ARDMS SPI EXAM (2 VERSIONS) NEWEST 2026 (GRADED A+ 100% VERIFIED ANSWERS)
1. An image is bright in the near field but darker in the far field. Which process is responsible
for this effect?
A) Propagation speed variations
B) Digital scan conversion
C) Acoustic attenuation
D) Refraction - ANSWER-C) Acoustic attenuation
2. If a calcification is present but there is not much shadowing, what can you adjust to
demonstrate more of the shadow?
A) Decrease line density
B) Adjust focal position to low
C) Increase frequency
D) Increase gain - ANSWER-C) Increase frequency
3. What demonstrates how much magnification will occur in the receiver?
A) Rectification
B) Gain
C) Output power
D) PRF - ANSWER-B) Gain
,4. When adjusting the output power, which of the following system controls is affected?
A) Pulser
B) Beam former
C) Signal processor
D) Reciever - ANSWER-A) Pulser
5. What commonly caused localized non-uniformity along the vertical axis in a B-mode
image?
A) Poor lateral resolution
B) Improper TGC setting
C) Defective elements
D) Malfunctioning image processor - ANSWER-B) Improper TGC setting
6. Which statement is related to write zoom?
A) Loss of resolution
B) Performed on a frozen image
C) Preprocessing
D) Increased pixel size - ANSWER-C) Preprocessing
10. The 3D profile of the beam in a linear array is controlled by:
A) acoustic lens.
B) transmit focus.
,C) phasing.
D) beam former. - ANSWER-A) acoustic lens.
11. Which transducer employs electronic beam steering to create a wide field of view?
A) Curvilinear
B) Mechanical transducer
C) Phased array
D) Linear sequential - ANSWER-C) Phased array
12. Dynamic focusing is used by:
A) all array transducers.
B) only phased arrays.
C) none.
D) only curved arrays. - ANSWER-A) all array transducers.
14. A thinner element will have:
A) higher curie temperature.
B) longer wavelength.
C) higher frequency.
D) poor frame rate. - ANSWER-C) higher frequency.
15. Which statement refers to the process of phasing?
, A) Electronic beam steering
B) Acoustic lens
C) Electronic focusing
D) Mechanical movement of the probe - ANSWER-A) Electronic beam steering
16. Which of the following is used to control elevational resolution in a 2D transducer?
A) Bandwidth
B) Axial resolution
C) Lens
D) Beam former - ANSWER-D) Beam former
17. The conversion of an incident pressure wave into an electrical signal is called:
A) Snell's law.
B) piezoelectric effect.
C) Huygen's principle.
D) Curie effect. - ANSWER-B) piezoelectric effect.
18. Electronic focusing in transmit mode uses:
A) changeable lens.
B) curved element.
C) time delays to excite transducer elements.
D) high pulse repetition frequency. - ANSWER-C) time delays to excite transducer elements.
1. An image is bright in the near field but darker in the far field. Which process is responsible
for this effect?
A) Propagation speed variations
B) Digital scan conversion
C) Acoustic attenuation
D) Refraction - ANSWER-C) Acoustic attenuation
2. If a calcification is present but there is not much shadowing, what can you adjust to
demonstrate more of the shadow?
A) Decrease line density
B) Adjust focal position to low
C) Increase frequency
D) Increase gain - ANSWER-C) Increase frequency
3. What demonstrates how much magnification will occur in the receiver?
A) Rectification
B) Gain
C) Output power
D) PRF - ANSWER-B) Gain
,4. When adjusting the output power, which of the following system controls is affected?
A) Pulser
B) Beam former
C) Signal processor
D) Reciever - ANSWER-A) Pulser
5. What commonly caused localized non-uniformity along the vertical axis in a B-mode
image?
A) Poor lateral resolution
B) Improper TGC setting
C) Defective elements
D) Malfunctioning image processor - ANSWER-B) Improper TGC setting
6. Which statement is related to write zoom?
A) Loss of resolution
B) Performed on a frozen image
C) Preprocessing
D) Increased pixel size - ANSWER-C) Preprocessing
10. The 3D profile of the beam in a linear array is controlled by:
A) acoustic lens.
B) transmit focus.
,C) phasing.
D) beam former. - ANSWER-A) acoustic lens.
11. Which transducer employs electronic beam steering to create a wide field of view?
A) Curvilinear
B) Mechanical transducer
C) Phased array
D) Linear sequential - ANSWER-C) Phased array
12. Dynamic focusing is used by:
A) all array transducers.
B) only phased arrays.
C) none.
D) only curved arrays. - ANSWER-A) all array transducers.
14. A thinner element will have:
A) higher curie temperature.
B) longer wavelength.
C) higher frequency.
D) poor frame rate. - ANSWER-C) higher frequency.
15. Which statement refers to the process of phasing?
, A) Electronic beam steering
B) Acoustic lens
C) Electronic focusing
D) Mechanical movement of the probe - ANSWER-A) Electronic beam steering
16. Which of the following is used to control elevational resolution in a 2D transducer?
A) Bandwidth
B) Axial resolution
C) Lens
D) Beam former - ANSWER-D) Beam former
17. The conversion of an incident pressure wave into an electrical signal is called:
A) Snell's law.
B) piezoelectric effect.
C) Huygen's principle.
D) Curie effect. - ANSWER-B) piezoelectric effect.
18. Electronic focusing in transmit mode uses:
A) changeable lens.
B) curved element.
C) time delays to excite transducer elements.
D) high pulse repetition frequency. - ANSWER-C) time delays to excite transducer elements.
