X-zone UPDATED Exam Questions and
CORRECT Answers
Spatial resolution is determined by which of the following?
a. the number of bits per pixel
b. spatial pulse length
c. frame rate
number of pixels per inch
e beam diameter - CORRECT ANSWER- d. the number of pixels per inch
Spatial resolution is determined by which of the following?
a. the number of bits per pixel
b. spatial pulse length
c. frame rate
d.the number of pixels per inch
e beam diameter - CORRECT ANSWER- d. the number of pixels per inch
Which of the following receiver functions cant be adjusted by the sonographer?
a. compensation
b. demodulation
c. compression
d. amplification
e. threshold - CORRECT ANSWER- b. demodulation
Which of the following transducers will have the shallowest focus?
a. high frequency, large diameter
b. high frequency, small diameter
c. low frequency, large diameter
d. low frequency, small diameter - CORRECT ANSWER- d. low frequency, small diameter
Enhancement artifact appears on an ultrasound scan. Which of the following statements is
true about the structure immediately above the artifact?
a. attenuation properties are too low
b. speed of sound is too high
c. speed of sound is too low
d. it is hypo echoic
e. there is too little absorption - CORRECT ANSWER- a. attenuation properties are too low
, The image on an ultrasound system's display is too bright. Which of the following techniques
is best to correct this problem?
a. decrease receiver gain
b. decrease reject
c. adjust time gain compensation
d. decrease output power
e. increase threshold - CORRECT ANSWER- d. decrease output power
A pulse is emitted by a transducer and is traveling in soft tissue. The go-return time, or time-
of-flight, of a sound pulse is 130 microseconds. What is the reflector depth?
a. 10 cm
b. 130 mm
c. 10 m
d. 10 mm
e. 13 cm - CORRECT ANSWER- a. 10 cm
How much time is required for a sound pulse to travel round trip to and from a reflector that
is 2 cm deep in soft tissue?
a. 26 ms
b. 26 us
c. 26 s
d. 0.26 s
e. 2 s - CORRECT ANSWER- b. 26 us
Which of the following terms does not belong with the others?
a. plug flow
b. layered flow
c. turbulent flow
d. parabolic flow
e. laminar flow - CORRECT ANSWER- c. turbulent flow
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