Radiography Mock Exam A
Which of the following numbers represents the most important region to be shielded
during a radiographic examination of the female pelvis? - ✅B.) #2
The monthly effective dose equivalent limit must not exceed .05 rem (.5 mSv) for which
of the following?
1.) An Embryo-fetus
2.) A pregnant radiographer
3.) A premature baby - ✅A.) 1 ONLY
If the diagnostic filtration of a radiographic unit is inadvertently omitted for a series of
abdominal exposures, the greatest increase in dose will occur in the: - ✅C.) Skin of the
abdomen
Which of the following types of radiation-induced conditions are NOT classified as long
term effects: - ✅C.) Genetic mutations
If a radiographer becomes pregnant the potential risk to the fetus is least likely during: -
✅B.) Tomographic imaging of the pelvis
The majority of damage to the body following exposure to diagnostic x-rays results from
the: - ✅A.) Indirect effect to radiation
Which set of exposure settings and technical factors is most likely to produce the lowest
entrance skin exposure to a patient during a radiographic examination?
A.) 200 mA, 10 ms, 87 kV, 200 speed
B.) 400 mA, 20 ms, 75 kV, 200 speed
C.) 800 mA, 20 ms, 82 kV, 400 speed
D.) 400 mA, 40 ms, 79 kV, 400 speed - ✅A.) 200 mA, 10 ms, 87 kV, 200 speed
A patient receives a dose of 200 rad (200 centigray) of fast moving neutrons with a
quality factor (QF) of 10. The total dose equivalent of this person is: - ✅B.) 2000 rem
Hydrogen peroxide, hydrochloric acid, and sodium hydroxide are three of the common
compounds that are normally formed when: - ✅C.) Saltwater in the cytoplasm is
irradiated
A radioactive source has a half-life of eight hours. How long would it take to reduce an
800 millicurie per hour source to a level of 50 millicurie per hour? - ✅A.) 24 hours
Because of environmental factors, the manufacturers recommend the maximum period
of time that the film badge should be worn for personnel monitoring program is: - ✅C.) 3
months
, The theory of radiation hormesis suggests which of the following: - ✅C.) Low doses of
radiation may produce beneficial effects in the exposed individuals
Which of the normal cells in the human body have the highest radiosensitivity to the
effects of a large irradiation? - ✅A.) Spermatogonia
The vast majority of heat that is produced during the x-ray production process is created
and concentrated on the: - ✅D.) Focal tract of the anode disk
The primary reason for the high efficiency of a transformer is its: - ✅B.) Absence of
moving parts
Most modern three-phase radiographic units allow for exposure times as low as 1
millisecond (.001 sec). The timer most commonly used for this purpose is a/an: - ✅A.)
Electronic timer
Which is the proper sequence of materials traveled through by the x-ray beam after
leaving the anode of the x-ray tube?
1.) Pyrex glass
2.) Collimator mirror
3.) Added filtration layer - ✅A.) 1, 3, 2
The maximum aluminum equivalent for the x-ray table for or upright bucky assembly
should be less than: - ✅A.) 1 millimeter
The type of meter that is normally employed to measure the amount of current that
passes across the electrodes in an x-ray tube is a: - ✅B.) Milliammeter
The metal collar that surrounds the filaments of most modern x-ray tubes serves to: -
✅B.) Compress the electron stream on to a smaller region of the focal tract
The principal device that is used in a quality control program to determine the exposure
rate of a radiographic or fluoroscopic unit is called a: - ✅D.) mR/mAs (ionization) meter
Which of the following tube malfunctions are NOT likely to decrease the radiation output
of an x-ray tube: - ✅C.) Excessive filament wear
The timer accuracy for exposure timer values greater than 10 milliseconds should be no
greater than: - ✅D.) 5%
Which of the following tube malfunctions is most likely to occur if a radiographer does
not employ the proper warm-up techniques before making a series of high kVp
exposures on a 3 phase radiographic unit? - ✅B.) Cracking of the anode
Which of the following numbers represents the most important region to be shielded
during a radiographic examination of the female pelvis? - ✅B.) #2
The monthly effective dose equivalent limit must not exceed .05 rem (.5 mSv) for which
of the following?
1.) An Embryo-fetus
2.) A pregnant radiographer
3.) A premature baby - ✅A.) 1 ONLY
If the diagnostic filtration of a radiographic unit is inadvertently omitted for a series of
abdominal exposures, the greatest increase in dose will occur in the: - ✅C.) Skin of the
abdomen
Which of the following types of radiation-induced conditions are NOT classified as long
term effects: - ✅C.) Genetic mutations
If a radiographer becomes pregnant the potential risk to the fetus is least likely during: -
✅B.) Tomographic imaging of the pelvis
The majority of damage to the body following exposure to diagnostic x-rays results from
the: - ✅A.) Indirect effect to radiation
Which set of exposure settings and technical factors is most likely to produce the lowest
entrance skin exposure to a patient during a radiographic examination?
A.) 200 mA, 10 ms, 87 kV, 200 speed
B.) 400 mA, 20 ms, 75 kV, 200 speed
C.) 800 mA, 20 ms, 82 kV, 400 speed
D.) 400 mA, 40 ms, 79 kV, 400 speed - ✅A.) 200 mA, 10 ms, 87 kV, 200 speed
A patient receives a dose of 200 rad (200 centigray) of fast moving neutrons with a
quality factor (QF) of 10. The total dose equivalent of this person is: - ✅B.) 2000 rem
Hydrogen peroxide, hydrochloric acid, and sodium hydroxide are three of the common
compounds that are normally formed when: - ✅C.) Saltwater in the cytoplasm is
irradiated
A radioactive source has a half-life of eight hours. How long would it take to reduce an
800 millicurie per hour source to a level of 50 millicurie per hour? - ✅A.) 24 hours
Because of environmental factors, the manufacturers recommend the maximum period
of time that the film badge should be worn for personnel monitoring program is: - ✅C.) 3
months
, The theory of radiation hormesis suggests which of the following: - ✅C.) Low doses of
radiation may produce beneficial effects in the exposed individuals
Which of the normal cells in the human body have the highest radiosensitivity to the
effects of a large irradiation? - ✅A.) Spermatogonia
The vast majority of heat that is produced during the x-ray production process is created
and concentrated on the: - ✅D.) Focal tract of the anode disk
The primary reason for the high efficiency of a transformer is its: - ✅B.) Absence of
moving parts
Most modern three-phase radiographic units allow for exposure times as low as 1
millisecond (.001 sec). The timer most commonly used for this purpose is a/an: - ✅A.)
Electronic timer
Which is the proper sequence of materials traveled through by the x-ray beam after
leaving the anode of the x-ray tube?
1.) Pyrex glass
2.) Collimator mirror
3.) Added filtration layer - ✅A.) 1, 3, 2
The maximum aluminum equivalent for the x-ray table for or upright bucky assembly
should be less than: - ✅A.) 1 millimeter
The type of meter that is normally employed to measure the amount of current that
passes across the electrodes in an x-ray tube is a: - ✅B.) Milliammeter
The metal collar that surrounds the filaments of most modern x-ray tubes serves to: -
✅B.) Compress the electron stream on to a smaller region of the focal tract
The principal device that is used in a quality control program to determine the exposure
rate of a radiographic or fluoroscopic unit is called a: - ✅D.) mR/mAs (ionization) meter
Which of the following tube malfunctions are NOT likely to decrease the radiation output
of an x-ray tube: - ✅C.) Excessive filament wear
The timer accuracy for exposure timer values greater than 10 milliseconds should be no
greater than: - ✅D.) 5%
Which of the following tube malfunctions is most likely to occur if a radiographer does
not employ the proper warm-up techniques before making a series of high kVp
exposures on a 3 phase radiographic unit? - ✅B.) Cracking of the anode
