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GXMO PRACTICE TEST ACTUAL EXAM WITH CORRECT ACTUAL QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST 2025 ALREADY GRADED A+
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When a body part is thicker, scatter radiation will be - ANSWERS-greater
When a body part is dense, the scatter radiation will be - ANSWERS-less
The greatest source of scatter radiation is - ANSWERS-the patient In diagnostic imaging, the majority of scatter radiation will be fromwhat interaction with matter? - ANSWERS-the compton effect
Mechanism on the x-ray tube that provides a stop in a specificlocation - ANSWERS-detent
The image that has been exposed on the IR but has not yet beenprocessed is called - ANSWERS-latent image
The absorption of x-rays by matter is called - ANSWERS-attenuation The IR system consists of.. - ANSWERS-cassette and phosphor plate A type of filmless system that produces digital images is called -ANSWERS-computed radiography (CR)
The source of x-rays is - ANSWERS-x-ray tube Unwanted image exposure that is caused by scatter x-rays -ANSWERS-radiation fog
Surrounds the x-ray tube and is lined with lead - ANSWERS-tubehousing
Primary x-ray beams that leave the body and travel in all directions iscalled - ANSWERS-scatter radiation
When a neutral atom gains or loses an electron, the atom is said tobe... - ANSWERS-ionized
X-rays consist of what type of energy - ANSWERS-electromagneticenergy
X-rays with greater energy have what size wavelengths - ANSWERS-shorter
The smallest possible unit of electromagnetic energy is the -ANSWERS-photon
The common unit of measure for the potential difference across an x-ray tube is the - ANSWERS-ohm
The purpose of a transformer is to - ANSWERS-increase or decreasevoltage
When an atom gains or loses an electron it is called an - ANSWERS-ion
One of the most important elements in radiography that is used tocreate x-rays is - ANSWERS-tungsten
Roentgen discovered x-rays while working with a - ANSWERS-crookestube
Free electrons for x-ray production come from the - ANSWERS-filament
The creation of the space charge in the x-ray tube produces -ANSWERS-thermionic emission
The majority of photons in the x-ray beam are created by whichprocess? - ANSWERS-Bremsstrahlung interactions
More than 99% of the energy of the electron stream is converted to -ANSWERS-heat
The high speed rotation of the anode enables - ANSWERS-greaterdissipation of heat from technical factors
Above 70 kVp, what percentage of photons are created bybremstrahlung? - ANSWERS-85%
The amount of detail seen in the x-ray image is referred to as -ANSWERS-spatial resolution
What is the term for the heating of an element to a hot temperatureand the expanding of electrons in an atom - ANSWERS-thermionic emission The primary purpose of the filament circuit is to - ANSWERS-heat thex-ray filament for thermionic emission
AEC automatically varies the - ANSWERS-exposure time The primary controller of density is - ANSWERS-mAs The difference in density between two adjacent portions of the imageis called - ANSWERS-contrast
The primary factor for controlling contrast and penetration is -ANSWERS-kVp
Generalized unwanted exposure on the image is called - ANSWERS-fog A decrease in SID will result in .............magnification - ANSWERS-increased
A misrepresentation of the size or shape of structure is called -ANSWERS-distortion
The fuzzy unsharpness at the edges of body parts is called - ANSWERS-penumbra
A term used for a grainy image is - ANSWERS-quantum noise ormottle
What effects the quality of the x-ray beam - ANSWERS-kVp If the mAs is doubled, the dose to the patient is - ANSWERS-doubled According to the inverse square law, if the SID is doubled, theintensity of the x-rays will - ANSWERS-decrease to one-fourth
A control that adjusts the density of an image - ANSWERS-windowlevel
A series of thousands of small squares that make up the viewingmonitor - ANSWERS-matrix
A control that adjusts the contrast in an image - ANSWERS-windowwidth
Total absorption of an x-ray photon by the atom of the body part iscalled - ANSWERS-coherent scattering
A grid is used when a body part measures more than - ANSWERS-10-12 cm
A technique chart provides what information - ANSWERS-mAkVp SID Manual technique charts are based on patient measurementsexpressed in - ANSWERS-thickness, in cm
What factors need to be considered when selecting an mA station -ANSWERS-exposure time focal spot size Why should the small focal spot be used as much as possible -ANSWERS-it provides greater detail
By how much does the mAs need to be changed to see a visible shiftin density - ANSWERS-30%
The international system of units (SI) for measuring the absorbeddose in the patient is the - ANSWERS-gray (-t) (Gy-t)
The SI measurement for radiation exposure in the air is - ANSWERS-gray-a (Gy-a)
The SI unit used to report equivalent dose is - ANSWERS-Sievert Sv Short-term effects of radiation are typically observed within -ANSWERS-3 months
