ASNT RT II
A basic distinction among a radiograph and a fluoroscopic image is: - ANS-the fluoroscopic
photograph is a nice while the radiograph is a bad transparency
a co-60 gamma supply has an approximate sensible thickness limit of: - ANS-nine" of steel
or its equal
A ANS-an H&D curve is a curve that relates density to the logarithm of publicity or relative
publicity. The time period "ANS-betatron" refers to a tool that mixes a magnet and
transformer to guide and accelerate electrons in a round orbit to extraordinarily excessive
energies. A specific feature of high- voltage radiography is: - ANS-applicable to
comparatively thick or especially soaking up specimens
a fuel- crammed region positioned in an electrical discipline created by means of electrodes
across which a ability difference is implemented forms the foremost portion of: - ANS-an
ionization chamber
a standard rule governing the utility of the geometric precept of shadow formation sates that
the: - ANS-critical ray ought to be as almost perpendicular to the film as feasible to preserver
spatial relationships
The principal ray should be ANS-as nearly perpendicular to the film as viable on the way to
maintain spatial relationships, as that is a general rule governing the utility of the geometric
concepts of shadow formation. A huge bodily length supply may additionally produce an
equal exceptional radiograph if: - ANS-the source-to-movie distance is expanded
a lead sheet containing a pinhole may be located midway among the x-ray tube and the film
for you to: - ANS-decide the approximate length fo the focal spot
a light image of a backing "B" on a processed radiograph is probably caused by: -
ANS-backscatter
a monochromatic x-ray beam is: - ANS-a beam such as a unmarried wavelength
a qualitative term often used to suggest the scale of the smallest detail that may be visible in
a radiograph is: - ANS-radiographic sensitivity
a radiograph is taken at a voltage of 500 kV. If the voltage is multiplied with a resultant
growth within the energy of radiation, while all different conditions continue to be the same: -
ANS-there may be little enormous change within the granininess of the tilm
a radiograph of a metallic weldment is made using a fifteen MeV betatron. When the
radiograph developed, there may be an typical film mottling. A probable reason for such
mottling is: - ANS-failure to apply a lead screen in the course of publicity
a special radiographic technique requiring two radiographs taken during separate exposures
from two distinctive positions to offer the visible impression of a 3-d display when regarded in
an optical tool concurrently is called: - ANS-stereoradiography
An iron center transformer voltage selector with a single winding and a chain of taps at
numerous points alongside the winding is called an ANS-an autotransformer. ANS-turn out
to be discolored and lose a number of its brilliance if a zinc cadmium fluoroscopic display
screen is constantly exposed to brilliant daylight hours, daylight, or different UV radiation
assets. Which isotope is used nearly exclusively in gamma radiography? ANS-Ir-192 or
Co-60 an x-ray film having huge range also has, through definition: - ANS-low evaluation
, an x-ray tube is rated for a maximum of 250 kVp. This tube can be operated at a maximum
of: - ANS-250,000 V peak voltage
an x-ray tube with a small focal spot is considered better than one with a big focal spot while
it's miles desired to reap: - ANS-higher definition
because the improvement time will increase what happens to the function curve? - ANS-it
grows steeper and actions to the left
as the effective strength of the radiation increases as much as about 250 kV: - ANS-film
graininess increases
because the MeV is multiplied, the cone of x-radiation will become greater ____________ -
ANS-slim
at voltages above 400 kV, using cause provide protection may also gift extreme troubles. If
this is a critical hassle, which fabric could maximum in all likelihood be used alternatively? -
ANS-concrete
because of geometrical elements inclusive of a source length, source-to-specimen distance,
and specimen-to-film distance, there can be a lack of best sharpness at the rims of
indicators. The unsharpness as a result of geometrical factors can be called the: -
ANS-prenumbral shadow
because of geometrical factors along with supply size, source-to-specimen distance, and
specimen-to-film distance, there may be a lack of ideal sharpness at the brink of warning
signs. The unsharpness as a result of these factors can be known as the: - ANS-prenumbral
shadow
except serving as a filter out, screens of excessive atomic numbers, which include lead and
lead antimony, additionally: - ANS-provide some image intensifying movement
Co-59 turns into Co-60 while it's far located in a nuclear reactor where it captures: - ANS-a
neutron
comparison agitation of the developer at some stage in the development method by
mechanical stirrers or circulating pumps may additionally: - ANS-cause undesirable,
preferential drift of developer alongside certain paths
developer answer must be discarded when the quantity of replenisher introduced equals: -
ANS-2-three times the authentic amount of developer
film choice for an x-ray publicity relies upon on: (three) - ANS-the thickness of the
component, the fabric of the specimen and the voltage range of the x-ray device
movies which are left among lead displays too lengthy in a high- temperature and
excessive- humidity surroundings may also come to be: - ANS-fogged
filters are placed between the x-ray tube and specimen generally tend to reduce scatter
radiation undercutting the specimen with the aid of: - ANS-absorbing the longer wavelength
additives of the number one beam
filters used at the port of the x-ray tube: - ANS-filter "smooth" radiation to offer a more
homogenous x-ray beam
fluoroscopic displays, as established and used, are without difficulty broken with the aid of
what? - ANS-exposure to UV radiation or sunlight
for a given alternate inside the radiation publicity, film assessment is the inherent ability to
expose: - ANS-a difference in density
for realistic purposes, the form of the characteristic curve of an x-ray film is: -
ANS-independent of the exceptional of x- or gamma radiation
how will growing the x- or gamma ray strength effect the shape of the feature curve? -
ANS-it'll have little impact at the form of a feature curve
A basic distinction among a radiograph and a fluoroscopic image is: - ANS-the fluoroscopic
photograph is a nice while the radiograph is a bad transparency
a co-60 gamma supply has an approximate sensible thickness limit of: - ANS-nine" of steel
or its equal
A ANS-an H&D curve is a curve that relates density to the logarithm of publicity or relative
publicity. The time period "ANS-betatron" refers to a tool that mixes a magnet and
transformer to guide and accelerate electrons in a round orbit to extraordinarily excessive
energies. A specific feature of high- voltage radiography is: - ANS-applicable to
comparatively thick or especially soaking up specimens
a fuel- crammed region positioned in an electrical discipline created by means of electrodes
across which a ability difference is implemented forms the foremost portion of: - ANS-an
ionization chamber
a standard rule governing the utility of the geometric precept of shadow formation sates that
the: - ANS-critical ray ought to be as almost perpendicular to the film as feasible to preserver
spatial relationships
The principal ray should be ANS-as nearly perpendicular to the film as viable on the way to
maintain spatial relationships, as that is a general rule governing the utility of the geometric
concepts of shadow formation. A huge bodily length supply may additionally produce an
equal exceptional radiograph if: - ANS-the source-to-movie distance is expanded
a lead sheet containing a pinhole may be located midway among the x-ray tube and the film
for you to: - ANS-decide the approximate length fo the focal spot
a light image of a backing "B" on a processed radiograph is probably caused by: -
ANS-backscatter
a monochromatic x-ray beam is: - ANS-a beam such as a unmarried wavelength
a qualitative term often used to suggest the scale of the smallest detail that may be visible in
a radiograph is: - ANS-radiographic sensitivity
a radiograph is taken at a voltage of 500 kV. If the voltage is multiplied with a resultant
growth within the energy of radiation, while all different conditions continue to be the same: -
ANS-there may be little enormous change within the granininess of the tilm
a radiograph of a metallic weldment is made using a fifteen MeV betatron. When the
radiograph developed, there may be an typical film mottling. A probable reason for such
mottling is: - ANS-failure to apply a lead screen in the course of publicity
a special radiographic technique requiring two radiographs taken during separate exposures
from two distinctive positions to offer the visible impression of a 3-d display when regarded in
an optical tool concurrently is called: - ANS-stereoradiography
An iron center transformer voltage selector with a single winding and a chain of taps at
numerous points alongside the winding is called an ANS-an autotransformer. ANS-turn out
to be discolored and lose a number of its brilliance if a zinc cadmium fluoroscopic display
screen is constantly exposed to brilliant daylight hours, daylight, or different UV radiation
assets. Which isotope is used nearly exclusively in gamma radiography? ANS-Ir-192 or
Co-60 an x-ray film having huge range also has, through definition: - ANS-low evaluation
, an x-ray tube is rated for a maximum of 250 kVp. This tube can be operated at a maximum
of: - ANS-250,000 V peak voltage
an x-ray tube with a small focal spot is considered better than one with a big focal spot while
it's miles desired to reap: - ANS-higher definition
because the improvement time will increase what happens to the function curve? - ANS-it
grows steeper and actions to the left
as the effective strength of the radiation increases as much as about 250 kV: - ANS-film
graininess increases
because the MeV is multiplied, the cone of x-radiation will become greater ____________ -
ANS-slim
at voltages above 400 kV, using cause provide protection may also gift extreme troubles. If
this is a critical hassle, which fabric could maximum in all likelihood be used alternatively? -
ANS-concrete
because of geometrical elements inclusive of a source length, source-to-specimen distance,
and specimen-to-film distance, there can be a lack of best sharpness at the rims of
indicators. The unsharpness as a result of geometrical factors can be called the: -
ANS-prenumbral shadow
because of geometrical factors along with supply size, source-to-specimen distance, and
specimen-to-film distance, there may be a lack of ideal sharpness at the brink of warning
signs. The unsharpness as a result of these factors can be known as the: - ANS-prenumbral
shadow
except serving as a filter out, screens of excessive atomic numbers, which include lead and
lead antimony, additionally: - ANS-provide some image intensifying movement
Co-59 turns into Co-60 while it's far located in a nuclear reactor where it captures: - ANS-a
neutron
comparison agitation of the developer at some stage in the development method by
mechanical stirrers or circulating pumps may additionally: - ANS-cause undesirable,
preferential drift of developer alongside certain paths
developer answer must be discarded when the quantity of replenisher introduced equals: -
ANS-2-three times the authentic amount of developer
film choice for an x-ray publicity relies upon on: (three) - ANS-the thickness of the
component, the fabric of the specimen and the voltage range of the x-ray device
movies which are left among lead displays too lengthy in a high- temperature and
excessive- humidity surroundings may also come to be: - ANS-fogged
filters are placed between the x-ray tube and specimen generally tend to reduce scatter
radiation undercutting the specimen with the aid of: - ANS-absorbing the longer wavelength
additives of the number one beam
filters used at the port of the x-ray tube: - ANS-filter "smooth" radiation to offer a more
homogenous x-ray beam
fluoroscopic displays, as established and used, are without difficulty broken with the aid of
what? - ANS-exposure to UV radiation or sunlight
for a given alternate inside the radiation publicity, film assessment is the inherent ability to
expose: - ANS-a difference in density
for realistic purposes, the form of the characteristic curve of an x-ray film is: -
ANS-independent of the exceptional of x- or gamma radiation
how will growing the x- or gamma ray strength effect the shape of the feature curve? -
ANS-it'll have little impact at the form of a feature curve
