ARDMS SPI EXAM QUESTIONS
(SET 2025) |GUARANTEED
ACCURATE ANSWERS |VERIFIED
When the direction of the wave propagation is parallel to the particle
motion of the medium, the wave being transmitted is called a:
A) surface wave.
B) longitudinal wave.
C) transverse wave.
D) non-linear sound. - Accurate ✔✔✔ ......B) longitudinal wave
If the sound beam attenuated 6 dB, what will happen to the overall
intensity?
A) Quadrupled
B) Doubled
C) Halved
D) Quartered - Accurate ✔✔✔ ......D) Quartered
Frequency increased from 3 MHz to 6 MHz, what will happen to
wavelength?
A) Doubled
B) Quadrupled
C) Halved
,D) Quartered - Accurate ✔✔✔ ......C) Halved
Intensity is equal to:
A) power/area
B) propagation speed/frequency
C) density x propagation speed
D) area/power - Accurate ✔✔✔ ......A) power/area
5. What is important when selecting a transducer frequency?
A) Depth
B) Power
C) Velocity
D) Propagation speed - Accurate ✔✔✔ ......A) Depth
6. Frequency is a factor in:
A) impedance
B) tissue attenuation
C) propagation speed
D) tissue density - Accurate ✔✔✔ ......B) tissue attenuation
7. Which medium interface will have the greatest sound transmission?
A) Soft tissue to water
,B) Organ to organ
C) Bone to organ
D) Lung to soft tissue - Accurate ✔✔✔ ......B) Organ to organ
8. If there is a small impedance mismatch between two mediums, what
will result?
A) There will be a small reflection
B) There will be a large reflection
C) All sound will transmit
D) No sound will transmit - Accurate ✔✔✔ ......A) There will be a small
reflection
9. Which property of sound is measured in Rayls?
A) Intensity
B) Impedance
C) Density
D) Propagation speed - Accurate ✔✔✔ ......B) Impedance
10. If sound energy is reduced by 50%, how many decibels were lost?
A) 6 dB
B) 3 dB
C) 0 dB
D) 10 dB - Accurate ✔✔✔ ......B) 3 dB
, 11. To improve the quality of the motion during an electrocardiogram,
which resolution should be improved?
A) Transverse resolution
B) Lateral resolution
C) Axial resolution
D) Temporal resolution - Accurate ✔✔✔ ......D) Temporal resolution
12. Ultrasound frequency begins at:
A) 2 Hz
B) 20 Hz
C) 20 Mhz
D) 20 kHz - Accurate ✔✔✔ ......D) 20 kHz
13. An increase in which property will increase the propagation speed?
A) Period
B) Bulk modulus
C) Frequency
D) Intensity - Accurate ✔✔✔ ......B) Bulk modulus (stiffness)
14. A technician is using a 6 MHz transducer at a depth of 4cm, what is
the attenuation coefficient?
A) 1/2 dB/cm
(SET 2025) |GUARANTEED
ACCURATE ANSWERS |VERIFIED
When the direction of the wave propagation is parallel to the particle
motion of the medium, the wave being transmitted is called a:
A) surface wave.
B) longitudinal wave.
C) transverse wave.
D) non-linear sound. - Accurate ✔✔✔ ......B) longitudinal wave
If the sound beam attenuated 6 dB, what will happen to the overall
intensity?
A) Quadrupled
B) Doubled
C) Halved
D) Quartered - Accurate ✔✔✔ ......D) Quartered
Frequency increased from 3 MHz to 6 MHz, what will happen to
wavelength?
A) Doubled
B) Quadrupled
C) Halved
,D) Quartered - Accurate ✔✔✔ ......C) Halved
Intensity is equal to:
A) power/area
B) propagation speed/frequency
C) density x propagation speed
D) area/power - Accurate ✔✔✔ ......A) power/area
5. What is important when selecting a transducer frequency?
A) Depth
B) Power
C) Velocity
D) Propagation speed - Accurate ✔✔✔ ......A) Depth
6. Frequency is a factor in:
A) impedance
B) tissue attenuation
C) propagation speed
D) tissue density - Accurate ✔✔✔ ......B) tissue attenuation
7. Which medium interface will have the greatest sound transmission?
A) Soft tissue to water
,B) Organ to organ
C) Bone to organ
D) Lung to soft tissue - Accurate ✔✔✔ ......B) Organ to organ
8. If there is a small impedance mismatch between two mediums, what
will result?
A) There will be a small reflection
B) There will be a large reflection
C) All sound will transmit
D) No sound will transmit - Accurate ✔✔✔ ......A) There will be a small
reflection
9. Which property of sound is measured in Rayls?
A) Intensity
B) Impedance
C) Density
D) Propagation speed - Accurate ✔✔✔ ......B) Impedance
10. If sound energy is reduced by 50%, how many decibels were lost?
A) 6 dB
B) 3 dB
C) 0 dB
D) 10 dB - Accurate ✔✔✔ ......B) 3 dB
, 11. To improve the quality of the motion during an electrocardiogram,
which resolution should be improved?
A) Transverse resolution
B) Lateral resolution
C) Axial resolution
D) Temporal resolution - Accurate ✔✔✔ ......D) Temporal resolution
12. Ultrasound frequency begins at:
A) 2 Hz
B) 20 Hz
C) 20 Mhz
D) 20 kHz - Accurate ✔✔✔ ......D) 20 kHz
13. An increase in which property will increase the propagation speed?
A) Period
B) Bulk modulus
C) Frequency
D) Intensity - Accurate ✔✔✔ ......B) Bulk modulus (stiffness)
14. A technician is using a 6 MHz transducer at a depth of 4cm, what is
the attenuation coefficient?
A) 1/2 dB/cm
