Basic X-Ray Machine Operator Test with Answers Rated A
Which of the following would be considered a character-
istic of x-rays?
1. have no mass 1,2,3
2. are electrically neutral
3. travel in straight lines
The oldest and largest radiologic science professional or-
American Society of Radiologic Technologists (ASRT)
ganization is the:
The organization that sets standards and prepares exam-
inations necessary to certify radiologic technologists and American Registry of Radiologic Technologists (ARRT)
limited operators is the:
The radiation that exits the opposite side of the patient to
Remnat radiation
expose the image receptor (IR) is called:
The term used to describe radiation that is absorbed by
Attenuation
matter is:
The "unseen" image that is contained in the image recep-
Latent image
tor (IR) before it is processed is called the:
The radiation that exits the body in all directions and
causes unwanted exposure on the image receptor (IR) as
Scattered
well as anyone who is in the room is called
radiation.
The radiation that exits the x-ray tube and travels in-air to
Primary
the patient is called:
The boxlike device attached under the tube housing that
allows the limited operator to vary the size of the radiation Collimator
field is called the:
An invisible line in the center of the x-ray beam and per-
Central Ray
pendicular to the long axis of the x-ray tube is called the:
20 msec
, Basic X-Ray Machine Operator Test with Answers Rated A
An exposure time of 0.02 seconds is equal to how many
milliseconds?
The number 9 squared is equal to: 81
The number 4 is the square root of: 16
When 62 kVp is increased by 30%, the result is approxi-
81
mately:
When the fraction 7/8 is converted to a decimal, the result
0.875
is:
When 230% is expressed as a decimal, the result is: 2.3
A radiographic image is made using 500 mA, 0.1 sec., 80
kVp, and 50 mAs
48-inches SID. The value of the mAs for this exposure is
X- rays have electromagnetic energy. The velocity (or
186,000 miles per second
speed) of this energy travels at a speed of:
The smallest possible unit of electromagnetic energy is
Photon
the:
The electrical current flowing in an x-ray tube is measured
Milliamperes
in:
The force or strength of the electron flow in an electrical
Kilovoltage
current is measured in:
The device used to produce the high voltage needed for
Transformer
x-ray production is called the:
In radiology, 80,000 volts is converted to: 80 kVp
The target and the filament in the x-ray tube are made of: Tungsten
Electrons are made available in the filament of the x-ray
Thermionic emission
tube by a process called:
The anode in x-ray tubes rotates at a high rpm to: Dissipate the heat
, Basic X-Ray Machine Operator Test with Answers Rated A
The target in the x-ray tube is angled to attect the:
1. heat capacity
1 and 3
2. number of photons
3. sharpness of the image
Which of the following would be a common small focal
0.6 mm
spot size in an x-ray tube?
What size of target angle is required for the radiation to
cover a 12 degrees
14-in x 17-in IR at a distance of 40 inches?
The intensity of the x-ray beam is greatest at the: Cathode end of the beam
The penetrating power of the x-ray beam is controlled by
kVp
varying the:
If the mA is doubled, the x-ray photons emitted from the
Double
tube:
The x-ray tube inside the protective housing is made of: Pyrex glass
What material is used as the added filter material in x-ray
Aluminum
tubes?
What percentage of the total energy applied to an x-ray
99%
tube target is converted into x-rays?
The density in the radiographic image is primarily con-
mA
trolled by the:
Which of the following supplies and controls the heat re-
quired by the x-ray tube filament for thermionic emission Filament circuit
of electrons?
Which of the following is controlled directly on the x-ray
control panel? 1 and 3
1. mA
Which of the following would be considered a character-
istic of x-rays?
1. have no mass 1,2,3
2. are electrically neutral
3. travel in straight lines
The oldest and largest radiologic science professional or-
American Society of Radiologic Technologists (ASRT)
ganization is the:
The organization that sets standards and prepares exam-
inations necessary to certify radiologic technologists and American Registry of Radiologic Technologists (ARRT)
limited operators is the:
The radiation that exits the opposite side of the patient to
Remnat radiation
expose the image receptor (IR) is called:
The term used to describe radiation that is absorbed by
Attenuation
matter is:
The "unseen" image that is contained in the image recep-
Latent image
tor (IR) before it is processed is called the:
The radiation that exits the body in all directions and
causes unwanted exposure on the image receptor (IR) as
Scattered
well as anyone who is in the room is called
radiation.
The radiation that exits the x-ray tube and travels in-air to
Primary
the patient is called:
The boxlike device attached under the tube housing that
allows the limited operator to vary the size of the radiation Collimator
field is called the:
An invisible line in the center of the x-ray beam and per-
Central Ray
pendicular to the long axis of the x-ray tube is called the:
20 msec
, Basic X-Ray Machine Operator Test with Answers Rated A
An exposure time of 0.02 seconds is equal to how many
milliseconds?
The number 9 squared is equal to: 81
The number 4 is the square root of: 16
When 62 kVp is increased by 30%, the result is approxi-
81
mately:
When the fraction 7/8 is converted to a decimal, the result
0.875
is:
When 230% is expressed as a decimal, the result is: 2.3
A radiographic image is made using 500 mA, 0.1 sec., 80
kVp, and 50 mAs
48-inches SID. The value of the mAs for this exposure is
X- rays have electromagnetic energy. The velocity (or
186,000 miles per second
speed) of this energy travels at a speed of:
The smallest possible unit of electromagnetic energy is
Photon
the:
The electrical current flowing in an x-ray tube is measured
Milliamperes
in:
The force or strength of the electron flow in an electrical
Kilovoltage
current is measured in:
The device used to produce the high voltage needed for
Transformer
x-ray production is called the:
In radiology, 80,000 volts is converted to: 80 kVp
The target and the filament in the x-ray tube are made of: Tungsten
Electrons are made available in the filament of the x-ray
Thermionic emission
tube by a process called:
The anode in x-ray tubes rotates at a high rpm to: Dissipate the heat
, Basic X-Ray Machine Operator Test with Answers Rated A
The target in the x-ray tube is angled to attect the:
1. heat capacity
1 and 3
2. number of photons
3. sharpness of the image
Which of the following would be a common small focal
0.6 mm
spot size in an x-ray tube?
What size of target angle is required for the radiation to
cover a 12 degrees
14-in x 17-in IR at a distance of 40 inches?
The intensity of the x-ray beam is greatest at the: Cathode end of the beam
The penetrating power of the x-ray beam is controlled by
kVp
varying the:
If the mA is doubled, the x-ray photons emitted from the
Double
tube:
The x-ray tube inside the protective housing is made of: Pyrex glass
What material is used as the added filter material in x-ray
Aluminum
tubes?
What percentage of the total energy applied to an x-ray
99%
tube target is converted into x-rays?
The density in the radiographic image is primarily con-
mA
trolled by the:
Which of the following supplies and controls the heat re-
quired by the x-ray tube filament for thermionic emission Filament circuit
of electrons?
Which of the following is controlled directly on the x-ray
control panel? 1 and 3
1. mA
