LRT Self-Test #2 with complete solutions
Three essential components for producing x-rays are: - source of electrons, high-
speed of electrons, sudden stopping of electrons
X-rays are similar to ___ except for their energy. - -sunlight
-tv rays
-microwaves
Much more ___ is produced than x-rays during x-ray production. - heat
Which one of the following does NOT increase amount of x-rays reaching the
receptor. - an increase in SID
To produce twice as many x-rays, one can double which of the following: - mA
200 mA at 1/10 second will produce the same quantity of x-rays as 100 mA at: -
2/10
Collimation, filters and grids ___ the amount of x-rays reaching the film. - reduce
In film imaging degree of blackness is density. In digital imaging, the
corresponds to ___ and may be seen as changes in ___ on the display monitor. -
receptor exposure, brightness
An image that has a large number of shades of gray is said to have: - -long scale
contrast
-low contrast
The factors that are best for controlling receptor exposures are: - time and mA
Which of the following terms describes inaccurate representation of size or shape
of the object? - distortion
Three essential components for producing x-rays are: - source of electrons, high-
speed of electrons, sudden stopping of electrons
X-rays are similar to ___ except for their energy. - -sunlight
-tv rays
-microwaves
Much more ___ is produced than x-rays during x-ray production. - heat
Which one of the following does NOT increase amount of x-rays reaching the
receptor. - an increase in SID
To produce twice as many x-rays, one can double which of the following: - mA
200 mA at 1/10 second will produce the same quantity of x-rays as 100 mA at: -
2/10
Collimation, filters and grids ___ the amount of x-rays reaching the film. - reduce
In film imaging degree of blackness is density. In digital imaging, the
corresponds to ___ and may be seen as changes in ___ on the display monitor. -
receptor exposure, brightness
An image that has a large number of shades of gray is said to have: - -long scale
contrast
-low contrast
The factors that are best for controlling receptor exposures are: - time and mA
Which of the following terms describes inaccurate representation of size or shape
of the object? - distortion
