ARRT Radiography Exam Review Latest 2026/2027
Questions and Correct Detailed Answers Already
Graded A+
What occurs during the Photoelectric Effect? - CORRECT ANSWER-The incident
x-ray interacts with an inner-shell electron and ejects it from the atom, ionizing
the atom. The x-ray is not scattered but totally absorbed, releasing all of its
energy to the ejected electron. Characteristic x-rays are then produced as outer-
shell electrons fill the void left by the inner-shell electron.
What is Bremsstrahlung Radiation? - CORRECT ANSWER-Bremsstrahlung x-
rays are produced when a projectile electron is slowed by the electric field of a
target atom nucleus.
What is Characteristic Radiation? - CORRECT ANSWER-When projectile
electrons interact with inner-shell electrons of the target atom, rather than with
an outer-shell electron.
X-ray's have diagnostic wavelengths of ________ to ________, and travel as
bundles of energy called photons. - CORRECT ANSWER-1) 0.1 Å
2) 0.5 Å
,The upper boundary dose that can be absorbed, either in a single exposure or
annually, with a negligible risk of somatic or genetic damage to the individual, is
known as ________. - CORRECT ANSWER-Effective Dose
What is the annual effective dose limit for occupational exposure? - CORRECT
ANSWER-50 mSv
What is the annual equivalent dose limit for occupational exposure to the lens of
the eye? - CORRECT ANSWER-150 mSv
What is the annual equivalent dose limit for occupational exposure to the
localized areas of the skin, hands and feet? - CORRECT ANSWER-500 mSv
This is calculated by multiplying the radiographer's age in years times 10 mSv. -
CORRECT ANSWER-Cumulative effective dose limit.
The annual effective dose limit for students over the age of 18 is ________. -
CORRECT ANSWER-50 mSv
,The annual effective dose limit for the general public, assuming frequent
exposure is ________. - CORRECT ANSWER-1 mSv
The annual effective dose limit for the general public, assuming infrequent
exposure is ________. - CORRECT ANSWER-5 mSv
The total equivalent dose to the embryo/fetus for the entire gestational period is
________. - CORRECT ANSWER-5 mSv
The equivalent dose limit to the embryo/fetus per month is ________. -
CORRECT ANSWER-0.5 mSv
Effects that occur by chance and which may occur without a threshold level of
dose, whose probability is proportional to the dose and whose severity is
independent of the dose: - CORRECT ANSWER-Stochastic Effects
Effects that have a threshold below which the effect does not occur. The
threshold may be very low and may vary from person to person. However, once
the threshold has been exceeded, the severity of an effect increases with dose: -
CORRECT ANSWER-Deterministic Effects
, ________ is somatic cell division that comprises of four phases. When division is
complete, each new cell contains 46 chromosomes. - CORRECT ANSWER-
Mitosis
What are the four phases of mitosis? - CORRECT ANSWER-1) Prophase
2) Metaphase
3) Anaphase
4) Telophase
________ is germ (sperm or ovum) cell division that halves the number of
chromosomes in each cell so that the union of two germ cells produces a new cell
with 46 chromosomes. - CORRECT ANSWER-Meiosis
This occurs when radiation transfers its energy directly to the DNA or RNA. -
CORRECT ANSWER-Direct Effect
What is a tort? - CORRECT ANSWER-A violation of civil law.
Torts are also known as ________. - CORRECT ANSWER-Personal Injury Law
Questions and Correct Detailed Answers Already
Graded A+
What occurs during the Photoelectric Effect? - CORRECT ANSWER-The incident
x-ray interacts with an inner-shell electron and ejects it from the atom, ionizing
the atom. The x-ray is not scattered but totally absorbed, releasing all of its
energy to the ejected electron. Characteristic x-rays are then produced as outer-
shell electrons fill the void left by the inner-shell electron.
What is Bremsstrahlung Radiation? - CORRECT ANSWER-Bremsstrahlung x-
rays are produced when a projectile electron is slowed by the electric field of a
target atom nucleus.
What is Characteristic Radiation? - CORRECT ANSWER-When projectile
electrons interact with inner-shell electrons of the target atom, rather than with
an outer-shell electron.
X-ray's have diagnostic wavelengths of ________ to ________, and travel as
bundles of energy called photons. - CORRECT ANSWER-1) 0.1 Å
2) 0.5 Å
,The upper boundary dose that can be absorbed, either in a single exposure or
annually, with a negligible risk of somatic or genetic damage to the individual, is
known as ________. - CORRECT ANSWER-Effective Dose
What is the annual effective dose limit for occupational exposure? - CORRECT
ANSWER-50 mSv
What is the annual equivalent dose limit for occupational exposure to the lens of
the eye? - CORRECT ANSWER-150 mSv
What is the annual equivalent dose limit for occupational exposure to the
localized areas of the skin, hands and feet? - CORRECT ANSWER-500 mSv
This is calculated by multiplying the radiographer's age in years times 10 mSv. -
CORRECT ANSWER-Cumulative effective dose limit.
The annual effective dose limit for students over the age of 18 is ________. -
CORRECT ANSWER-50 mSv
,The annual effective dose limit for the general public, assuming frequent
exposure is ________. - CORRECT ANSWER-1 mSv
The annual effective dose limit for the general public, assuming infrequent
exposure is ________. - CORRECT ANSWER-5 mSv
The total equivalent dose to the embryo/fetus for the entire gestational period is
________. - CORRECT ANSWER-5 mSv
The equivalent dose limit to the embryo/fetus per month is ________. -
CORRECT ANSWER-0.5 mSv
Effects that occur by chance and which may occur without a threshold level of
dose, whose probability is proportional to the dose and whose severity is
independent of the dose: - CORRECT ANSWER-Stochastic Effects
Effects that have a threshold below which the effect does not occur. The
threshold may be very low and may vary from person to person. However, once
the threshold has been exceeded, the severity of an effect increases with dose: -
CORRECT ANSWER-Deterministic Effects
, ________ is somatic cell division that comprises of four phases. When division is
complete, each new cell contains 46 chromosomes. - CORRECT ANSWER-
Mitosis
What are the four phases of mitosis? - CORRECT ANSWER-1) Prophase
2) Metaphase
3) Anaphase
4) Telophase
________ is germ (sperm or ovum) cell division that halves the number of
chromosomes in each cell so that the union of two germ cells produces a new cell
with 46 chromosomes. - CORRECT ANSWER-Meiosis
This occurs when radiation transfers its energy directly to the DNA or RNA. -
CORRECT ANSWER-Direct Effect
What is a tort? - CORRECT ANSWER-A violation of civil law.
Torts are also known as ________. - CORRECT ANSWER-Personal Injury Law
