MDCB Review Exam Questions With
100% Verified Answers
Compton Scattering results in the ejection of an electron and....
A: A scattered Photon with a longer wavelength than the incident
Photon
B: A scattered Photon with a shorter wavelength than the incident
Photon
C: A scattered Photon with the same wavelength as an incident
Photon
D: An equal sharing of the Photon energy by the electron and recoil
nucleus
E: None of the above -
correct answer ✅A: A scattered Photon with a longer wavelength
than the incident Photon
Which is not true about pair production?
A: The threshold energy is 1.02 MeV
B: An electron and positron are created
C: An example of energy mass conversion
D: Two photons are created
E: None of the above -
correct answer ✅D: Two photons are created
,MDCB Review Exam Questions With
100% Verified Answers
Which of these statements is not true about positrons?
A: They annihilate when combined with electrons
B: They result from a pair production interaction
C: Their properties are identical to electrons except for their charge
D: After annihilation two 510 keV
E: None of the above -
correct answer ✅D: After annihilation two 510 keV
When tissue is oxygenated:
A: A higher dose is required for a given effect
B: DNA becomes radiation resistant
C: Cell death is less likely
D: More free radicals are formed -
correct answer ✅D: More free radicals are formed
The unit of absorbed dose is the:
A: Rem/sievert
B: Rad/gray
C: roentgen
,MDCB Review Exam Questions With
100% Verified Answers
D: curie/becquerel -
correct answer ✅B: Rad/gray
The accumulated dose limit (DL) for a technologist who is 26 years
old is:
A: 16 mSv
B: 400 mSv
C: 260 mSv
D: 80 mSv -
correct answer ✅C: 260 mSv
Age x 10
Board only looks for sieverts
Which of the following units is used when expressing Ionization in
air?
A: Rad
B: roentgen
C: sievert
D: gray
E: becquerel -
correct answer ✅B: roentgen
, MDCB Review Exam Questions With
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Alpha particles are:
A: Composed of two protons and two neutrons
B: Are equivalent to a helium nuclei
C: Have a high linear energy transfer
D: All of the above -
correct answer ✅D: All of the above
The average energy deposited per unit path length to a medium by
ionizing radiation as it passes through that medium best describes:
A: Linear energy transfer (LET)
B: Radiation absorbed dose (Rad)
C: Radiation equivalent man (Rem)
D: Tissue absorbed dose (TAR) -
correct answer ✅A: linear energy transfer (LET)
Should you increase your distance from the source to three times
the original, your exposure would become:
A: 9 Times the original
B: 2 times the original
100% Verified Answers
Compton Scattering results in the ejection of an electron and....
A: A scattered Photon with a longer wavelength than the incident
Photon
B: A scattered Photon with a shorter wavelength than the incident
Photon
C: A scattered Photon with the same wavelength as an incident
Photon
D: An equal sharing of the Photon energy by the electron and recoil
nucleus
E: None of the above -
correct answer ✅A: A scattered Photon with a longer wavelength
than the incident Photon
Which is not true about pair production?
A: The threshold energy is 1.02 MeV
B: An electron and positron are created
C: An example of energy mass conversion
D: Two photons are created
E: None of the above -
correct answer ✅D: Two photons are created
,MDCB Review Exam Questions With
100% Verified Answers
Which of these statements is not true about positrons?
A: They annihilate when combined with electrons
B: They result from a pair production interaction
C: Their properties are identical to electrons except for their charge
D: After annihilation two 510 keV
E: None of the above -
correct answer ✅D: After annihilation two 510 keV
When tissue is oxygenated:
A: A higher dose is required for a given effect
B: DNA becomes radiation resistant
C: Cell death is less likely
D: More free radicals are formed -
correct answer ✅D: More free radicals are formed
The unit of absorbed dose is the:
A: Rem/sievert
B: Rad/gray
C: roentgen
,MDCB Review Exam Questions With
100% Verified Answers
D: curie/becquerel -
correct answer ✅B: Rad/gray
The accumulated dose limit (DL) for a technologist who is 26 years
old is:
A: 16 mSv
B: 400 mSv
C: 260 mSv
D: 80 mSv -
correct answer ✅C: 260 mSv
Age x 10
Board only looks for sieverts
Which of the following units is used when expressing Ionization in
air?
A: Rad
B: roentgen
C: sievert
D: gray
E: becquerel -
correct answer ✅B: roentgen
, MDCB Review Exam Questions With
100% Verified Answers
Alpha particles are:
A: Composed of two protons and two neutrons
B: Are equivalent to a helium nuclei
C: Have a high linear energy transfer
D: All of the above -
correct answer ✅D: All of the above
The average energy deposited per unit path length to a medium by
ionizing radiation as it passes through that medium best describes:
A: Linear energy transfer (LET)
B: Radiation absorbed dose (Rad)
C: Radiation equivalent man (Rem)
D: Tissue absorbed dose (TAR) -
correct answer ✅A: linear energy transfer (LET)
Should you increase your distance from the source to three times
the original, your exposure would become:
A: 9 Times the original
B: 2 times the original
