ASNT Level 1 Questions With 100%
Verified Correct Answers.
If a film is placed in a developer solution and allowed to develop without any agitation,:
there will be a tendency for areas to affect each other
The selection of the proper type of film to be used for the X-ray examination of a particular
part depends on:
the thickness of the part, material of the specimen, voltage range of the available X-ray machine
A co-60 source has a half-life of:
5.3 years
X-ray tube current is controlled by:
the current passing through the filament
The voltage and waveform applied to the X-ray tube by a high-voltage transformer
primarily determines the:
penetrating ability
Lead foil in direct contact with X-ray film:
intensifies the primary radiation more than the scatter radiation
Fluorescent intensifying screens are usually mounted in pairs in rigid holders called:
cassettes
Radiographic sensitivity, in the context of the minimum detectable flaws size, depends on:
graininess of the film, the unsharpness of the image in the film, the contrast of the flaw image
on the film
In order to decrease geometric unsharpness:
, radiation should proceed from as small a focal spot as other considerations will allow
As the kilovoltage applied to the X-ray tube is raised:
X-rays of shorter wavelength and more penetrating power are produced
In order to increase the intensity of X-radiation:
the tube current should be increased
Primary radiation which strikes a film holder or cassette through a thin portion of the
specimen will cause scattering into the shadows of the adjacent thinker portions
producing an effect called:
undercut
Scattered radiation caused by any material, such as a wall or floor, on the fil side of the
specimen is referred to as:
backscattered radiation
Which of the following materials is suitable for use in vessels or pails and used to mix
processing solutions?
stainless steel
Any of the body tissues may be injured by excessive exposure to X- or gamma rays but
particularly sensitive are:
blood, lens of the eye, internal organs
X-ray expdosure may be due to:
the direct beam from the X-ray tube target, and scatter radiation arising from objects in the
direct beam
A general rule often employed for determining the kilovoltage to be used when X-raying
a part is:
the kilovoltage should be as low as other factors will permit
Verified Correct Answers.
If a film is placed in a developer solution and allowed to develop without any agitation,:
there will be a tendency for areas to affect each other
The selection of the proper type of film to be used for the X-ray examination of a particular
part depends on:
the thickness of the part, material of the specimen, voltage range of the available X-ray machine
A co-60 source has a half-life of:
5.3 years
X-ray tube current is controlled by:
the current passing through the filament
The voltage and waveform applied to the X-ray tube by a high-voltage transformer
primarily determines the:
penetrating ability
Lead foil in direct contact with X-ray film:
intensifies the primary radiation more than the scatter radiation
Fluorescent intensifying screens are usually mounted in pairs in rigid holders called:
cassettes
Radiographic sensitivity, in the context of the minimum detectable flaws size, depends on:
graininess of the film, the unsharpness of the image in the film, the contrast of the flaw image
on the film
In order to decrease geometric unsharpness:
, radiation should proceed from as small a focal spot as other considerations will allow
As the kilovoltage applied to the X-ray tube is raised:
X-rays of shorter wavelength and more penetrating power are produced
In order to increase the intensity of X-radiation:
the tube current should be increased
Primary radiation which strikes a film holder or cassette through a thin portion of the
specimen will cause scattering into the shadows of the adjacent thinker portions
producing an effect called:
undercut
Scattered radiation caused by any material, such as a wall or floor, on the fil side of the
specimen is referred to as:
backscattered radiation
Which of the following materials is suitable for use in vessels or pails and used to mix
processing solutions?
stainless steel
Any of the body tissues may be injured by excessive exposure to X- or gamma rays but
particularly sensitive are:
blood, lens of the eye, internal organs
X-ray expdosure may be due to:
the direct beam from the X-ray tube target, and scatter radiation arising from objects in the
direct beam
A general rule often employed for determining the kilovoltage to be used when X-raying
a part is:
the kilovoltage should be as low as other factors will permit
