Question 1

Which control should a sonographer use to change contrast resolution?

Options :

A : Reject

B : Output power

C : Gain

D : Dynamic range

Answer: D

Question 2

What is the primary interaction that occurs when sound waves encounter a smooth, flat surface?

Options :

A : Attenuation

B : Reflection

C : Diffraction

D : Interference

Answer: B

Question 3

Which change can be made in order to avoid exceeding the Nyquist limit?

Options :

A : Increase output power

B : Decrease output power

C : Increase pulse repetition frequency

D : Decrease pulse repetition frequency

Answer: C

Question 4

During 3-D volume acquisition, the quality of the images is most dependent upon which factor?

Options :

A : Number of slices acquired

B : Power output

C : Rendering method utilized

D : Speed of post-processing image compression

Answer: A

Question 5

What occurs when the pulse repetition frequency is less than twice the Doppler shift frequency?

Options :

A : Spectral broadening

B : Range ambiguity

C : Aliasing

D : Propagation speed artifact

Answer: C

Free SPI Mock Exam – Practice Online Confidently