SPI Practice ARDMS A and B Examination
Complete Breakdown 2026/2027 Questions
and Answers (Verified) | A+ | 100% Correct
Questions and Answers
• to which acoustic variable is penetration depth inversely related?
A.frequency
B.wavelength
C.period
D.propagation speed -✓✓A
• which imaging mode requires a broadband transducer?
A.continuous wave doppler
B.Pulsed wave doppler
C.color flow imaging
D.harmonic imaging -✓✓B
• what is the doppler shift frequency?
A.recieved ultrasound frequency multiplied by the transmitted ultrasound
frequency
B.difference between the transmitted ultrasound frequency and the received
ultrasound frequency
C.sum of the transmitted and received ultrasound frequencies
D.ratio of the transmitted ultrasound frequency to the received ultrasound
frequency -✓✓B
• what is the potential effect of increasing the pulse repetition frequency(PRF)?
A.Depth ambiguity
B.Decreased frame rate
C.Poor spatial resolution
D.Decreased penetration -✓✓A
• what is an advantage of using pulsed wave doppler compared to continuous
wave doppler?
A.higher echo sensitivity
,B.ability to select sample depth
C.decreased display of aliasing
D.improved temporal resolution -✓✓B
• what affects the beam width in the near field?
A.Pulse repetition frequency
B.Pulse duration
C.Frame rate
D.Transducer aperture -✓✓D
• what is the advantage of using pulsed-wave doppler versus continuous-wave
doppler?
A.allows measurement of higher velocities
B.increases range ambiguity
C.reduces the potential for aliasing
D.provides depth specificity -✓✓D
• which parameter is target group C evaluating based on the image?
A.dead zone
B.dynamic range
C.axial resolution
D.Horizontal distance accuracy -✓✓D
• In this image, which target group is used to evaluate dead zone? -✓✓A
• which ultrasound parameter directly affects an ultrasound beam's intensity?
A.TGC
B.operating frequency
C.Output power
D.Frame rate -✓✓C
• the center frequency of a transducer depends primarily upon which
characteristics of the crystal?
A.width
B.length
C.spacing
D.thickness -✓✓D
, • which factor limits image frame rate?
A.transducer operating frequency
B.Sample volume size
C.Speed of sound in tissue
D.Spatial pulse length -✓✓C
• when using a 5MHZ transducer, in which tissue is the ultrasound wavelength
shortest?
A.fat
B.blood
C.bone
D.muscle -✓✓A
• which term describes the averaging together of scan lines from multiple angles
to create one image?
A.harmonic imaging
B.realtime three dimensional imaging
C.elastography
D.spatial compounding -✓✓D
• which variable can cause an acoustic shadow artifact?
A.small acoustic impedance mismatch
B.refraction
C.perpendicular incidence
D.low attenuation -✓✓A
• what does coded excitation improve in addition to penetration?
A.lateral resolution
B.signal-to-noise ratio
C.frame rate
D.dynamic range -✓✓B
• how is lateral resolution determined for a pulsed-echo system using a tissue-
mimicking test object?
A.by observing spaces between reflectors perpendicular to the beam
B.by observing spaces between reflectors along the beam path
Complete Breakdown 2026/2027 Questions
and Answers (Verified) | A+ | 100% Correct
Questions and Answers
• to which acoustic variable is penetration depth inversely related?
A.frequency
B.wavelength
C.period
D.propagation speed -✓✓A
• which imaging mode requires a broadband transducer?
A.continuous wave doppler
B.Pulsed wave doppler
C.color flow imaging
D.harmonic imaging -✓✓B
• what is the doppler shift frequency?
A.recieved ultrasound frequency multiplied by the transmitted ultrasound
frequency
B.difference between the transmitted ultrasound frequency and the received
ultrasound frequency
C.sum of the transmitted and received ultrasound frequencies
D.ratio of the transmitted ultrasound frequency to the received ultrasound
frequency -✓✓B
• what is the potential effect of increasing the pulse repetition frequency(PRF)?
A.Depth ambiguity
B.Decreased frame rate
C.Poor spatial resolution
D.Decreased penetration -✓✓A
• what is an advantage of using pulsed wave doppler compared to continuous
wave doppler?
A.higher echo sensitivity
,B.ability to select sample depth
C.decreased display of aliasing
D.improved temporal resolution -✓✓B
• what affects the beam width in the near field?
A.Pulse repetition frequency
B.Pulse duration
C.Frame rate
D.Transducer aperture -✓✓D
• what is the advantage of using pulsed-wave doppler versus continuous-wave
doppler?
A.allows measurement of higher velocities
B.increases range ambiguity
C.reduces the potential for aliasing
D.provides depth specificity -✓✓D
• which parameter is target group C evaluating based on the image?
A.dead zone
B.dynamic range
C.axial resolution
D.Horizontal distance accuracy -✓✓D
• In this image, which target group is used to evaluate dead zone? -✓✓A
• which ultrasound parameter directly affects an ultrasound beam's intensity?
A.TGC
B.operating frequency
C.Output power
D.Frame rate -✓✓C
• the center frequency of a transducer depends primarily upon which
characteristics of the crystal?
A.width
B.length
C.spacing
D.thickness -✓✓D
, • which factor limits image frame rate?
A.transducer operating frequency
B.Sample volume size
C.Speed of sound in tissue
D.Spatial pulse length -✓✓C
• when using a 5MHZ transducer, in which tissue is the ultrasound wavelength
shortest?
A.fat
B.blood
C.bone
D.muscle -✓✓A
• which term describes the averaging together of scan lines from multiple angles
to create one image?
A.harmonic imaging
B.realtime three dimensional imaging
C.elastography
D.spatial compounding -✓✓D
• which variable can cause an acoustic shadow artifact?
A.small acoustic impedance mismatch
B.refraction
C.perpendicular incidence
D.low attenuation -✓✓A
• what does coded excitation improve in addition to penetration?
A.lateral resolution
B.signal-to-noise ratio
C.frame rate
D.dynamic range -✓✓B
• how is lateral resolution determined for a pulsed-echo system using a tissue-
mimicking test object?
A.by observing spaces between reflectors perpendicular to the beam
B.by observing spaces between reflectors along the beam path
