Edelman SPI Comprehensive Exam /Edelman SPI Exam Preparation/Edelman SPI Practice
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Sound waves are:
electrical
mechanical, transverse
spectral
longitudinal, mechanical - (ANSWER)longitudinal, mechanical
The speed of US in soft tissue is closest to:
1,540 km/sec
1.54 km/msec
1,500 m/s
1,540 mm/sec - (ANSWER)1,500 m/s
The frequency closest to the lower limit of US is:
19,000 kHz
10,000 MHz
20,000 msec
15,000 Hz - (ANSWER)15,000 Hz
Which is not an acoustic variable?
density
pressure
distance
intensity - (ANSWER)intensity
,Edelman SPI Comprehensive Exam /Edelman SPI Exam Preparation/Edelman SPI Practice
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The effects of soft tissue on US are called:
acoustic proliferation properties
dynamic effects
acoustic propagation properties
biologic effects - (ANSWER)acoustic propagation properties
All of the following are true EXCEPT:
Two waves with identical frequencies must interfere constructively
Constructive interference is associated with waves that are in-phase
Out-of-phase waves interfere destructively
Waves of different frequencies may exhibit both constructive and destructive interference at different
times - (ANSWER)Two waves with identical frequencies must interfere constructively
Put in decreasing order:
deca
deci
micro
centi - (ANSWER)deca, deci, centi, micro
____ is the time to complete one cycle.
pulse duration
pulse period
,Edelman SPI Comprehensive Exam /Edelman SPI Exam Preparation/Edelman SPI Practice
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period
duration period - (ANSWER)period
Which of the following sound waves is ultrasonic and least useful in diagnostic imaging?
30KHz
8 MHz
8,000 Hz
3,000 kHz
15 Hz - (ANSWER)30 KHz
What is the frequency of a wave with 1 msec period?
10,000 Hz
1,000 kHz
1 kHz
1MHz - (ANSWER)1 kHz
____ is the distance covered by one cycle
pulse length
wavelength
cycle distance
cycle duration - (ANSWER)wavelength
Which of the following is determined by the source and the medium?
, Edelman SPI Comprehensive Exam /Edelman SPI Exam Preparation/Edelman SPI Practice
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frequency
period
propagation speed
range resolution - (ANSWER)range resolution
propagation speed = ______ * wavelength
pulse duration
period
number of cycles in the pulse
frequency - (ANSWER)frequency
As a result of _____ the propagation speed increases
increasing stiffness and increasing density
increasing stiffness and increasing elasticity
decreasing compressibility and decreasing density
decreasing stiffness and decreasing density - (ANSWER)decreasing compressibility and decreasing
density
Put in decreasing order of propagation speed
gas
liquid
solid - (ANSWER)solid, liquid, gas
If the frequency of US is increased from 0.77 MHz to 1.54 MHz, what happens to the wavelength?
Exam With Questions And Correct Answers| Brand New Version!
Sound waves are:
electrical
mechanical, transverse
spectral
longitudinal, mechanical - (ANSWER)longitudinal, mechanical
The speed of US in soft tissue is closest to:
1,540 km/sec
1.54 km/msec
1,500 m/s
1,540 mm/sec - (ANSWER)1,500 m/s
The frequency closest to the lower limit of US is:
19,000 kHz
10,000 MHz
20,000 msec
15,000 Hz - (ANSWER)15,000 Hz
Which is not an acoustic variable?
density
pressure
distance
intensity - (ANSWER)intensity
,Edelman SPI Comprehensive Exam /Edelman SPI Exam Preparation/Edelman SPI Practice
Exam With Questions And Correct Answers| Brand New Version!
The effects of soft tissue on US are called:
acoustic proliferation properties
dynamic effects
acoustic propagation properties
biologic effects - (ANSWER)acoustic propagation properties
All of the following are true EXCEPT:
Two waves with identical frequencies must interfere constructively
Constructive interference is associated with waves that are in-phase
Out-of-phase waves interfere destructively
Waves of different frequencies may exhibit both constructive and destructive interference at different
times - (ANSWER)Two waves with identical frequencies must interfere constructively
Put in decreasing order:
deca
deci
micro
centi - (ANSWER)deca, deci, centi, micro
____ is the time to complete one cycle.
pulse duration
pulse period
,Edelman SPI Comprehensive Exam /Edelman SPI Exam Preparation/Edelman SPI Practice
Exam With Questions And Correct Answers| Brand New Version!
period
duration period - (ANSWER)period
Which of the following sound waves is ultrasonic and least useful in diagnostic imaging?
30KHz
8 MHz
8,000 Hz
3,000 kHz
15 Hz - (ANSWER)30 KHz
What is the frequency of a wave with 1 msec period?
10,000 Hz
1,000 kHz
1 kHz
1MHz - (ANSWER)1 kHz
____ is the distance covered by one cycle
pulse length
wavelength
cycle distance
cycle duration - (ANSWER)wavelength
Which of the following is determined by the source and the medium?
, Edelman SPI Comprehensive Exam /Edelman SPI Exam Preparation/Edelman SPI Practice
Exam With Questions And Correct Answers| Brand New Version!
frequency
period
propagation speed
range resolution - (ANSWER)range resolution
propagation speed = ______ * wavelength
pulse duration
period
number of cycles in the pulse
frequency - (ANSWER)frequency
As a result of _____ the propagation speed increases
increasing stiffness and increasing density
increasing stiffness and increasing elasticity
decreasing compressibility and decreasing density
decreasing stiffness and decreasing density - (ANSWER)decreasing compressibility and decreasing
density
Put in decreasing order of propagation speed
gas
liquid
solid - (ANSWER)solid, liquid, gas
If the frequency of US is increased from 0.77 MHz to 1.54 MHz, what happens to the wavelength?
