose to the general population of the US from medical exposures is
approximately:
53 mRem/year
The average dose to the general population of the US from consumer products is
approximately:
10 mRem/year
, The factor contributing the greatest variability in cosmic background radiation dose is:
Altitude
Alpha radiation is defined as:
A heavy particle with a mass of 4 amu and a charge of +2 that is emitted from the nucleus
Rad:
A unit of absorbed dose
Half-life:
The time required for half of the original number of nuclei to disintegrate
Exposure:
The ionization caused by x-ray and gamma radiation in air
Most fission products are unstable because the ratio of:
Neutrons to protons is too high (n:p)
Curie:
The activity of that quantity of radioactive material in which 37 billion atoms decay per
second
The rate of decay, type, and energy of decay are unique for:
Each radionuclide
If a nuclide is found to be radioactive and not man-made, it is:
Naturally radioactive
Identify one aspect associated with radioactive decay that best identifies a radionuclide:
Rate of decay
Alpha particle:
A heavy particle with 2 protons and 2 neutrons, charge of +2
Beta particle causing an electron to move to a higher energy state without ionization:
Excitation mechanism of energy transfer
Alpha particle causing electron removal and charged particle creation:
Ionization mechanism of energy transfer
Which of the following is a direct result of a neutron capture?
Elastic scattering
Correct answer: Gamma emission or radioactive decay
(Elastic scattering is not a result of neutron capture)
And Answers |Latest 2025 | Guaranteed Pass
Atomic Mass
The actual weight of a particular isotope in AMU
The atomic number is the number of:
Protons in the nucleus
The periodic table of the elements lists all known elements in order of:
Increasing atomic number
An action on an object that could cause the object to change speed or direction is identified
as:
Force
The Law of Conservation of Energy states that the:
Total amount of energy in a closed system remains unchanged
When the nucleons are combined to form a nucleus, some of the mass is:
Converted to binding energy
The equation E = mc² states that:
Mass and energy are equivalent
When two or more light nuclei combine to form a large nucleus in fusion, this changes the:
Binding energy
Isotopes are defined as nuclides with the same:
Number of protons but a different number of neutrons
The average dose to the general population of the US from medical exposures is
approximately:
53 mRem/year
The average dose to the general population of the US from consumer products is
approximately:
10 mRem/year
, The factor contributing the greatest variability in cosmic background radiation dose is:
Altitude
Alpha radiation is defined as:
A heavy particle with a mass of 4 amu and a charge of +2 that is emitted from the nucleus
Rad:
A unit of absorbed dose
Half-life:
The time required for half of the original number of nuclei to disintegrate
Exposure:
The ionization caused by x-ray and gamma radiation in air
Most fission products are unstable because the ratio of:
Neutrons to protons is too high (n:p)
Curie:
The activity of that quantity of radioactive material in which 37 billion atoms decay per
second
The rate of decay, type, and energy of decay are unique for:
Each radionuclide
If a nuclide is found to be radioactive and not man-made, it is:
Naturally radioactive
Identify one aspect associated with radioactive decay that best identifies a radionuclide:
Rate of decay
Alpha particle:
A heavy particle with 2 protons and 2 neutrons, charge of +2
Beta particle causing an electron to move to a higher energy state without ionization:
Excitation mechanism of energy transfer
Alpha particle causing electron removal and charged particle creation:
Ionization mechanism of energy transfer
Which of the following is a direct result of a neutron capture?
Elastic scattering
Correct answer: Gamma emission or radioactive decay
(Elastic scattering is not a result of neutron capture)
