SPI Edelman Ch. 4-6 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS
,If intensity reflection coefficient increases, intensity a.
transmission coefficient ____ _. decreases
Select one:
a.decreases
b.increases
c.remains unchanged
d.is equal to the intensity reflection coefficient
Which of the following has the lowest intensity: c.SATA
a.SPPA
b.SPTP
c.SATA
d.SPTA
The impedance of the matching layer is ____ _. a.an intermediate value between the transducer element and tissue
Select one:
a.an intermediate value between the transducer element
and tissue
b.greater than the value between the transducer element
and tissue
c.less than the value between the transducer element and
tissue
d.equal to the impedance of tissue
The attenuation coefficient for soft tissue using a 10 MHz a.5 dB/cm
transducer is ___ _.
Select one:
a.5 dB/cm
b.5 dB/mm
c.10 dB/cm
d.10 dB/mm
The period times the number of cycles in a pulse is pulse duration
known as the
Select one:
pulse duration
continuous wave
pulse repetition period
pulse repetition frequency
Intensity is indirectly related to the area
Select one:
indirectly related to amplitude
directly related to the area
indirectly related to the area
indirectly related to power
, _ _______ is the time from the beginning of a pulse to the pulse repetition period
beginning of the next pulse.
Select one:
duty factor
pulse repetition frequency
pulse duration
pulse repetition period
The spatial pulse length is defined as the product of the a.Cycles, wavelength
number of —---------- in a pulse multiplied by — --.
a.Cycles, wavelength
b.frequency, velocity
c.cycles, frequency
d.frequency, wavelength
Intensity is proportional to amplitude squared. TRUE
TRUE
FALSE
The pulse repetition frequency is the number of pulses b.second
that occur in a single __ _.
Select one:
a.microsecond
b.second
c.millisecond
d.pulse
The proportion of intensity to amplitude is ____ _. c.
Select one: squared
a.tripled
b.halved
c.squared
d.quadrupled
The Intensity Reflection Coefficient refers to the percentage of ultrasound energy that is reflected back to the transducer
Select one:
the reflected intensity plus the transmitted intensity
the percentage of ultrasound energy that is reflected
back to the transducer
the percentage of ultrasound intensity that is transmitted
through an interface
the strength of the ultrasound intensity that continues to
propagate forward
Normal incidence occurs when the ultrasound beam a.Perpendicular
travels __ to the boundary between the two media.
a.Perpendicular
b.At 1540 m/s
c.Obliquely
d.Parallel
,If intensity reflection coefficient increases, intensity a.
transmission coefficient ____ _. decreases
Select one:
a.decreases
b.increases
c.remains unchanged
d.is equal to the intensity reflection coefficient
Which of the following has the lowest intensity: c.SATA
a.SPPA
b.SPTP
c.SATA
d.SPTA
The impedance of the matching layer is ____ _. a.an intermediate value between the transducer element and tissue
Select one:
a.an intermediate value between the transducer element
and tissue
b.greater than the value between the transducer element
and tissue
c.less than the value between the transducer element and
tissue
d.equal to the impedance of tissue
The attenuation coefficient for soft tissue using a 10 MHz a.5 dB/cm
transducer is ___ _.
Select one:
a.5 dB/cm
b.5 dB/mm
c.10 dB/cm
d.10 dB/mm
The period times the number of cycles in a pulse is pulse duration
known as the
Select one:
pulse duration
continuous wave
pulse repetition period
pulse repetition frequency
Intensity is indirectly related to the area
Select one:
indirectly related to amplitude
directly related to the area
indirectly related to the area
indirectly related to power
, _ _______ is the time from the beginning of a pulse to the pulse repetition period
beginning of the next pulse.
Select one:
duty factor
pulse repetition frequency
pulse duration
pulse repetition period
The spatial pulse length is defined as the product of the a.Cycles, wavelength
number of —---------- in a pulse multiplied by — --.
a.Cycles, wavelength
b.frequency, velocity
c.cycles, frequency
d.frequency, wavelength
Intensity is proportional to amplitude squared. TRUE
TRUE
FALSE
The pulse repetition frequency is the number of pulses b.second
that occur in a single __ _.
Select one:
a.microsecond
b.second
c.millisecond
d.pulse
The proportion of intensity to amplitude is ____ _. c.
Select one: squared
a.tripled
b.halved
c.squared
d.quadrupled
The Intensity Reflection Coefficient refers to the percentage of ultrasound energy that is reflected back to the transducer
Select one:
the reflected intensity plus the transmitted intensity
the percentage of ultrasound energy that is reflected
back to the transducer
the percentage of ultrasound intensity that is transmitted
through an interface
the strength of the ultrasound intensity that continues to
propagate forward
Normal incidence occurs when the ultrasound beam a.Perpendicular
travels __ to the boundary between the two media.
a.Perpendicular
b.At 1540 m/s
c.Obliquely
d.Parallel
