ASRT EXAM 2025 CALIFORNIA SUPERVISOR AND
OPERATOR EXAM (ACTUAL EXAM) | ALL
QUESTIONS AND CORRECT ANSWERS | GRADED A+
| LATEST EXAM | VERIFIED ANSWERS
(unit 1) Uranium produces more neutrons and therefore has a ___, which
causes ___ biological damage.
a. Lower relative biologic effectiveness; less
b. Lower relative biologic effectiveness; greater
c. Higher relative biologic effectiveness; greater
d. Higher relative biologic effectiveness; less ---------CORRECT ANSWER--
---------------c. Higher relative biologic effectiveness; greater
___ and ___ provide the greatest risk of exposure to the radiologic
technologist operating the equipment.
a. Computed tomography (CT); magnetic resonance imaging (MRI)
b. CT; mobile radiography
c. Fluoroscopy; mobile radiography
d. Sonography; MRI ---------CORRECT ANSWER-----------------c.
Fluoroscopy; mobile radiography
(unit 1) According to the article, the MOST authoritative source of
information regarding occupational exposure to radiation is:
a. The Biological Effects of Ionizing Radiation (BEIR) VII Phase 2 Report
b. The American College of Radiology Report on Ionizing Radiation (2005)
c. The ASRT practice standards for medical imaging and radiation therapy.
d. None of the above ---------CORRECT ANSWER-----------------a. The
Biological Effects of Ionizing Radiation (BEIR) VII Phase 2 Report
(unit 1) The theory stating that ionizing radiation risk is directly proportional
to dose is known as the ___ theory.
a. Classical
,b. Compton
c. Linear no threshold
d. Photoelectric ---------CORRECT ANSWER-----------------c. Linear no
threshold
(unit 1) ALARA consists of 3 fundamental components, including: 1)
education. 2) dose limitation. 3) optimization.
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2 and 3 ---------CORRECT ANSWER-----------------c. 2 and 3
(unit 1) Recent discoveries have suggested genetic susceptibility to cancer,
suggesting radiation exposure may not induce cancer alone.
a. True
b. false ---------CORRECT ANSWER-----------------a. True
(unit 1) According to the article, the characteristic that best identifies a
natural source of radiation is the ability to:
a. Spontaneously emit excess energy
b. Emit excess energy when excited by x-rays
c. Avoid decay.
d. Glow in the dark. ---------CORRECT ANSWER-----------------a.
Spontaneously emit excess energy
(unit 1) Half-life is defined as:
a. The amount of time it takes an x-ray to reach its target.
b. The amount of time it takes to generate a wavelength equivalent to an x-
ray.
c. A radioactive element's rate of decay.
d. How long it takes for an element to release half of its energy. ---------
CORRECT ANSWER-----------------c. A radioactive element's rate of decay.
,(unit 1) Of the electromagnetic radiation forms, ___ have (has) the lowest
energy and ___ the highest.
a. Visible light; gamma rays
b. Radio waves; ultraviolet rays
c. Ultraviolet rays; x-rays
d. Radio waves; gamma rays ---------CORRECT ANSWER-----------------d.
Radio waves; gamma rays
(unit 1) Wavelength is defined by the:
a. Height of an energetic waveform.
b. Distance between 2 peaks of a waveform.
c. Length of the entire waveform.
d. Distance between 2 valleys in a waveform. ---------CORRECT ANSWER-
----------------b. Distance between 2 peaks of a waveform.
(unit 1) Of the 5 types of possible interactions between ionizing radiation
and tissues, which 3 occur at energies within the diagnostic range of 20 to
150 kV?
a. Bremsstrahlung, Compton, general scatter
b. Photoelectric, Compton, classical
c. Photoelectric, bremsstrahlung, classical
d. Classical, Compton, pair production ---------CORRECT ANSWER----------
-------b. Photoelectric, Compton, classical
(unit 1) The effective dose measurement was created to:
a. Provide a dose quantity related to the probability of damaging health due
to stochastic effects from exposure to low levels of ionizing radiation.
b. Calculate exact dose received by target organs.
c. Track radiation exposure rates in a national radiation exposure database.
d. Help radiation health physicists approve equipment by ensuring that an
accurate dose was received. ---------CORRECT ANSWER-----------------a.
, Provide a dose quantity related to the probability of damaging health due to
stochastic effects from exposure to low levels of ionizing radiation.
(unit 1) Exact tissue and organ dose absorbed can be calculated easily
using indicators on modern imaging equipment such as CT scanners and
image intensifiers.
a. True
b. False ---------CORRECT ANSWER-----------------b. False
(unit 1) What percentage of the human body is made up of water
molecules?
a. 20
b. 40
c. 60
d. 80 ---------CORRECT ANSWER-----------------d. 80
(unit 1) A function of carbohydrates in the body is to provide:
a. Immunity
b. Red blood cell production
c. Fuel for cell metabolism
d. Glucose and fats to cells ---------CORRECT ANSWER-----------------c.
Fuel for cell metabolism
(unit 1) What 4 nitrogenous bases make up the "ladder rungs" of the DNA
double helix?
a. Adenine, guanine, thymine, cytosine
b. Tryamine, guanine, thymine, cytosine
c. Adenine, guanine, cortisol, cytosine
d. Glucose, guanine, thymine, cytosine ---------CORRECT ANSWER----------
-------a. Adenine, guanine, thymine, cytosine
OPERATOR EXAM (ACTUAL EXAM) | ALL
QUESTIONS AND CORRECT ANSWERS | GRADED A+
| LATEST EXAM | VERIFIED ANSWERS
(unit 1) Uranium produces more neutrons and therefore has a ___, which
causes ___ biological damage.
a. Lower relative biologic effectiveness; less
b. Lower relative biologic effectiveness; greater
c. Higher relative biologic effectiveness; greater
d. Higher relative biologic effectiveness; less ---------CORRECT ANSWER--
---------------c. Higher relative biologic effectiveness; greater
___ and ___ provide the greatest risk of exposure to the radiologic
technologist operating the equipment.
a. Computed tomography (CT); magnetic resonance imaging (MRI)
b. CT; mobile radiography
c. Fluoroscopy; mobile radiography
d. Sonography; MRI ---------CORRECT ANSWER-----------------c.
Fluoroscopy; mobile radiography
(unit 1) According to the article, the MOST authoritative source of
information regarding occupational exposure to radiation is:
a. The Biological Effects of Ionizing Radiation (BEIR) VII Phase 2 Report
b. The American College of Radiology Report on Ionizing Radiation (2005)
c. The ASRT practice standards for medical imaging and radiation therapy.
d. None of the above ---------CORRECT ANSWER-----------------a. The
Biological Effects of Ionizing Radiation (BEIR) VII Phase 2 Report
(unit 1) The theory stating that ionizing radiation risk is directly proportional
to dose is known as the ___ theory.
a. Classical
,b. Compton
c. Linear no threshold
d. Photoelectric ---------CORRECT ANSWER-----------------c. Linear no
threshold
(unit 1) ALARA consists of 3 fundamental components, including: 1)
education. 2) dose limitation. 3) optimization.
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2 and 3 ---------CORRECT ANSWER-----------------c. 2 and 3
(unit 1) Recent discoveries have suggested genetic susceptibility to cancer,
suggesting radiation exposure may not induce cancer alone.
a. True
b. false ---------CORRECT ANSWER-----------------a. True
(unit 1) According to the article, the characteristic that best identifies a
natural source of radiation is the ability to:
a. Spontaneously emit excess energy
b. Emit excess energy when excited by x-rays
c. Avoid decay.
d. Glow in the dark. ---------CORRECT ANSWER-----------------a.
Spontaneously emit excess energy
(unit 1) Half-life is defined as:
a. The amount of time it takes an x-ray to reach its target.
b. The amount of time it takes to generate a wavelength equivalent to an x-
ray.
c. A radioactive element's rate of decay.
d. How long it takes for an element to release half of its energy. ---------
CORRECT ANSWER-----------------c. A radioactive element's rate of decay.
,(unit 1) Of the electromagnetic radiation forms, ___ have (has) the lowest
energy and ___ the highest.
a. Visible light; gamma rays
b. Radio waves; ultraviolet rays
c. Ultraviolet rays; x-rays
d. Radio waves; gamma rays ---------CORRECT ANSWER-----------------d.
Radio waves; gamma rays
(unit 1) Wavelength is defined by the:
a. Height of an energetic waveform.
b. Distance between 2 peaks of a waveform.
c. Length of the entire waveform.
d. Distance between 2 valleys in a waveform. ---------CORRECT ANSWER-
----------------b. Distance between 2 peaks of a waveform.
(unit 1) Of the 5 types of possible interactions between ionizing radiation
and tissues, which 3 occur at energies within the diagnostic range of 20 to
150 kV?
a. Bremsstrahlung, Compton, general scatter
b. Photoelectric, Compton, classical
c. Photoelectric, bremsstrahlung, classical
d. Classical, Compton, pair production ---------CORRECT ANSWER----------
-------b. Photoelectric, Compton, classical
(unit 1) The effective dose measurement was created to:
a. Provide a dose quantity related to the probability of damaging health due
to stochastic effects from exposure to low levels of ionizing radiation.
b. Calculate exact dose received by target organs.
c. Track radiation exposure rates in a national radiation exposure database.
d. Help radiation health physicists approve equipment by ensuring that an
accurate dose was received. ---------CORRECT ANSWER-----------------a.
, Provide a dose quantity related to the probability of damaging health due to
stochastic effects from exposure to low levels of ionizing radiation.
(unit 1) Exact tissue and organ dose absorbed can be calculated easily
using indicators on modern imaging equipment such as CT scanners and
image intensifiers.
a. True
b. False ---------CORRECT ANSWER-----------------b. False
(unit 1) What percentage of the human body is made up of water
molecules?
a. 20
b. 40
c. 60
d. 80 ---------CORRECT ANSWER-----------------d. 80
(unit 1) A function of carbohydrates in the body is to provide:
a. Immunity
b. Red blood cell production
c. Fuel for cell metabolism
d. Glucose and fats to cells ---------CORRECT ANSWER-----------------c.
Fuel for cell metabolism
(unit 1) What 4 nitrogenous bases make up the "ladder rungs" of the DNA
double helix?
a. Adenine, guanine, thymine, cytosine
b. Tryamine, guanine, thymine, cytosine
c. Adenine, guanine, cortisol, cytosine
d. Glucose, guanine, thymine, cytosine ---------CORRECT ANSWER----------
-------a. Adenine, guanine, thymine, cytosine
