PM H-C TEST BANK EXAM QUESTIONS AND ACCURATE
ANSWERS| ACTUAL REAL EXAM WITH FREQUENTLY
TESTED QUESTIONS AND STUDY GUIDE|ALREADY A
GRADED|GUARANTEED PASS|LATEST UPDATE 2025.
The HVL for 70 kVp is greater ___________________. - CORRECT ANSWER With high
filtration than with low filtration
Which type of radiation is emitted from the orbitals of an atom - CORRECT ANSWER x-ray
What is the function of oil used in the high voltage section of the
x-ray imaging system? - CORRECT ANSWER electric insulation
What is the intensity (in R/minutes) of the x-ray beam at the
table top that should NOT BE exceeded for fluoroscopic system
equipped with automatic brightness stabilization? - CORRECT ANSWER 10 R/minute
Which generator will MOST likely deposit highest energy to the
anode at the same peak voltage - CORRECT ANSWER constant potential
What is the main advantage of full-wave rectification over halfwave
rectification? - CORRECT ANSWER more x-ray per cycle
If the distance from an x-ray point source is doubled, what will
happen to the x-ray output at the same SID? - CORRECT ANSWER one fourth ( 1/4 )
Which will increase when the tube voltage is increased? - CORRECT ANSWER frequency
Which tissue has the highest radiosensitivity? - CORRECT ANSWER gonads
Which has the highest oxygen enhancement ratio (OER)? - CORRECT ANSWER diagnostic x-
ray
Which is NOT associated with plotting film response to x-ray
exposure? - CORRECT ANSWER reciprocating curve
The photoelectric effect will produce: - CORRECT ANSWER characteristics x-ray
Which refers to the optical base density? - CORRECT ANSWER optical density of base
Most type of new modality films may be processed under this
type of colored - CORRECT ANSWER red
If a radiologist will increase his distance from a fluoroscopic
,equipment from 1m to 2m, what will be the radiation dose reduction? - CORRECT ANSWER
one fourth ( 1/4 )
What will cause the failure of the system or subsystem of an
automatic processor? - CORRECT ANSWER poor preventive maintenance
This organ is the factory for blood formation - CORRECT ANSWER bone marrow
Which type of radiation can produce free radicals associated
with biologic injury? - CORRECT ANSWER diagnostic x-ray
Which of the following will you increase to reduce radiographic
noise? - CORRECT ANSWER grid ratio
Which BEST describe tissue damage induced by radiation? - CORRECT ANSWER caused by
interaction at tissue level
Which is NOT considered an acute radiation syndrome? - CORRECT ANSWER malignancies
Which is true for normal radiographic set up? - CORRECT ANSWER longer Focal film
distance(FFD) reduces magnification
Which will be greater for green light compared to red light? - CORRECT ANSWER energy
What darkroom will be needed to generate the H and D curve
for films? - CORRECT ANSWER sensitometer
What is likely increase of the film properties used for chest x-ray
examination? - CORRECT ANSWER latitude
What will be the dose reduction in percent for a radiographer
who will be standing 2m from the patient instead of 1m only? - CORRECT ANSWER 75 %
Which considered undesired in image formation? - CORRECT ANSWER scatter x-ray
A major problem with automatic exposure control is - CORRECT ANSWER positioning of the
anatomical part is critical
Which of the following views is an Intra-oral? - CORRECT ANSWER mandibular symphysis
Which of the following refers to the distribution in size space of
the silver halide crystal grains in the emulsion? - CORRECT ANSWER film graininess
Dry to drop time - CORRECT ANSWER The time it takes for a film to be fed through a
processor and drop into the film receiving bin
,Which of the following artifact is most likely to occur before
processing? - CORRECT ANSWER blurring (chemical fog)
What principally determine the responses of irradiated tissue - CORRECT ANSWER tissue type
and beam intensity
Motion blurring is usually caused by too - CORRECT ANSWER long exposure time
Unit of mass: - CORRECT ANSWER kilogram (kg)
If SID is halved, radiographic density is - CORRECT ANSWER increased four times
Type of colored filter that will NOT allow the darkroom
processing of most types of green light sensitive films: - CORRECT ANSWER white
Annual dose limit for a nuclear medicine technologist: - CORRECT ANSWER 50 mSv
Interaction which is NOT likely to occur for 90 keV photon
interaction incident on a lead barrier: - CORRECT ANSWER pair production
If SID is doubled, radiographic density: - CORRECT ANSWER reduced to one fourth
It is NOT considered among the factors that determine shielding
thickness: - CORRECT ANSWER type of x-ray examination
Soft x-rays are _________________________and hard x-ray
are ________________________________-. - CORRECT ANSWER not penetrating ,
penetrating
The most likely characteristics x-ray energy used for chest
radiography is: - CORRECT ANSWER 65 kev
_______________________ has the same properties as x-ray: - CORRECT ANSWER gamma
ray
The filament transformer is: - CORRECT ANSWER step-down transformer
Which will increases the x-ray tube output - CORRECT ANSWER Voltage
What is the description of distortion - CORRECT ANSWER Malpresentation of anatomical
structure
Which of the following will you increase to reduce
radiographic noise? - CORRECT ANSWER GRID RATIO
What is NOT the major systems of automatic
, processor? - CORRECT ANSWER Development system
Which material is added to tungsten target to reduce
pitting and cracking caused by overheating - - CORRECT ANSWER rhenium
The material used in output phosphor of the image
intensifier - CORRECT ANSWER ZnCdS
What type of colored filter will NOT allow darkroom
processing of most green light sensitive film - CORRECT ANSWER Amber
What percentage of primary x-ray beam is usually
produced as scatter radiation - CORRECT ANSWER 0.1
Which will LEAST affect the design and replenishment? - CORRECT ANSWER Beam
Filtration
Which are included in the ICRP system of dose
limitations? - CORRECT ANSWER l-justification
II-optimization
III-dose limitation
Which is NOT considered part of monitoring report of
Dose. - CORRECT ANSWER Activity
What is the reduction factor of the xray beam if it is
attenuated by Four (4) HVLs. - CORRECT ANSWER 16
What is needed dose to cause sterility of human. - CORRECT ANSWER 400-500rad
Which type of xray transmitted thru the patient and
enters to the image receptor - CORRECT ANSWER Remnant
.Death occur in GI Syndrome because -
What is not TRUE when xray interacts with matter? - CORRECT ANSWER electrons are
converted into x-rays CORRECT ANSWER damage of the lining of intestine
What happens to RBE when LET is increased - CORRECT ANSWER increased
Which is NOT an example of late biologic effect - CORRECT ANSWER Sterility
What is considered a biologic dose modification factor - CORRECT ANSWER Oxygen Effect
The depth of maximum dose of 18MV x-ray is at - CORRECT ANSWER 3.5 cm
ANSWERS| ACTUAL REAL EXAM WITH FREQUENTLY
TESTED QUESTIONS AND STUDY GUIDE|ALREADY A
GRADED|GUARANTEED PASS|LATEST UPDATE 2025.
The HVL for 70 kVp is greater ___________________. - CORRECT ANSWER With high
filtration than with low filtration
Which type of radiation is emitted from the orbitals of an atom - CORRECT ANSWER x-ray
What is the function of oil used in the high voltage section of the
x-ray imaging system? - CORRECT ANSWER electric insulation
What is the intensity (in R/minutes) of the x-ray beam at the
table top that should NOT BE exceeded for fluoroscopic system
equipped with automatic brightness stabilization? - CORRECT ANSWER 10 R/minute
Which generator will MOST likely deposit highest energy to the
anode at the same peak voltage - CORRECT ANSWER constant potential
What is the main advantage of full-wave rectification over halfwave
rectification? - CORRECT ANSWER more x-ray per cycle
If the distance from an x-ray point source is doubled, what will
happen to the x-ray output at the same SID? - CORRECT ANSWER one fourth ( 1/4 )
Which will increase when the tube voltage is increased? - CORRECT ANSWER frequency
Which tissue has the highest radiosensitivity? - CORRECT ANSWER gonads
Which has the highest oxygen enhancement ratio (OER)? - CORRECT ANSWER diagnostic x-
ray
Which is NOT associated with plotting film response to x-ray
exposure? - CORRECT ANSWER reciprocating curve
The photoelectric effect will produce: - CORRECT ANSWER characteristics x-ray
Which refers to the optical base density? - CORRECT ANSWER optical density of base
Most type of new modality films may be processed under this
type of colored - CORRECT ANSWER red
If a radiologist will increase his distance from a fluoroscopic
,equipment from 1m to 2m, what will be the radiation dose reduction? - CORRECT ANSWER
one fourth ( 1/4 )
What will cause the failure of the system or subsystem of an
automatic processor? - CORRECT ANSWER poor preventive maintenance
This organ is the factory for blood formation - CORRECT ANSWER bone marrow
Which type of radiation can produce free radicals associated
with biologic injury? - CORRECT ANSWER diagnostic x-ray
Which of the following will you increase to reduce radiographic
noise? - CORRECT ANSWER grid ratio
Which BEST describe tissue damage induced by radiation? - CORRECT ANSWER caused by
interaction at tissue level
Which is NOT considered an acute radiation syndrome? - CORRECT ANSWER malignancies
Which is true for normal radiographic set up? - CORRECT ANSWER longer Focal film
distance(FFD) reduces magnification
Which will be greater for green light compared to red light? - CORRECT ANSWER energy
What darkroom will be needed to generate the H and D curve
for films? - CORRECT ANSWER sensitometer
What is likely increase of the film properties used for chest x-ray
examination? - CORRECT ANSWER latitude
What will be the dose reduction in percent for a radiographer
who will be standing 2m from the patient instead of 1m only? - CORRECT ANSWER 75 %
Which considered undesired in image formation? - CORRECT ANSWER scatter x-ray
A major problem with automatic exposure control is - CORRECT ANSWER positioning of the
anatomical part is critical
Which of the following views is an Intra-oral? - CORRECT ANSWER mandibular symphysis
Which of the following refers to the distribution in size space of
the silver halide crystal grains in the emulsion? - CORRECT ANSWER film graininess
Dry to drop time - CORRECT ANSWER The time it takes for a film to be fed through a
processor and drop into the film receiving bin
,Which of the following artifact is most likely to occur before
processing? - CORRECT ANSWER blurring (chemical fog)
What principally determine the responses of irradiated tissue - CORRECT ANSWER tissue type
and beam intensity
Motion blurring is usually caused by too - CORRECT ANSWER long exposure time
Unit of mass: - CORRECT ANSWER kilogram (kg)
If SID is halved, radiographic density is - CORRECT ANSWER increased four times
Type of colored filter that will NOT allow the darkroom
processing of most types of green light sensitive films: - CORRECT ANSWER white
Annual dose limit for a nuclear medicine technologist: - CORRECT ANSWER 50 mSv
Interaction which is NOT likely to occur for 90 keV photon
interaction incident on a lead barrier: - CORRECT ANSWER pair production
If SID is doubled, radiographic density: - CORRECT ANSWER reduced to one fourth
It is NOT considered among the factors that determine shielding
thickness: - CORRECT ANSWER type of x-ray examination
Soft x-rays are _________________________and hard x-ray
are ________________________________-. - CORRECT ANSWER not penetrating ,
penetrating
The most likely characteristics x-ray energy used for chest
radiography is: - CORRECT ANSWER 65 kev
_______________________ has the same properties as x-ray: - CORRECT ANSWER gamma
ray
The filament transformer is: - CORRECT ANSWER step-down transformer
Which will increases the x-ray tube output - CORRECT ANSWER Voltage
What is the description of distortion - CORRECT ANSWER Malpresentation of anatomical
structure
Which of the following will you increase to reduce
radiographic noise? - CORRECT ANSWER GRID RATIO
What is NOT the major systems of automatic
, processor? - CORRECT ANSWER Development system
Which material is added to tungsten target to reduce
pitting and cracking caused by overheating - - CORRECT ANSWER rhenium
The material used in output phosphor of the image
intensifier - CORRECT ANSWER ZnCdS
What type of colored filter will NOT allow darkroom
processing of most green light sensitive film - CORRECT ANSWER Amber
What percentage of primary x-ray beam is usually
produced as scatter radiation - CORRECT ANSWER 0.1
Which will LEAST affect the design and replenishment? - CORRECT ANSWER Beam
Filtration
Which are included in the ICRP system of dose
limitations? - CORRECT ANSWER l-justification
II-optimization
III-dose limitation
Which is NOT considered part of monitoring report of
Dose. - CORRECT ANSWER Activity
What is the reduction factor of the xray beam if it is
attenuated by Four (4) HVLs. - CORRECT ANSWER 16
What is needed dose to cause sterility of human. - CORRECT ANSWER 400-500rad
Which type of xray transmitted thru the patient and
enters to the image receptor - CORRECT ANSWER Remnant
.Death occur in GI Syndrome because -
What is not TRUE when xray interacts with matter? - CORRECT ANSWER electrons are
converted into x-rays CORRECT ANSWER damage of the lining of intestine
What happens to RBE when LET is increased - CORRECT ANSWER increased
Which is NOT an example of late biologic effect - CORRECT ANSWER Sterility
What is considered a biologic dose modification factor - CORRECT ANSWER Oxygen Effect
The depth of maximum dose of 18MV x-ray is at - CORRECT ANSWER 3.5 cm
