MIT 103 FINAL EXAM - 159 QUESTIONS AND ANSWERS | 2026
UPDATE | WITH COMPLETE SOLUTIONS.
An anode is typically made of what material?
Tungsten
Barium
Rhodium
Molybdenum - ANSWER-Tungsten
A vacuum container that houses the x-ray tube is known as the cathode assembly.
True
False - ANSWER-False
The negative side of the x-ray tube is called the:
Magnet
Cathode
Anode
Transducer - ANSWER-Cathode
A collimator is a device that:
is used to restrict the size of the primary beam.
is connected to the bottom of the x-ray tube.
is used to adjust the size of the primary beam.
All the above - ANSWER-all the above
The variable that controls the penetrability of the beam is:
mA
1
,kVp
seconds
intensifying screens - ANSWER-kVp
How large are the pixels in a digital array?
1 cm
larger than a corn kernel
the size of a small pebble
the size of a dot - ANSWER-size of a dot
The three cardinal principles when dealing with radiation protection are all of the
following except:
distance
time
intensity
shielding - ANSWER-intensity
Who discovered x-rays in 1895?
Mother Theresa
Wilhelm Roentgen
Albert Einstein
Marie Curie - ANSWER-Wilhelm Roentgen
In Fluoroscopy, the x-ray tube is located:
above the patient
beneath the table top
2
,in the monitor (fluorescent screen)
it does not involve an x-ray tube - ANSWER-beneath the table top
Is there such a thing as "Mobile Radiography"?
Yes
No - ANSWER-yes
When an incoming electron decelerates or changes direction in response to the
nucleus of an atom, it is called what type of radiation?
Braking radiation
Characteristic radiation
Bremsstrahlung radiation
Gamma radiation - ANSWER-bremsstrahlug radiation
The atomic number of Tungsten is:
64
74
78
None of the above - ANSWER-74
During the production of characteristic radiation, the x-ray photon is released due
to a difference in what kind of energy between the shells of the atom?
Binding energy
Kinetic energy
Potential energy
There is no difference in energy between the shells - ANSWER-binding energy
3
, Medical x-rays are a significant source of manmade radiation exposure.
True
False - ANSWER-true
X-rays are classified as a carcinogen by the US government and what other
organization?
American Cancer Society
Center for Disease Control
World Health Organization
None of the above - ANSWER-world health organization
The ALARA principle is about getting your images right the first time. This can be
achieved by:
Communicate with the patient what is expected
Setting the correct technique
Positioning the patient correctly
All of the above - ANSWER-all of the above
Some responsibilities that a radiologic technologist may be required to perform on
the job are:
Trauma x-rays
Interpretation of x-rays
Ordering x-ray exams
All of the above - ANSWER-trauma xrays
4
UPDATE | WITH COMPLETE SOLUTIONS.
An anode is typically made of what material?
Tungsten
Barium
Rhodium
Molybdenum - ANSWER-Tungsten
A vacuum container that houses the x-ray tube is known as the cathode assembly.
True
False - ANSWER-False
The negative side of the x-ray tube is called the:
Magnet
Cathode
Anode
Transducer - ANSWER-Cathode
A collimator is a device that:
is used to restrict the size of the primary beam.
is connected to the bottom of the x-ray tube.
is used to adjust the size of the primary beam.
All the above - ANSWER-all the above
The variable that controls the penetrability of the beam is:
mA
1
,kVp
seconds
intensifying screens - ANSWER-kVp
How large are the pixels in a digital array?
1 cm
larger than a corn kernel
the size of a small pebble
the size of a dot - ANSWER-size of a dot
The three cardinal principles when dealing with radiation protection are all of the
following except:
distance
time
intensity
shielding - ANSWER-intensity
Who discovered x-rays in 1895?
Mother Theresa
Wilhelm Roentgen
Albert Einstein
Marie Curie - ANSWER-Wilhelm Roentgen
In Fluoroscopy, the x-ray tube is located:
above the patient
beneath the table top
2
,in the monitor (fluorescent screen)
it does not involve an x-ray tube - ANSWER-beneath the table top
Is there such a thing as "Mobile Radiography"?
Yes
No - ANSWER-yes
When an incoming electron decelerates or changes direction in response to the
nucleus of an atom, it is called what type of radiation?
Braking radiation
Characteristic radiation
Bremsstrahlung radiation
Gamma radiation - ANSWER-bremsstrahlug radiation
The atomic number of Tungsten is:
64
74
78
None of the above - ANSWER-74
During the production of characteristic radiation, the x-ray photon is released due
to a difference in what kind of energy between the shells of the atom?
Binding energy
Kinetic energy
Potential energy
There is no difference in energy between the shells - ANSWER-binding energy
3
, Medical x-rays are a significant source of manmade radiation exposure.
True
False - ANSWER-true
X-rays are classified as a carcinogen by the US government and what other
organization?
American Cancer Society
Center for Disease Control
World Health Organization
None of the above - ANSWER-world health organization
The ALARA principle is about getting your images right the first time. This can be
achieved by:
Communicate with the patient what is expected
Setting the correct technique
Positioning the patient correctly
All of the above - ANSWER-all of the above
Some responsibilities that a radiologic technologist may be required to perform on
the job are:
Trauma x-rays
Interpretation of x-rays
Ordering x-ray exams
All of the above - ANSWER-trauma xrays
4
