ARDMS SPI EXAM QUESTIONS
(LATEST UPDATE 2025) |
GUARANTEED ACCURATE
ANSWERS |PASS!!
Example of nonspecular reflector - Accurate ✔✔✔ ......red blood cells
What happens to spatial pulse length when frequency increases? -
Accurate ✔✔✔ ......decreases
Axial resolution is dependent on? - Accurate ✔✔✔ ......wavelength
Lateral resolution is dependent on? - Accurate ✔✔✔ ......beam diameter
Where does the beam of an unfocused transducer diverge? - Accurate
✔✔✔ ......Fraunhofer zone
Reverberation artifacts are a result of - Accurate ✔✔✔ ......two or more
strong reflecting surfaces
True/False: Grating lobes are essential for the proper operation of a
linear phased array. - Accurate ✔✔✔ ......False
,True/False: Electronically steered scanners always produce higher
resolution images than do mechanically steered scanners. - Accurate
✔✔✔ ......False
True/False: An annular array scanner uses mechanical beam steering. -
Accurate ✔✔✔ ......True
True/False: A linear sequenced array cannot be dynamically focused. -
Accurate ✔✔✔ ......False
Registration or B-mode alignment - Accurate ✔✔✔ ......Which AIUM
test object function utilizes all the groups of wires in the AIUM 100 mm
test object?
Axial resolution - Accurate ✔✔✔ ......Which AIUM test object function
utilizes the A group of wires in the AIUM 100 mm test object?
Lateral resolution - Accurate ✔✔✔ ......Which AIUM test object
function utilizes the B group of wires in the AIUM 100 mm test object?
Dead zone - Accurate ✔✔✔ ......Which AIUM test object function
utilizes the D group of wires in the AIUM 100 mm test object?
,Depth calibration - Accurate ✔✔✔ ......Which AIUM test object
function utilizes the C or E groups of wires in the AIUM 100 mm test
object?
What happens to axial resolution when spatial pulse length is decreased?
- Accurate ✔✔✔ ......improves
How much will a 3.5 mhz pulse be attenuated after passing through 2 cm
of soft tissue? - Accurate ✔✔✔ ......3.5 db
Propagation speed errors result in - Accurate ✔✔✔ ......improper axial
position
Enhancement is caused by - Accurate ✔✔✔ ......weakly attenuating
structures
The Doppler shift frequency is - Accurate ✔✔✔ ......directly
proportional to the velocity of the reflector
The number of frames per second necessary for a real-time image to be
flicker free is - Accurate ✔✔✔ ......more than 15
True/False: The SPTA intensity will always be larger than the SATA
intensity. - Accurate ✔✔✔ ......True
, The intensity of the ultrasound beam is usually greater at the focal zone
because of - Accurate ✔✔✔ ......the smaller beam diameter
If the amplitude is doubled, the intensity is - Accurate
✔✔✔ ......quadrupled
The attenuation for soft tissue is - Accurate ✔✔✔ ......increased with
tissue thickness
The acoustic impedance of the matching layer - Accurate ✔✔✔ ......can
be chosen to improve transmission into the body
True/False: In a pulse-echo system, the quality factor should be made as
large as possible. - Accurate ✔✔✔ ......False
True/False: The beam diameter is constant in the near zone. - Accurate
✔✔✔ ......False
The operating frequency is dependent on - Accurate ✔✔✔ ......thickness
of the crystal
The period of an ultrasound wave is - Accurate ✔✔✔ ......the time of
one wavelength
(LATEST UPDATE 2025) |
GUARANTEED ACCURATE
ANSWERS |PASS!!
Example of nonspecular reflector - Accurate ✔✔✔ ......red blood cells
What happens to spatial pulse length when frequency increases? -
Accurate ✔✔✔ ......decreases
Axial resolution is dependent on? - Accurate ✔✔✔ ......wavelength
Lateral resolution is dependent on? - Accurate ✔✔✔ ......beam diameter
Where does the beam of an unfocused transducer diverge? - Accurate
✔✔✔ ......Fraunhofer zone
Reverberation artifacts are a result of - Accurate ✔✔✔ ......two or more
strong reflecting surfaces
True/False: Grating lobes are essential for the proper operation of a
linear phased array. - Accurate ✔✔✔ ......False
,True/False: Electronically steered scanners always produce higher
resolution images than do mechanically steered scanners. - Accurate
✔✔✔ ......False
True/False: An annular array scanner uses mechanical beam steering. -
Accurate ✔✔✔ ......True
True/False: A linear sequenced array cannot be dynamically focused. -
Accurate ✔✔✔ ......False
Registration or B-mode alignment - Accurate ✔✔✔ ......Which AIUM
test object function utilizes all the groups of wires in the AIUM 100 mm
test object?
Axial resolution - Accurate ✔✔✔ ......Which AIUM test object function
utilizes the A group of wires in the AIUM 100 mm test object?
Lateral resolution - Accurate ✔✔✔ ......Which AIUM test object
function utilizes the B group of wires in the AIUM 100 mm test object?
Dead zone - Accurate ✔✔✔ ......Which AIUM test object function
utilizes the D group of wires in the AIUM 100 mm test object?
,Depth calibration - Accurate ✔✔✔ ......Which AIUM test object
function utilizes the C or E groups of wires in the AIUM 100 mm test
object?
What happens to axial resolution when spatial pulse length is decreased?
- Accurate ✔✔✔ ......improves
How much will a 3.5 mhz pulse be attenuated after passing through 2 cm
of soft tissue? - Accurate ✔✔✔ ......3.5 db
Propagation speed errors result in - Accurate ✔✔✔ ......improper axial
position
Enhancement is caused by - Accurate ✔✔✔ ......weakly attenuating
structures
The Doppler shift frequency is - Accurate ✔✔✔ ......directly
proportional to the velocity of the reflector
The number of frames per second necessary for a real-time image to be
flicker free is - Accurate ✔✔✔ ......more than 15
True/False: The SPTA intensity will always be larger than the SATA
intensity. - Accurate ✔✔✔ ......True
, The intensity of the ultrasound beam is usually greater at the focal zone
because of - Accurate ✔✔✔ ......the smaller beam diameter
If the amplitude is doubled, the intensity is - Accurate
✔✔✔ ......quadrupled
The attenuation for soft tissue is - Accurate ✔✔✔ ......increased with
tissue thickness
The acoustic impedance of the matching layer - Accurate ✔✔✔ ......can
be chosen to improve transmission into the body
True/False: In a pulse-echo system, the quality factor should be made as
large as possible. - Accurate ✔✔✔ ......False
True/False: The beam diameter is constant in the near zone. - Accurate
✔✔✔ ......False
The operating frequency is dependent on - Accurate ✔✔✔ ......thickness
of the crystal
The period of an ultrasound wave is - Accurate ✔✔✔ ......the time of
one wavelength
