Questions
A signal with a 120 decibel dynamic range was previously compressed
by 40 decibels. What is the dynamic range of the original uncompressed
signal?
A. 160 decibels
B. 120 decibels
C. 3 decibels
D. 80 decibels - Correct Answer - ✔️✔️160 dB- 120+40= 160dB
Which display is limited to a single pair of brightness or display levels?
A. CRT
B. binary
C. bistable
,D. gray scale - Correct Answer - ✔️✔️bistable
All of the following are consistent with an image containing black and
white only with no shades of Gray except:
A. bistable
B. high contrast
C. wide dynamic range - Correct Answer - ✔️✔️wide dynamic
range
Which of the following terms is not associated with a wide dynamic
range image?
A. Low contrast
B. many shades of Gray
C. bistable - Correct Answer - ✔️✔️bistable
Which of the following flow patterns is associated with cardiac
contraction?
,A. Phasic
B. spontaneous
C. steady
D. pulsatile
E. continuous - Correct Answer - ✔️✔️pulsatile
Which of the following terms does not belong with the others?
A. Phasic
B. spontaneous
C. pulsatile
D. Venous - Correct Answer - ✔️✔️pulsatile- this is related to
arterial flow
Which of the following is not associated with the laminar flow?
A. layered
, B. normal
C. aligned
D. smooth
E. chaotic - Correct Answer - ✔️✔️chaotic
Which of the following is not associated with a turbulent flow?
A. Parabolic
B. Eddy
C. vortex
D. swirling
E. spectral broadening - Correct Answer - ✔️✔️parabolic-
parabolic flow is bullet shaped flow pattern associated with laminar
flow
What is the primary reason blood moves from one location to another?
A. Energy gradient