MASTERING THE LMRT MOCK BOARDS:
CORE CONTENT & CLINICAL SCENARIOS
FOR A+ SUCCESS – 2026/2027
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 - THE CORRECT ANSWER-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 - THE CORRECT ANSWER-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) - THE CORRECT ANSWER-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 - THE
CORRECT ANSWER-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) - THE CORRECT ANSWER-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 - THE
CORRECT ANSWER-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 - THE CORRECT ANSWER-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 - THE CORRECT ANSWER-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 - THE CORRECT ANSWER-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 - THE CORRECT ANSWER-A. 0.02 seconds
The main purpose of adding filtration to the x-ray tube is to:
A. Decrease occupational dose
B. Increase spatial resolution
C. Decrease patient dose
D. Increase image contrast - THE CORRECT ANSWER-C. Decrease
patient dose
CORE CONTENT & CLINICAL SCENARIOS
FOR A+ SUCCESS – 2026/2027
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 - THE CORRECT ANSWER-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 - THE CORRECT ANSWER-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) - THE CORRECT ANSWER-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 - THE
CORRECT ANSWER-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) - THE CORRECT ANSWER-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 - THE
CORRECT ANSWER-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 - THE CORRECT ANSWER-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 - THE CORRECT ANSWER-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 - THE CORRECT ANSWER-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 - THE CORRECT ANSWER-A. 0.02 seconds
The main purpose of adding filtration to the x-ray tube is to:
A. Decrease occupational dose
B. Increase spatial resolution
C. Decrease patient dose
D. Increase image contrast - THE CORRECT ANSWER-C. Decrease
patient dose
