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BMO Basic X-Ray Machine Operator Certification
ACTUAL VERIFIED EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS LATEST UPDATE THIS
YEAR.pdf||NEWEST EXAM!!!
The oldest and largest radiologic science professional
organization is the: - Answer-American Society of
Radiologic Technologists (ASRT)
The boxlike device attached under the tube housing that
allows the operator to vary the size of the radiation field is
called the: - 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: - Answer-Central Ray
An exposure time of 0.02 seconds is equal to how many
milliseconds? - Answer-20 ms
When 62 kVp is increased by 30%, the result is
approximately: - Answer-81
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When the fraction 7/8 is converted to a decimal, the result
is: - Answer-0.875
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 -
Answer-50 mAs
X-rays have electromagnetic energy. The velocity (or
speed) of this energy travels at a speed of: - Answer-
186,000 miles per second
The smallest possible unit of electromagnetic energy is
the: - Answer-Photon
The electrical current flowing in an x-ray tube is measured
in: - Answer-Milliamperes (mA)
The force or strength of the electron flow in an electrical
current is measured in: - Answer-Kilovoltage (kVp)
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The device used to produce the high voltage needed for x-
ray production is called the: - Answer-Transformer
In radiology, 80,000 volts is converted to:
(commonly used unit) - Answer-80 kVp
The target and the filament in the x-ray tube are made of: -
Answer-Tungsten
Electrons are made available in the filament of the x-ray
tube by a process called: - Answer-Thermionic emission
The anode in the x-ray tube rotates at a high RPM for
what reason: - Answer-Dissipate the heat
The target in the x-ray tube is angled to affect the: -
Answer-heat capacity
sharpness of the image
The intensity of the x-ray beam is greatest at the: -
Answer-Cathode end of the beam
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The penetrating power of the x-ray beam is controlled by
varying the: - Answer-kVp
What are the Characteristics of x-rays? - Answer-1. have
no mass
2. are electrically neutral
3. travel in straight lines
4. X-rays produce biologic changes in tissues
5. X-rays are a form of electromagnetic energy
The organization that sets standards and prepares
examinations necessary to certify radiologic technologists
and limited operators is the: - 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? - Answer-
Remnant radiation
The term used to describe radiation that is absorbed by
matter is: - Answer-Attenuation
BMO Basic X-Ray Machine Operator Certification
ACTUAL VERIFIED EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS LATEST UPDATE THIS
YEAR.pdf||NEWEST EXAM!!!
The oldest and largest radiologic science professional
organization is the: - Answer-American Society of
Radiologic Technologists (ASRT)
The boxlike device attached under the tube housing that
allows the operator to vary the size of the radiation field is
called the: - 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: - Answer-Central Ray
An exposure time of 0.02 seconds is equal to how many
milliseconds? - Answer-20 ms
When 62 kVp is increased by 30%, the result is
approximately: - Answer-81
,2|Page
When the fraction 7/8 is converted to a decimal, the result
is: - Answer-0.875
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 -
Answer-50 mAs
X-rays have electromagnetic energy. The velocity (or
speed) of this energy travels at a speed of: - Answer-
186,000 miles per second
The smallest possible unit of electromagnetic energy is
the: - Answer-Photon
The electrical current flowing in an x-ray tube is measured
in: - Answer-Milliamperes (mA)
The force or strength of the electron flow in an electrical
current is measured in: - Answer-Kilovoltage (kVp)
,3|Page
The device used to produce the high voltage needed for x-
ray production is called the: - Answer-Transformer
In radiology, 80,000 volts is converted to:
(commonly used unit) - Answer-80 kVp
The target and the filament in the x-ray tube are made of: -
Answer-Tungsten
Electrons are made available in the filament of the x-ray
tube by a process called: - Answer-Thermionic emission
The anode in the x-ray tube rotates at a high RPM for
what reason: - Answer-Dissipate the heat
The target in the x-ray tube is angled to affect the: -
Answer-heat capacity
sharpness of the image
The intensity of the x-ray beam is greatest at the: -
Answer-Cathode end of the beam
, 4|Page
The penetrating power of the x-ray beam is controlled by
varying the: - Answer-kVp
What are the Characteristics of x-rays? - Answer-1. have
no mass
2. are electrically neutral
3. travel in straight lines
4. X-rays produce biologic changes in tissues
5. X-rays are a form of electromagnetic energy
The organization that sets standards and prepares
examinations necessary to certify radiologic technologists
and limited operators is the: - 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? - Answer-
Remnant radiation
The term used to describe radiation that is absorbed by
matter is: - Answer-Attenuation
