FREE PHYSICS AND STUDY GAMES ABOUT SPI EXAM

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FREE PHYSICS AND STUDY GAMES ABOUT SPI EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -263 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Which of the following will NOT eliminate aliasing?

-increasing the PRF -Increasing the Nyquist limit above the frequency shift -Decrease the ample depth -Increasing the frequency shift above the Nyquist limit

Answer:

Increasing the frequency shift above the Nyquist limit Question 2: In which mode is the strength of the reflector represented by the brightness of the dot?

Answer:

B-mode

Question 3: What described as the distance over which one cycles occurs?

Answer:

Wavelength

Question 4: The change in direction of the original sound wave that occurs when sound interacts with two different tissue types that have a different propagation speed is referred to

as:

Answer:

Refraction

Question 5: SPL can be calculated by

Answer:

Multiplying the number of cycles by the wavelength Question 6: Which signal processing technique used for color Doppler is nor as accurate as, but is faster than the technique used for Spectral Doppler?-zero crossing -phase quadrature -auto correlation -fast fourier transform

Answer:

Autocorrelation Question 7: Imaging transducers typically have:

Answer:

Low quality factors, wide bandwidths

Question 8: Which of the following is not a method of creating 3D images?

-broadband technologies -2D array technology -freehand technique -mechanical technique

Answer:

Broadband technologies Question 9: A shadow occurs when sound:

Answer:

Travels through an area of increased attenuation

Question 10: Which of the following would most likely to decrease beam divergence in the far field?-large crystal diameter, low frequency -small crystal diameter, low frequency -large crystal diameter, high frequency -small crystal diameter, high frequency

Answer:

Large crystal diameter, high. frequency Question 11: Which type of resolution is an accurate representation of moving structures?

Answer:

Temporal resolution Question 12: A nosocomial infection is best described as a:

Answer:

Hospital acquired infection

Question 13: Which of the following is not synonym for axial resolution?

-angular -range -depth -radial

Answer:

Angular Question 14: Which of the following is not true of the linear sequenced array transducer?-rectangular shape image -firing is sequential -electronically focused -the elements are arranged in a ring

Answer:

The elements are arranged in a ring Question 15: The portion if the transducer that comes in contact with the patient is the:

Answer:

Matching layer

Question 16: In a standing patient, where is the hydrogenation pressure the highest?

Answer:

In the feet Question 17: Which mode is interested in the movement of the reflector along one scan line?

Answer:

M-mode Question 18: If the far field of the image is too dark, it is recommended that you

Answer:

Increased the receiver gain Question 19: The output gain of the pulser determines the ______of the acoustic pulse.-frequency -intensity -duration -pulse repetition period

Answer:

Intensity

Question 20: Which of the following determines by the sound source only?

-frequency -wavelength -SPL -propagation speed

Answer:

Frequency

Question 21: Which of the following statement is false?

-aliasing does not occur with color Doppler -CW Doppler is able to measure very high frequency shifts -PW Doppler has range resolution -Power Doppler is not limited by 90º angle

Answer:

Aliasing does not occur with color Doppler