Edelman SPI Practice Exam With Questions And 100%
Correct Answers With rationales| Newest Version!!!
Reflectors that are closer together than the width of the
beam create what artifact?
A Pulse length artifact
B Side lobe artifact
C Azimuthal artifact
D Transverse artifact - ANSWER-C. Also known as Beam
width artifact, lateral resolution artifact and Pulse width
artifact. Basically they are shown as a single point
because the resolution of the image is only as good as the
minimal thickness of the beam at that depth.
Pulse Length is related to pulse duration how?
,A Directly.
B They are independent of each other.
C 2X.
D Inversely. - ANSWER-A. As pulse length increases so
does pulse duration. It takes longer to create the pulse,
and it takes longer for the pulse to travel and return.
Grating/side lobes cause what artifact?Here is an example
of side lobes and grating lobes. You can see how the
original beam is thin but off axis sound is also generated.
A Refraction
B Twinkle artifact
C Clouding and False structures
,D Acoustic enhancement - ANSWER-C Clouding and
False structures
Brightness of the display is affected by?
A Receiver amplification
B Contrast
C Dynamic Range
D Echo length - ANSWER-A Receiver amplification
The greatest inertial energy losses are as blood moves
through what?
A A stenosis
B A bifurcation
C An artery
, D A vein - ANSWER-This is due to the friction that the
blood experiences.
Power over a tiny area. High intensity. Power over a large
area. Not much intensity. It's like light coming through a
window can be warm. But focus it with a magnifying glass
and it gets intense. It will burn.
What determines the Pulse Repetition Frequency (PRF)?
A The source of the sound.
B The amplitude of the wave.
C The medium through which the sound travels.
D Total output power. - ANSWER-A. The source of the
sound.
Correct Answers With rationales| Newest Version!!!
Reflectors that are closer together than the width of the
beam create what artifact?
A Pulse length artifact
B Side lobe artifact
C Azimuthal artifact
D Transverse artifact - ANSWER-C. Also known as Beam
width artifact, lateral resolution artifact and Pulse width
artifact. Basically they are shown as a single point
because the resolution of the image is only as good as the
minimal thickness of the beam at that depth.
Pulse Length is related to pulse duration how?
,A Directly.
B They are independent of each other.
C 2X.
D Inversely. - ANSWER-A. As pulse length increases so
does pulse duration. It takes longer to create the pulse,
and it takes longer for the pulse to travel and return.
Grating/side lobes cause what artifact?Here is an example
of side lobes and grating lobes. You can see how the
original beam is thin but off axis sound is also generated.
A Refraction
B Twinkle artifact
C Clouding and False structures
,D Acoustic enhancement - ANSWER-C Clouding and
False structures
Brightness of the display is affected by?
A Receiver amplification
B Contrast
C Dynamic Range
D Echo length - ANSWER-A Receiver amplification
The greatest inertial energy losses are as blood moves
through what?
A A stenosis
B A bifurcation
C An artery
, D A vein - ANSWER-This is due to the friction that the
blood experiences.
Power over a tiny area. High intensity. Power over a large
area. Not much intensity. It's like light coming through a
window can be warm. But focus it with a magnifying glass
and it gets intense. It will burn.
What determines the Pulse Repetition Frequency (PRF)?
A The source of the sound.
B The amplitude of the wave.
C The medium through which the sound travels.
D Total output power. - ANSWER-A. The source of the
sound.
