GXMO PRACTICE TEST QUESTIONS
AND ANSWERS (GRADED A+)
X-rays were discovered by... - ANSWER-Roentgen in 1895 in Germany
The Joint Review Committee on Education in Radiologic Technology (JRCERT) is the...
- ANSWER-organization that accredits schools for radiologic technologists
The largest professional organization for radiologic technologists is the... - ANSWER-
ASRT
The x-ray room has an area that protects the limited operator from scatter radiation and
is called... - ANSWER-the control booth
Mechanism on the x-ray tube that provides a stop in a specific location - ANSWER-
detent
The image that has been exposed on the IR but has not yet been processed is called -
ANSWER-latent image
The absorption of x-rays by matter is called - ANSWER-attenuation
The IR system consists of.. - ANSWER-cassette and phosphor plate
A type of filmless system that produces digital images is called - ANSWER-computed
radiography (CR)
The source of x-rays is - ANSWER-x-ray tube
Unwanted image exposure that is caused by scatter x-rays - ANSWER-radiation fog
Surrounds the x-ray tube and is lined with lead - ANSWER-tube housing
Opening where the x-rays exit the tube - ANSWER-tube port
X-rays exit the tube port via - ANSWER-the tube window
What is the name of the radiation that exits the patient? - ANSWER-remnant radiation
The x-ray beam that leaves the tube is called - ANSWER-primary radiation
Primary x-ray beams that leave the body and travel in all directions is called -
ANSWER-scatter radiation
, When a neutral atom gains or loses an electron, the atom is said to be... - ANSWER-
ionized
The purpose of the rotating anode is - ANSWER-to increase heat capacity of the anode
Image sharpness is determined by - ANSWER-the size of the effective focal spot
Above 70 kVp, what percentage of photons are created by bremstrahlung? - ANSWER-
85%
The amount of detail seen in the x-ray image is referred to as - ANSWER-spatial
resolution
What is the term for the heating of an element to a hot temperature and the expanding
of electrons in an atom - ANSWER-thermionic emission
X-rays consist of what type of energy - ANSWER-electromagnetic energy
X-rays with greater energy have what size wavelengths - ANSWER-shorter
The smallest possible unit of electromagnetic energy is the - ANSWER-photon
The common unit of measure for the potential difference across an x-ray tube is the -
ANSWER-ohm
The purpose of a transformer is to - ANSWER-increase or decrease voltage
When an atom gains or loses an electron it is called an - ANSWER-ion
One of the most important elements in radiography that is used to create x-rays is -
ANSWER-tungsten
Roentgen discovered x-rays while working with a - ANSWER-crookes tube
Free electrons for x-ray production come from the - ANSWER-filament
The creation of the space charge in the x-ray tube produces - ANSWER-thermionic
emission
The majority of photons in the x-ray beam are created by which process? - ANSWER-
Bremsstrahlung interactions
More than 99% of the energy of the electron stream is converted to - ANSWER-heat
AND ANSWERS (GRADED A+)
X-rays were discovered by... - ANSWER-Roentgen in 1895 in Germany
The Joint Review Committee on Education in Radiologic Technology (JRCERT) is the...
- ANSWER-organization that accredits schools for radiologic technologists
The largest professional organization for radiologic technologists is the... - ANSWER-
ASRT
The x-ray room has an area that protects the limited operator from scatter radiation and
is called... - ANSWER-the control booth
Mechanism on the x-ray tube that provides a stop in a specific location - ANSWER-
detent
The image that has been exposed on the IR but has not yet been processed is called -
ANSWER-latent image
The absorption of x-rays by matter is called - ANSWER-attenuation
The IR system consists of.. - ANSWER-cassette and phosphor plate
A type of filmless system that produces digital images is called - ANSWER-computed
radiography (CR)
The source of x-rays is - ANSWER-x-ray tube
Unwanted image exposure that is caused by scatter x-rays - ANSWER-radiation fog
Surrounds the x-ray tube and is lined with lead - ANSWER-tube housing
Opening where the x-rays exit the tube - ANSWER-tube port
X-rays exit the tube port via - ANSWER-the tube window
What is the name of the radiation that exits the patient? - ANSWER-remnant radiation
The x-ray beam that leaves the tube is called - ANSWER-primary radiation
Primary x-ray beams that leave the body and travel in all directions is called -
ANSWER-scatter radiation
, When a neutral atom gains or loses an electron, the atom is said to be... - ANSWER-
ionized
The purpose of the rotating anode is - ANSWER-to increase heat capacity of the anode
Image sharpness is determined by - ANSWER-the size of the effective focal spot
Above 70 kVp, what percentage of photons are created by bremstrahlung? - ANSWER-
85%
The amount of detail seen in the x-ray image is referred to as - ANSWER-spatial
resolution
What is the term for the heating of an element to a hot temperature and the expanding
of electrons in an atom - ANSWER-thermionic emission
X-rays consist of what type of energy - ANSWER-electromagnetic energy
X-rays with greater energy have what size wavelengths - ANSWER-shorter
The smallest possible unit of electromagnetic energy is the - ANSWER-photon
The common unit of measure for the potential difference across an x-ray tube is the -
ANSWER-ohm
The purpose of a transformer is to - ANSWER-increase or decrease voltage
When an atom gains or loses an electron it is called an - ANSWER-ion
One of the most important elements in radiography that is used to create x-rays is -
ANSWER-tungsten
Roentgen discovered x-rays while working with a - ANSWER-crookes tube
Free electrons for x-ray production come from the - ANSWER-filament
The creation of the space charge in the x-ray tube produces - ANSWER-thermionic
emission
The majority of photons in the x-ray beam are created by which process? - ANSWER-
Bremsstrahlung interactions
More than 99% of the energy of the electron stream is converted to - ANSWER-heat
