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ARDMS SPI EXAM LATEST EXAM | ALL
QUESTIONS AND CORRECT ANSWERS
(GRADED A+) | VERIFIED ANSWERS | LATEST
VERSION
When the direction of the wave propagation is parallel to the particle motion of the medium, the wave being transmitted is
called a:
- surface wave
- longitudinal wave
- transverse wave
- non-linear sound
the CORRECT ANSWER is B) longitudinal wave
If the sound beam attenuated 6 dB, what will happen to the overall intensity?
- Quadrupled
- Doubled
- Halved
- Quartered
the CORRECT ANSWER is D) Quartered
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Frequency increased from 3 MHz to 6 MHz, what will happen to wavelength?
- Doubled
- Quadrupled
- Halved
- Quartered
the CORRECT ANSWER is C) Halved
Intensity is equal to:
- power/area
- propagation speed/frequency
- density x propagation speed
- area/power
the CORRECT ANSWER is A) power/area
What is important when selecting a transducer frequency?
- Depth
- Power
- Velocity
- Propagation speed
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the CORRECT ANSWER is A) Depth
Frequency is a factor in:
- impedance
- tissue attenuation
- propagation speed
- tissue density
the CORRECT ANSWER is B) tissue attenuation
Which medium interface will have the greatest sound transmission?
- Soft tissue to water
- Organ to organ
- Bone to organ
- Lung to soft tissue
the CORRECT ANSWER is B) Organ to organ
If there is a small impedance mismatch between two mediums, what will result?
- There will be a small reflection
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- There will be a large reflection
- All sound will transmit
- No sound will transmit
the CORRECT ANSWER is A) There will be a small reflection
Which property of sound is measured in Rayls?
- Intensity
- Impedance
- Density
- Propagation speed
the CORRECT ANSWER is B) Impedance
If sound energy is reduced by 50%, how many decibels were lost?
- 6 dB
- 3 dB
- 0 dB
- 10 dB
the CORRECT ANSWER is B) 3 dB