AVIXA CTS-D: Determine Image
Specifications UPDATED ACTUAL Exam
Questions and CORRECT Answers
Farthest Viewer - CORRECT ANSWER - Viewer positioned at the farthest distance from
the screen as defined by the viewing area.
Closest Viewer - CORRECT ANSWER - Viewer positioned at the shortest distance from
the screen as defined by the viewing area.
Element - CORRECT ANSWER - is a group of pixels conveying an item of information.
It is a small component of the entire image, and, for our purposes, an element is the smallest
discrete unit that a viewer must be able to discern and comprehend
Percent Element Height (%EH) - CORRECT ANSWER - The height of an element in
relation to the overall Image Height (IH). The BDM factor represents the ratio of element height
to screen height expressed as a percentage (e.g., 1% represents 1 unit relative to 100 units screen
height). DISCAS provides a range of percentages; users of the Standard should vary this
percentage according to the content.
What are the viewing categories? - CORRECT ANSWER - 1. Passive Viewing
2. Basic Decision Making
3. Analytical Decision Making
4. Full Motion Video
What is passive viewing? - CORRECT ANSWER - Does not require the assimilation and
retention of detail. Examples of spaces where Passive Viewing might apply are in retail stores, or
in family rooms.
What is Basic Decision Making (BDM) viewing? - CORRECT ANSWER - a viewer can
make decisions from the displayed image, but that comprehending the informational content is
, not dependent upon being able to resolve every element detail. Examples of spaces where Basic
Decision Making might apply are on information displays, in classrooms, boardrooms, or multi-
purpose rooms.
What is analytical decision making viewing (ADM)? - CORRECT ANSWER - When
pixel-level detail matters. Examples of when you would want to use Analytical Decision Making
might include engineering and architectural drawings, electrical schematics, forensic evidence,
failure analysis, and photographic evaluation
What is Full motion video viewing? - CORRECT ANSWER - the viewing category for
controlled viewing environments like home theaters, business screening rooms, and post-
production.
What viewing categories does DISCAS use? - CORRECT ANSWER - BDM and ADM
What is the ADM closest viewer formula - CORRECT ANSWER - Does not exist, not
needed. Vertical viewing distance is also not considered since viewer can stand close to the
screen.
What is in a Plan view for ADM - CORRECT ANSWER - display image width, room
layout and dimensions, horizontal viewing angles, and the arc showing the farthest viewer
distance. No Elevation view
What is in the plan view for BDM Closest Viewer - CORRECT ANSWER - includes the
image width, horizontal viewing angles, closest viewer, and farthest viewer. Elevation view with
max eye height to top of screen maximum 30 degrees.
Practical percent element height range - CORRECT ANSWER - 2% to 4%
Element Height Formula - CORRECT ANSWER - EH = FV / 200, EH is element height,
FV is furthest viewer,
Specifications UPDATED ACTUAL Exam
Questions and CORRECT Answers
Farthest Viewer - CORRECT ANSWER - Viewer positioned at the farthest distance from
the screen as defined by the viewing area.
Closest Viewer - CORRECT ANSWER - Viewer positioned at the shortest distance from
the screen as defined by the viewing area.
Element - CORRECT ANSWER - is a group of pixels conveying an item of information.
It is a small component of the entire image, and, for our purposes, an element is the smallest
discrete unit that a viewer must be able to discern and comprehend
Percent Element Height (%EH) - CORRECT ANSWER - The height of an element in
relation to the overall Image Height (IH). The BDM factor represents the ratio of element height
to screen height expressed as a percentage (e.g., 1% represents 1 unit relative to 100 units screen
height). DISCAS provides a range of percentages; users of the Standard should vary this
percentage according to the content.
What are the viewing categories? - CORRECT ANSWER - 1. Passive Viewing
2. Basic Decision Making
3. Analytical Decision Making
4. Full Motion Video
What is passive viewing? - CORRECT ANSWER - Does not require the assimilation and
retention of detail. Examples of spaces where Passive Viewing might apply are in retail stores, or
in family rooms.
What is Basic Decision Making (BDM) viewing? - CORRECT ANSWER - a viewer can
make decisions from the displayed image, but that comprehending the informational content is
, not dependent upon being able to resolve every element detail. Examples of spaces where Basic
Decision Making might apply are on information displays, in classrooms, boardrooms, or multi-
purpose rooms.
What is analytical decision making viewing (ADM)? - CORRECT ANSWER - When
pixel-level detail matters. Examples of when you would want to use Analytical Decision Making
might include engineering and architectural drawings, electrical schematics, forensic evidence,
failure analysis, and photographic evaluation
What is Full motion video viewing? - CORRECT ANSWER - the viewing category for
controlled viewing environments like home theaters, business screening rooms, and post-
production.
What viewing categories does DISCAS use? - CORRECT ANSWER - BDM and ADM
What is the ADM closest viewer formula - CORRECT ANSWER - Does not exist, not
needed. Vertical viewing distance is also not considered since viewer can stand close to the
screen.
What is in a Plan view for ADM - CORRECT ANSWER - display image width, room
layout and dimensions, horizontal viewing angles, and the arc showing the farthest viewer
distance. No Elevation view
What is in the plan view for BDM Closest Viewer - CORRECT ANSWER - includes the
image width, horizontal viewing angles, closest viewer, and farthest viewer. Elevation view with
max eye height to top of screen maximum 30 degrees.
Practical percent element height range - CORRECT ANSWER - 2% to 4%
Element Height Formula - CORRECT ANSWER - EH = FV / 200, EH is element height,
FV is furthest viewer,
