Basic X-Ray Machine operator verified questions with detailed
solutions A+ Grade
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
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
What material is used as the added filter material in x-ray tubes?
- correct answer Aluminum
What percentage of the total energy applied to an x-ray tube target is converted into x-rays?
- correct answer 99%
The density in the radiographic image is primarily controlled by the:
- correct answer mA
Which of the following supplies and controls the heat required by the x-ray tube filament for thermionic
emission of electrons?
- correct answer Filament circuit
solutions A+ Grade
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
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
What material is used as the added filter material in x-ray tubes?
- correct answer Aluminum
What percentage of the total energy applied to an x-ray tube target is converted into x-rays?
- correct answer 99%
The density in the radiographic image is primarily controlled by the:
- correct answer mA
Which of the following supplies and controls the heat required by the x-ray tube filament for thermionic
emission of electrons?
- correct answer Filament circuit
