BXMO - BASIC X-RAY MACHINE OPERATOR |
276 QUESTIONS AND ANSWERS | 2026
UPDATE | WITH COMPLETE SOLUTIONS.
Which of the following would be considered a characteristic of x-rays?
1. have no mass
2. are electrically neutral
3.travel in straight lines - ANSWERS-1,2,3
The oldest and largest radiologic science professional organization is the: -
ANSWERS-American Society of Radiologic Technologists (ASRT)
The organization that sets standards and prepares examinations necessary
to certify radiologic technologists and limited operators is the: - ANSWERS-
American Registry of Radiologic Technologists (ARRT)
The radiation that exits the opposite side of the patient to expose the image
receptor (IR) is called: - ANSWERS-Remnat radiation
The term used to describe radiation that is absorbed by matter is: -
ANSWERS-Attenuation
The "unseen" image that is contained in the image receptor (IR) before it is
processed is called the: - ANSWERS-Latent image
The radiation that exits the body in all directions and causes unwanted
exposure on the image receptor (IR) as well as anyone who is in the room is
called __________ radiation. - ANSWERS-Scattered
,The radiation that exits the x-ray tube and travels in-air to the patient is
called: - ANSWERS-Primary
The boxlike device attached under the tube housing that allows the limited
operator to vary the size of the radiation field is called the: - ANSWERS-
Collimator
An invisible line in the center of the x-ray beam and perpendicular to the
long axis of the x-ray tube is called the: - ANSWERS-Central Ray
An exposure time of 0.02 seconds is equal to how many milliseconds? -
ANSWERS-20 msec
The number 9 squared is equal to: - ANSWERS-81
The number 4 is the square root of: - ANSWERS-16
When 62 kVp is increased by 30%, the result is approximately: - ANSWERS-
81
When the fraction 7/8 is converted to a decimal, the result is: - ANSWERS-
0.875
When 230% is expressed as a decimal, the result is: - ANSWERS-2.3
A radiographic image is made using 500 mA, 0.1 sec., 80 kVp, and
48-inches SID. The value of the mAs for this exposure is - ANSWERS-50 mAs
,X-rays have electromagnetic energy. The velocity (or speed) of this energy
travels at a speed of: - ANSWERS-186,000 miles per second
The smallest possible unit of electromagnetic energy is the: - ANSWERS-
Photon
The electrical current flowing in an x-ray tube is measured in: - ANSWERS-
Milliamperes
The force or strength of the electron flow in an electrical current is measured
in: - ANSWERS-Kilovoltage
The device used to produce the high voltage needed for x-ray production is
called the: - ANSWERS-Transformer
In radiology, 80,000 volts is converted to: - ANSWERS-80 kVp
The target and the filament in the x-ray tube are made of: - ANSWERS-
Tungsten
Electrons are made available in the filament of the x-ray tube by a process
called: - ANSWERS-Thermionic emission
The anode in x-ray tubes rotates at a high rpm to: - ANSWERS-Dissipate the
heat
The target in the x-ray tube is angled to affect the:
1. heat capacity
2. number of photons
, 3. sharpness of the image - ANSWERS-1 and 3
Which of the following would be a common small focal spot size in an x-ray
tube? - ANSWERS-0.6 mm
What size of target angle is required for the radiation to cover a
14-in x 17-in IR at a distance of 40 inches? - ANSWERS-12 degrees
The intensity of the x-ray beam is greatest at the: - ANSWERS-Cathode end
of the beam
The penetrating power of the x-ray beam is controlled by varying the: -
ANSWERS-kVp
If the mA is doubled, the x-ray photons emitted from the tube: - ANSWERS-
Double
The x-ray tube inside the protective housing is made of: - ANSWERS-Pyrex
glass
What material is used as the added filter material in x-ray tubes? -
ANSWERS-Aluminum
What percentage of the total energy applied to an x-ray tube target is
converted into x-rays? - ANSWERS-99%
The density in the radiographic image is primarily controlled by the: -
ANSWERS-mA
276 QUESTIONS AND ANSWERS | 2026
UPDATE | WITH COMPLETE SOLUTIONS.
Which of the following would be considered a characteristic of x-rays?
1. have no mass
2. are electrically neutral
3.travel in straight lines - ANSWERS-1,2,3
The oldest and largest radiologic science professional organization is the: -
ANSWERS-American Society of Radiologic Technologists (ASRT)
The organization that sets standards and prepares examinations necessary
to certify radiologic technologists and limited operators is the: - ANSWERS-
American Registry of Radiologic Technologists (ARRT)
The radiation that exits the opposite side of the patient to expose the image
receptor (IR) is called: - ANSWERS-Remnat radiation
The term used to describe radiation that is absorbed by matter is: -
ANSWERS-Attenuation
The "unseen" image that is contained in the image receptor (IR) before it is
processed is called the: - ANSWERS-Latent image
The radiation that exits the body in all directions and causes unwanted
exposure on the image receptor (IR) as well as anyone who is in the room is
called __________ radiation. - ANSWERS-Scattered
,The radiation that exits the x-ray tube and travels in-air to the patient is
called: - ANSWERS-Primary
The boxlike device attached under the tube housing that allows the limited
operator to vary the size of the radiation field is called the: - ANSWERS-
Collimator
An invisible line in the center of the x-ray beam and perpendicular to the
long axis of the x-ray tube is called the: - ANSWERS-Central Ray
An exposure time of 0.02 seconds is equal to how many milliseconds? -
ANSWERS-20 msec
The number 9 squared is equal to: - ANSWERS-81
The number 4 is the square root of: - ANSWERS-16
When 62 kVp is increased by 30%, the result is approximately: - ANSWERS-
81
When the fraction 7/8 is converted to a decimal, the result is: - ANSWERS-
0.875
When 230% is expressed as a decimal, the result is: - ANSWERS-2.3
A radiographic image is made using 500 mA, 0.1 sec., 80 kVp, and
48-inches SID. The value of the mAs for this exposure is - ANSWERS-50 mAs
,X-rays have electromagnetic energy. The velocity (or speed) of this energy
travels at a speed of: - ANSWERS-186,000 miles per second
The smallest possible unit of electromagnetic energy is the: - ANSWERS-
Photon
The electrical current flowing in an x-ray tube is measured in: - ANSWERS-
Milliamperes
The force or strength of the electron flow in an electrical current is measured
in: - ANSWERS-Kilovoltage
The device used to produce the high voltage needed for x-ray production is
called the: - ANSWERS-Transformer
In radiology, 80,000 volts is converted to: - ANSWERS-80 kVp
The target and the filament in the x-ray tube are made of: - ANSWERS-
Tungsten
Electrons are made available in the filament of the x-ray tube by a process
called: - ANSWERS-Thermionic emission
The anode in x-ray tubes rotates at a high rpm to: - ANSWERS-Dissipate the
heat
The target in the x-ray tube is angled to affect the:
1. heat capacity
2. number of photons
, 3. sharpness of the image - ANSWERS-1 and 3
Which of the following would be a common small focal spot size in an x-ray
tube? - ANSWERS-0.6 mm
What size of target angle is required for the radiation to cover a
14-in x 17-in IR at a distance of 40 inches? - ANSWERS-12 degrees
The intensity of the x-ray beam is greatest at the: - ANSWERS-Cathode end
of the beam
The penetrating power of the x-ray beam is controlled by varying the: -
ANSWERS-kVp
If the mA is doubled, the x-ray photons emitted from the tube: - ANSWERS-
Double
The x-ray tube inside the protective housing is made of: - ANSWERS-Pyrex
glass
What material is used as the added filter material in x-ray tubes? -
ANSWERS-Aluminum
What percentage of the total energy applied to an x-ray tube target is
converted into x-rays? - ANSWERS-99%
The density in the radiographic image is primarily controlled by the: -
ANSWERS-mA
