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ARDMS - SPI EXAM LATEST 2024 COMPLETE 110
ACTUAL EXAM QUESTIONS WITH 100%
CORRECT VERIFIED ANSWERS/ GRADED A+
The center operating frequency of a transducer is determined by:
- impedance matching layer.
- crystal thickness.
- bandwidth.
- crystal shape. - Correct Answer - B) crystal thickness.
Coupling gel is used to:
- improve axial resolution.
- increase damping.
- increase transmission.
- increase reflection factor. - Correct Answer - C) increase transmission.
The 3D profile of the beam in a linear array is controlled by:
- acoustic lens.
- transmit focus.
- phasing.
- beam former. - Correct Answer - A) acoustic lens.
Which transducer employs electronic beam steering to create a wide field of view?
- Curvilinear
- Mechanical transducer 1 / 3
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- Phased array
- Linear sequential - Correct Answer - C) Phased array
Dynamic focusing is used by:
- all array transducers.
- only phased arrays.
- none.
- only curved arrays. - Correct Answer - A) all array transducers.
A thinner element will have:
- higher curie temperature.
- longer wavelength.
- higher frequency.
- poor frame rate. - Correct Answer - C) higher frequency.
Which statement refers to the process of phasing?
- Electronic beam steering
- Acoustic lens
- Electronic focusing
- Mechanical movement of the probe - Correct Answer - A) Electronic beam steering
Which of the following is used to control elevational resolution in a 2D transducer?
- Bandwidth
- Axial resolution
- Lens
- Beam former - Correct Answer - D) Beam former
The conversion of an incident pressure wave into an electrical signal is called: 2 / 3
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- Snell's law.
- piezoelectric effect.
- Huygen's principle.
- Curie effect. - Correct Answer - B) piezoelectric effect.
Electronic focusing in transmit mode uses:
- changeable lens.
- curved element.
- time delays to excite transducer elements.
- high pulse repetition frequency. - Correct Answer - C) time delays to excite
transducer elements.
Which transducer would you select for maximum penetration?
- 3 MHz curvilinear
- 4 MHz phased array
- 8 MHz linear phased array
- 10 MHz tightly curved array - Correct Answer - A) 3 MHz curvilinear
The transducer component responsible for the timing and order of the sequence
is:
- impedance matching layer.
- beam former.
- elevational resolution.
- PZT. - Correct Answer - B) beam former.
An image is bright in the near field but darker in the far field. Which process is responsible for this effect?
- Propagation speed variations
- Digital scan conversion
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