Ultrasound Technician Exam Practice
Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
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1. What is the primary function of an ultrasound transducer?
A. To amplify sound waves
B. To convert electrical energy into sound waves and back
C. To measure blood pressure
D. To emit X-rays
B. To convert electrical energy into sound waves and back
The transducer both sends sound waves into the body and
receives the echoes, converting them back into electrical signals
that the machine processes into images.
2. Which of the following best describes the Doppler effect in
ultrasound imaging?
A. Reflection of sound waves off stationary structures
B. Change in frequency of sound waves due to movement of the
source or reflector
, C. Transmission of electrical signals through tissue
D. Generation of heat in tissues
B. Change in frequency of sound waves due to movement of the
source or reflector
The Doppler effect measures the frequency shift caused by
motion, such as blood flow, allowing visualization and
quantification of velocity.
3. Which mode of ultrasound imaging is primarily used for real-time
visualization of moving structures?
A. M-mode
B. B-mode
C. A-mode
D. Doppler mode
B. B-mode
B-mode (brightness mode) produces a two-dimensional image in
real time, allowing visualization of moving structures like the
heart or fetus.
4. What is the typical frequency range used in diagnostic ultrasound?
A. 20–200 Hz
B. 2–18 MHz
C. 50–100 kHz
, D. 100–500 MHz
B. 2–18 MHz
Diagnostic ultrasound operates in the megahertz range; lower
frequencies penetrate deeper but have lower resolution, while
higher frequencies provide better resolution with less depth
penetration.
5. Which factor primarily affects the depth of penetration in
ultrasound imaging?
A. Transducer frequency
B. Gain setting
C. Tissue color
D. Patient’s age
A. Transducer frequency
Lower-frequency transducers penetrate deeper tissue, while
higher frequencies provide better resolution but shallower
penetration.
6. Which type of ultrasound transducer is commonly used for
abdominal imaging?
A. Linear array
B. Curvilinear array
C. Phased array
, D. Endocavitary
B. Curvilinear array
Curvilinear transducers provide a wide field of view and
sufficient depth for abdominal organs.
7. Which imaging mode is most appropriate for evaluating cardiac
motion?
A. A-mode
B. M-mode
C. Doppler mode
D. B-mode
B. M-mode
M-mode (motion mode) records movement of structures over
time, making it ideal for evaluating cardiac wall motion and
valve function.
8. Ultrasound attenuation refers to:
A. Increase in sound wave intensity
B. Decrease in sound wave intensity as it travels through tissue
C. Change in wave frequency
D. Reflection at tissue interfaces
B. Decrease in sound wave intensity as it travels through tissue
Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary function of an ultrasound transducer?
A. To amplify sound waves
B. To convert electrical energy into sound waves and back
C. To measure blood pressure
D. To emit X-rays
B. To convert electrical energy into sound waves and back
The transducer both sends sound waves into the body and
receives the echoes, converting them back into electrical signals
that the machine processes into images.
2. Which of the following best describes the Doppler effect in
ultrasound imaging?
A. Reflection of sound waves off stationary structures
B. Change in frequency of sound waves due to movement of the
source or reflector
, C. Transmission of electrical signals through tissue
D. Generation of heat in tissues
B. Change in frequency of sound waves due to movement of the
source or reflector
The Doppler effect measures the frequency shift caused by
motion, such as blood flow, allowing visualization and
quantification of velocity.
3. Which mode of ultrasound imaging is primarily used for real-time
visualization of moving structures?
A. M-mode
B. B-mode
C. A-mode
D. Doppler mode
B. B-mode
B-mode (brightness mode) produces a two-dimensional image in
real time, allowing visualization of moving structures like the
heart or fetus.
4. What is the typical frequency range used in diagnostic ultrasound?
A. 20–200 Hz
B. 2–18 MHz
C. 50–100 kHz
, D. 100–500 MHz
B. 2–18 MHz
Diagnostic ultrasound operates in the megahertz range; lower
frequencies penetrate deeper but have lower resolution, while
higher frequencies provide better resolution with less depth
penetration.
5. Which factor primarily affects the depth of penetration in
ultrasound imaging?
A. Transducer frequency
B. Gain setting
C. Tissue color
D. Patient’s age
A. Transducer frequency
Lower-frequency transducers penetrate deeper tissue, while
higher frequencies provide better resolution but shallower
penetration.
6. Which type of ultrasound transducer is commonly used for
abdominal imaging?
A. Linear array
B. Curvilinear array
C. Phased array
, D. Endocavitary
B. Curvilinear array
Curvilinear transducers provide a wide field of view and
sufficient depth for abdominal organs.
7. Which imaging mode is most appropriate for evaluating cardiac
motion?
A. A-mode
B. M-mode
C. Doppler mode
D. B-mode
B. M-mode
M-mode (motion mode) records movement of structures over
time, making it ideal for evaluating cardiac wall motion and
valve function.
8. Ultrasound attenuation refers to:
A. Increase in sound wave intensity
B. Decrease in sound wave intensity as it travels through tissue
C. Change in wave frequency
D. Reflection at tissue interfaces
B. Decrease in sound wave intensity as it travels through tissue
