Basic X-Ray Machine operator
Exam with Correct Answers 100%
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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 - CORRECT ANSWER-1,2,3
The oldest and largest radiologic science professional organization is the: -
CORRECT ANSWER-American Society of Radiologic Technologists (ASRT)
The organization that sets standards and prepares examinations necessary to certify
radiologic technologists and limited operators is the: - CORRECT ANSWER-
American Registry of Radiologic Technologists (ARRT)
The radiation that exits the opposite side of the patient to expose the image
receptor (IR) is called: - CORRECT ANSWER-Remnat radiation
The term used to describe radiation that is absorbed by matter is: - CORRECT
ANSWER-Attenuation
,The "unseen" image that is contained in the image receptor (IR) before it is
processed is called the: - CORRECT ANSWER-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. - CORRECT ANSWER-Scattered
The radiation that exits the x-ray tube and travels in-air to the patient is called: -
CORRECT ANSWER-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: - CORRECT
ANSWER-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: - CORRECT ANSWER-Central Ray
An exposure time of 0.02 seconds is equal to how many milliseconds? -
CORRECT ANSWER-20 msec
The number 9 squared is equal to: - CORRECT ANSWER-81
The number 4 is the square root of: - CORRECT ANSWER-16
When 62 kVp is increased by 30%, the result is approximately: - CORRECT
ANSWER-81
When the fraction 7/8 is converted to a decimal, the result is: - CORRECT
ANSWER-0.875
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,When 230% is expressed as a decimal, the result is: - CORRECT ANSWER-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 - CORRECT ANSWER-
50 mAs
X-rays have electromagnetic energy. The velocity (or speed) of this energy travels
at a speed of: - CORRECT ANSWER-186,000 miles per second
The smallest possible unit of electromagnetic energy is the: - CORRECT
ANSWER-Photon
The electrical current flowing in an x-ray tube is measured in: - CORRECT
ANSWER-Milliamperes
The force or strength of the electron flow in an electrical current is measured in: -
CORRECT ANSWER-Kilovoltage
The device used to produce the high voltage needed for x-ray production is called
the: - CORRECT ANSWER-Transformer
In radiology, 80,000 volts is converted to: - CORRECT ANSWER-80 kVp
The target and the filament in the x-ray tube are made of: - CORRECT ANSWER-
Tungsten
Electrons are made available in the filament of the x-ray tube by a process called: -
CORRECT ANSWER-Thermionic emission
, The anode in x-ray tubes rotates at a high rpm to: - CORRECT ANSWER-
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 - CORRECT ANSWER-1 and 3
Which of the following would be a common small focal spot size in an x-ray tube?
- CORRECT ANSWER-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? - CORRECT ANSWER-12 degrees
The intensity of the x-ray beam is greatest at the: - CORRECT ANSWER-Cathode
end of the beam
The penetrating power of the x-ray beam is controlled by varying the: -
CORRECT ANSWER-kVp
If the mA is doubled, the x-ray photons emitted from the tube: - CORRECT
ANSWER-Double
The x-ray tube inside the protective housing is made of: - CORRECT ANSWER-
Pyrex glass
COPYRIGHT ALL RIGHTS RESERVED ©️ 2025
Exam with Correct Answers 100%
Pass
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 - CORRECT ANSWER-1,2,3
The oldest and largest radiologic science professional organization is the: -
CORRECT ANSWER-American Society of Radiologic Technologists (ASRT)
The organization that sets standards and prepares examinations necessary to certify
radiologic technologists and limited operators is the: - CORRECT ANSWER-
American Registry of Radiologic Technologists (ARRT)
The radiation that exits the opposite side of the patient to expose the image
receptor (IR) is called: - CORRECT ANSWER-Remnat radiation
The term used to describe radiation that is absorbed by matter is: - CORRECT
ANSWER-Attenuation
,The "unseen" image that is contained in the image receptor (IR) before it is
processed is called the: - CORRECT ANSWER-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. - CORRECT ANSWER-Scattered
The radiation that exits the x-ray tube and travels in-air to the patient is called: -
CORRECT ANSWER-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: - CORRECT
ANSWER-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: - CORRECT ANSWER-Central Ray
An exposure time of 0.02 seconds is equal to how many milliseconds? -
CORRECT ANSWER-20 msec
The number 9 squared is equal to: - CORRECT ANSWER-81
The number 4 is the square root of: - CORRECT ANSWER-16
When 62 kVp is increased by 30%, the result is approximately: - CORRECT
ANSWER-81
When the fraction 7/8 is converted to a decimal, the result is: - CORRECT
ANSWER-0.875
COPYRIGHT ALL RIGHTS RESERVED ©️ 2025
,When 230% is expressed as a decimal, the result is: - CORRECT ANSWER-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 - CORRECT ANSWER-
50 mAs
X-rays have electromagnetic energy. The velocity (or speed) of this energy travels
at a speed of: - CORRECT ANSWER-186,000 miles per second
The smallest possible unit of electromagnetic energy is the: - CORRECT
ANSWER-Photon
The electrical current flowing in an x-ray tube is measured in: - CORRECT
ANSWER-Milliamperes
The force or strength of the electron flow in an electrical current is measured in: -
CORRECT ANSWER-Kilovoltage
The device used to produce the high voltage needed for x-ray production is called
the: - CORRECT ANSWER-Transformer
In radiology, 80,000 volts is converted to: - CORRECT ANSWER-80 kVp
The target and the filament in the x-ray tube are made of: - CORRECT ANSWER-
Tungsten
Electrons are made available in the filament of the x-ray tube by a process called: -
CORRECT ANSWER-Thermionic emission
, The anode in x-ray tubes rotates at a high rpm to: - CORRECT ANSWER-
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 - CORRECT ANSWER-1 and 3
Which of the following would be a common small focal spot size in an x-ray tube?
- CORRECT ANSWER-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? - CORRECT ANSWER-12 degrees
The intensity of the x-ray beam is greatest at the: - CORRECT ANSWER-Cathode
end of the beam
The penetrating power of the x-ray beam is controlled by varying the: -
CORRECT ANSWER-kVp
If the mA is doubled, the x-ray photons emitted from the tube: - CORRECT
ANSWER-Double
The x-ray tube inside the protective housing is made of: - CORRECT ANSWER-
Pyrex glass
COPYRIGHT ALL RIGHTS RESERVED ©️ 2025
