LMRT Mock Board Exam Prep questions with answers
Increasing diagnostic filtration from 2.5 mm to 3.5 mm will have what effect on x-ray
beam intensity?
A. Increase in x-ray beam intensity
B. Decrease in x-ray beam intensity
C. No change in x-ray beam intensity - CORRECT ANSWERS ✔✔B. Decrease in x-
ray beam intensity
What is the minimum requirement for the evaluation of holes and cracks of
shielding accessories?
A. Annually
B. Bi-annually
C. Semi-annually
D. Monthly - CORRECT ANSWERS ✔✔A. Annually
Which of the listed x-ray generator types has the least amount of voltage ripple?
A. Three-phase, twelve pulse
B. Single-phase, half-wave
C. Single-phase, full-wave
D. Three-phase, six-pulse - CORRECT ANSWERS ✔✔A. Three-phase, twelve pulse
,An x-ray of the sternum uses a 72-inch source-to-image distance (SID) and a 10-inch
by 12-inch image receptor. If the image of the sternum measures 9 cm and the actual
sternum measures 6 cm, what is the magnification factor?
A. 54
B. 1.5
C. 8
D. 0.67 - CORRECT ANSWERS ✔✔B. 1.5
A Picture Archiving and Communication System (PACS) network is used to connect
which three of the following? (Select three)
I. Radiologist reading station
II. Imaging Equipment
III. PACS servers
IV. Electronic Medical Record (EMR) - CORRECT ANSWERS ✔✔I, II and III
Federal law on radiation protection requires which two of the following? (Select two)
I. Signage for radiation areas
II. Maintaining personnel dose records
III. Publication of personnel dose records
IV. Dosimeters for all employees exposed to radiation - CORRECT ANSWERS ✔✔I
and II
,Because of the binding energy of a K-shell tungsten atom, the minimum electron
energy necessary to create a characteristic photon is:
A. 80 kiloelectron volts (keV)
B. 73 kiloelectron volts (keV)
C. 69.5 kiloelectron volts (keV)
D. 55 kiloectron volts (keV) - CORRECT ANSWERS ✔✔C. 69.5 kiloelectron volts
(keV)
Walls that are considered to be secondary barriers should be:
A. 0.25 mm of lead thickness and be 1.5 meters (5 feet) tall
B. 0.4 mm of lead thickness and be 1.5 meters (5 feet) tall
C. 0.8 mm of lead thickness and be 2.1 meters (7 feet) tall
D. 1.6 mm of lead thickness and be 2.1 meters (7 feet) tall - CORRECT ANSWERS
✔✔C. 0.8 mm of lead thickness and be 2.1 meters (7 feet) tall
The Heimlich maneuver (abdominal thrust) is used for someone who:
A. Has dyspnea while lying supine
B. Is choking
C. Is in cardiac arrest
D. Has a nosebleed - CORRECT ANSWERS ✔✔B. Is choking
, Expectant mothers who are technologists should wear a fetal dosimeter at what
location?
A. At the collar
B. At the thyroid
C. At the waist
D. Outside the apron - CORRECT ANSWERS ✔✔C. At the waist
Diabetes mellitus is a metabolic disease resulting from a chronic disorder of:
A. Fat metabolism
B. Bile production
C. Renin production
D. Blood glucose metabolism - CORRECT ANSWERS ✔✔D. Blood glucose
metabolism
If the generator you are using has 1000 milliampere (mA) capacity and your
technique is 20 milliampere-seconds (mAs) at 74 kilovoltage peak (kVp), what is the
shortest exposure time possible?
A. 0.02 seconds
B. 0.2 seconds
C. 50 seconds
D. 5.0 seconds - CORRECT ANSWERS ✔✔A. 0.02 seconds
Increasing diagnostic filtration from 2.5 mm to 3.5 mm will have what effect on x-ray
beam intensity?
A. Increase in x-ray beam intensity
B. Decrease in x-ray beam intensity
C. No change in x-ray beam intensity - CORRECT ANSWERS ✔✔B. Decrease in x-
ray beam intensity
What is the minimum requirement for the evaluation of holes and cracks of
shielding accessories?
A. Annually
B. Bi-annually
C. Semi-annually
D. Monthly - CORRECT ANSWERS ✔✔A. Annually
Which of the listed x-ray generator types has the least amount of voltage ripple?
A. Three-phase, twelve pulse
B. Single-phase, half-wave
C. Single-phase, full-wave
D. Three-phase, six-pulse - CORRECT ANSWERS ✔✔A. Three-phase, twelve pulse
,An x-ray of the sternum uses a 72-inch source-to-image distance (SID) and a 10-inch
by 12-inch image receptor. If the image of the sternum measures 9 cm and the actual
sternum measures 6 cm, what is the magnification factor?
A. 54
B. 1.5
C. 8
D. 0.67 - CORRECT ANSWERS ✔✔B. 1.5
A Picture Archiving and Communication System (PACS) network is used to connect
which three of the following? (Select three)
I. Radiologist reading station
II. Imaging Equipment
III. PACS servers
IV. Electronic Medical Record (EMR) - CORRECT ANSWERS ✔✔I, II and III
Federal law on radiation protection requires which two of the following? (Select two)
I. Signage for radiation areas
II. Maintaining personnel dose records
III. Publication of personnel dose records
IV. Dosimeters for all employees exposed to radiation - CORRECT ANSWERS ✔✔I
and II
,Because of the binding energy of a K-shell tungsten atom, the minimum electron
energy necessary to create a characteristic photon is:
A. 80 kiloelectron volts (keV)
B. 73 kiloelectron volts (keV)
C. 69.5 kiloelectron volts (keV)
D. 55 kiloectron volts (keV) - CORRECT ANSWERS ✔✔C. 69.5 kiloelectron volts
(keV)
Walls that are considered to be secondary barriers should be:
A. 0.25 mm of lead thickness and be 1.5 meters (5 feet) tall
B. 0.4 mm of lead thickness and be 1.5 meters (5 feet) tall
C. 0.8 mm of lead thickness and be 2.1 meters (7 feet) tall
D. 1.6 mm of lead thickness and be 2.1 meters (7 feet) tall - CORRECT ANSWERS
✔✔C. 0.8 mm of lead thickness and be 2.1 meters (7 feet) tall
The Heimlich maneuver (abdominal thrust) is used for someone who:
A. Has dyspnea while lying supine
B. Is choking
C. Is in cardiac arrest
D. Has a nosebleed - CORRECT ANSWERS ✔✔B. Is choking
, Expectant mothers who are technologists should wear a fetal dosimeter at what
location?
A. At the collar
B. At the thyroid
C. At the waist
D. Outside the apron - CORRECT ANSWERS ✔✔C. At the waist
Diabetes mellitus is a metabolic disease resulting from a chronic disorder of:
A. Fat metabolism
B. Bile production
C. Renin production
D. Blood glucose metabolism - CORRECT ANSWERS ✔✔D. Blood glucose
metabolism
If the generator you are using has 1000 milliampere (mA) capacity and your
technique is 20 milliampere-seconds (mAs) at 74 kilovoltage peak (kVp), what is the
shortest exposure time possible?
A. 0.02 seconds
B. 0.2 seconds
C. 50 seconds
D. 5.0 seconds - CORRECT ANSWERS ✔✔A. 0.02 seconds
