CTS EVALUATION EXAM 2026 QUESTIONS AND
SOLUTIONS RATED A+
✔✔Polar plot diagrams are used for which purpose? - ✔✔Identifying a device's
directionality at a given frequency
✔✔The polar plot below shows a loudspeaker's coverage pattern at 4 kHz. What is this
loudpspeaker's coverage angle? - ✔✔60 degrees
✔✔An increase in voltage means an increase in _____. - ✔✔resistance, if the current
remains the same
✔✔The ____ in an electrical circuit is proportional to the applied ____. - ✔✔current;
voltage
✔✔As impedance increases and current remains constant, voltage _____. -
✔✔increases
✔✔If the measured voltage in a circuit is 40 V, and the resistance is 8 ohms, what is the
current? - ✔✔5A
✔✔The relationship between current and ____ is inversely proportional. - ✔✔resistance
✔✔Resistance ____ the flow of current. - ✔✔reduces
✔✔If the measured current in a circuit is 5 A and the resistance is 8 ohms, what is the
voltage? - ✔✔40
✔✔If the measured current is 10 A and the voltage is 120 V, what is the resistance in
the circuit? - ✔✔12 Ohms
✔✔The current in a circuit is 0.5 A, and the voltage is measured at 9 V. What is the
power? - ✔✔4.5 W
✔✔The current in a circuit is measured at 1 A, and the resistance is 1 ohm. What is the
voltage? - ✔✔1 V
✔✔There are eight loudspeakers wired in parallel and each loudspeaker's impedance is
16 ohms. The impedance of the circuit is _____ ohms. - ✔✔2 ohms
✔✔There are four loudspeakers wired in parallel. Two of the loudspeakers each have
an impedance of 8 ohms. Two of the loudspeakers each have an impedance of 16
ohms. Calculate the impedance of this parallel circuit. - ✔✔2.7 ohms
,✔✔Which of the following is a polar plot diagram? - ✔✔Polar plot picture
✔✔Determine the wattage in a circuit measuring 120 volts with 15 amperes of current
flow. - ✔✔1800 W
✔✔The relationship among voltage, current, and resistance is defined by the
formula_____. - ✔✔I = V/R
✔✔If the measured power in a circuit is 5W, and the current is 1.5 amps, what is the
voltage? - ✔✔3.3 V
✔✔Your room design can accommodate a screen with a width of up to 80 inches wide.
The screen height is reasonably unrestrained. Your client's video image source
produces a 1920 x 1080 resolution. Which of the following screens could be a viable
option in this scenario? Choose all that apply. - ✔✔A screen with an image width of 80
inches and a height of 45 inches; A screen with an image width of 40 inches and a
height of 22.5 inches
✔✔What is the aspect ratio of a screen with a width of 108 inches (2743 mm) and a
diagonal of 135 inches (3429)? - ✔✔135:101.25
✔✔You require a 16:9 screen with a height of 60 inches (1524 mm). What will the
screen's diagonal be? - ✔✔122.4
✔✔A 16:9 screen will be installed in a lecture hall. The screen's diagonal is 72 inches
(1829 mm). What is its width? - ✔✔59.5
✔✔A screen's dimensions are 96 inches (2438 mm) x 96 inches (2438 mm). What width
does an image on that screen need to be for a 16:9 aspect ratio image? - ✔✔96 inches
(2438 mm)
✔✔What viewing category applies to a space used for technical drawings? - ✔✔ADM
✔✔What viewing category applies to a space used for PowerPoint presentations? -
✔✔BDM
✔✔What Viewing Category applies to a space used for medical imagery? - ✔✔ADM
✔✔What Viewing Category applies to a space used for word processing and
spreadsheets? - ✔✔BDM
,✔✔What viewing category applies to a space used for word processing and technical
drawings? - ✔✔Both ADM and BDM
✔✔Calculate the image height for a 2 percent element height (round to the nearest inch
or millimeter): - ✔✔84 in
✔✔Calculate the image height for a 3 percent element height (round to the nearest inch
or millimeter): - ✔✔56 in
✔✔Calculate the image height for a 4 percent element height (round to the nearest inch
or millimeter): - ✔✔42 in
✔✔The benefits of DISCAS include (Check all that apply): - ✔✔Are independently
confirmed and ratified; Takes different resolutions into account; Takes different aspect
ratios into account
✔✔The most common type of Viewing Category is __________. - ✔✔Basic Decision
Making (BDM)
✔✔In a BDM environment, viewers are more concerned with __________. - ✔✔overall
content than detail
✔✔The term "% element height" refers to __________. - ✔✔the height of the element
being viewed expressed in relation to the overall image height
✔✔DISCAS defines the minimum distance one can be to a display as the __________,
and the maximum distance one can be from a display as __________. - ✔✔Closest
Viewer; Farthest Viewer
✔✔An element is __________. (Choose the best answer) - ✔✔a group of pixels
conveying an item of information
✔✔DISCAS addresses the following viewing categories (check all that apply): -
✔✔Basic Decision Making; Analytical Decision Making
✔✔If an intended viewer needs to distinguish the finest details displayed, the
designer/assessor should use the __________ Viewing Category. - ✔✔Analytical
Decision Making
✔✔There is a Closest Viewer calculation for ADM. - ✔✔FALSE
✔✔No viewing position in the horizontal plane should exceed __________ degrees
from the opposite perpendicular edge of the displayed image. - ✔✔60
, ✔✔An elevation view is a required drawing for ADM. - ✔✔FALSE
✔✔There is a Closest Viewer for BDM. - ✔✔TRUE
✔✔DISCAS calculations must use consistent units. - ✔✔TRUE
✔✔The Farthest Viewer distance for ADM depends on (select all that apply): -
✔✔Image Height; Verical Image Resolution
✔✔The Farthest Viewer Distance for BDM depends on (choose the best answer): -
✔✔A and B
✔✔A screen is 72 inches (1829 mm) wide and the throw ratio is 2.1:1. How far from the
screen should the projector be placed? Express your answer in inches or millimeters. -
✔✔151.2 in
✔✔A screen is 125 inches (3175 mm) wide and the throw ratio is 2.3:1. How far from
the screen should the projector be placed? Express your answer in inches or millimeters
- ✔✔287.5 in
✔✔What is a projector's throw distance? - ✔✔the distance between a location on the
projector to the screen for a given image size
✔✔Estimating throw distance requires two values: ____ and ____. - ✔✔screen width;
throw ratio
✔✔The screen is 90 inches (2286 mm) wide and the lens ratio is 2.0:1. How far from
the screen should the projector be placed? - ✔✔180 in
✔✔The screen is 120 inches (3048 mm) wide and the lens ratio is 2.5:1. How far from
the screen should the projector be placed? - ✔✔300 in
✔✔In a ____ WAN topology, all LAN sites connect to an ISP backbone. - ✔✔common
carrier
✔✔A wide area network (WAN) uses _____ to send information between nodes. -
✔✔logical addresses, such as IP addresses
✔✔What type of WAN topology is pictured below? Headquarters in middle and buildings
indivudaly connected - ✔✔hub and spoke
SOLUTIONS RATED A+
✔✔Polar plot diagrams are used for which purpose? - ✔✔Identifying a device's
directionality at a given frequency
✔✔The polar plot below shows a loudspeaker's coverage pattern at 4 kHz. What is this
loudpspeaker's coverage angle? - ✔✔60 degrees
✔✔An increase in voltage means an increase in _____. - ✔✔resistance, if the current
remains the same
✔✔The ____ in an electrical circuit is proportional to the applied ____. - ✔✔current;
voltage
✔✔As impedance increases and current remains constant, voltage _____. -
✔✔increases
✔✔If the measured voltage in a circuit is 40 V, and the resistance is 8 ohms, what is the
current? - ✔✔5A
✔✔The relationship between current and ____ is inversely proportional. - ✔✔resistance
✔✔Resistance ____ the flow of current. - ✔✔reduces
✔✔If the measured current in a circuit is 5 A and the resistance is 8 ohms, what is the
voltage? - ✔✔40
✔✔If the measured current is 10 A and the voltage is 120 V, what is the resistance in
the circuit? - ✔✔12 Ohms
✔✔The current in a circuit is 0.5 A, and the voltage is measured at 9 V. What is the
power? - ✔✔4.5 W
✔✔The current in a circuit is measured at 1 A, and the resistance is 1 ohm. What is the
voltage? - ✔✔1 V
✔✔There are eight loudspeakers wired in parallel and each loudspeaker's impedance is
16 ohms. The impedance of the circuit is _____ ohms. - ✔✔2 ohms
✔✔There are four loudspeakers wired in parallel. Two of the loudspeakers each have
an impedance of 8 ohms. Two of the loudspeakers each have an impedance of 16
ohms. Calculate the impedance of this parallel circuit. - ✔✔2.7 ohms
,✔✔Which of the following is a polar plot diagram? - ✔✔Polar plot picture
✔✔Determine the wattage in a circuit measuring 120 volts with 15 amperes of current
flow. - ✔✔1800 W
✔✔The relationship among voltage, current, and resistance is defined by the
formula_____. - ✔✔I = V/R
✔✔If the measured power in a circuit is 5W, and the current is 1.5 amps, what is the
voltage? - ✔✔3.3 V
✔✔Your room design can accommodate a screen with a width of up to 80 inches wide.
The screen height is reasonably unrestrained. Your client's video image source
produces a 1920 x 1080 resolution. Which of the following screens could be a viable
option in this scenario? Choose all that apply. - ✔✔A screen with an image width of 80
inches and a height of 45 inches; A screen with an image width of 40 inches and a
height of 22.5 inches
✔✔What is the aspect ratio of a screen with a width of 108 inches (2743 mm) and a
diagonal of 135 inches (3429)? - ✔✔135:101.25
✔✔You require a 16:9 screen with a height of 60 inches (1524 mm). What will the
screen's diagonal be? - ✔✔122.4
✔✔A 16:9 screen will be installed in a lecture hall. The screen's diagonal is 72 inches
(1829 mm). What is its width? - ✔✔59.5
✔✔A screen's dimensions are 96 inches (2438 mm) x 96 inches (2438 mm). What width
does an image on that screen need to be for a 16:9 aspect ratio image? - ✔✔96 inches
(2438 mm)
✔✔What viewing category applies to a space used for technical drawings? - ✔✔ADM
✔✔What viewing category applies to a space used for PowerPoint presentations? -
✔✔BDM
✔✔What Viewing Category applies to a space used for medical imagery? - ✔✔ADM
✔✔What Viewing Category applies to a space used for word processing and
spreadsheets? - ✔✔BDM
,✔✔What viewing category applies to a space used for word processing and technical
drawings? - ✔✔Both ADM and BDM
✔✔Calculate the image height for a 2 percent element height (round to the nearest inch
or millimeter): - ✔✔84 in
✔✔Calculate the image height for a 3 percent element height (round to the nearest inch
or millimeter): - ✔✔56 in
✔✔Calculate the image height for a 4 percent element height (round to the nearest inch
or millimeter): - ✔✔42 in
✔✔The benefits of DISCAS include (Check all that apply): - ✔✔Are independently
confirmed and ratified; Takes different resolutions into account; Takes different aspect
ratios into account
✔✔The most common type of Viewing Category is __________. - ✔✔Basic Decision
Making (BDM)
✔✔In a BDM environment, viewers are more concerned with __________. - ✔✔overall
content than detail
✔✔The term "% element height" refers to __________. - ✔✔the height of the element
being viewed expressed in relation to the overall image height
✔✔DISCAS defines the minimum distance one can be to a display as the __________,
and the maximum distance one can be from a display as __________. - ✔✔Closest
Viewer; Farthest Viewer
✔✔An element is __________. (Choose the best answer) - ✔✔a group of pixels
conveying an item of information
✔✔DISCAS addresses the following viewing categories (check all that apply): -
✔✔Basic Decision Making; Analytical Decision Making
✔✔If an intended viewer needs to distinguish the finest details displayed, the
designer/assessor should use the __________ Viewing Category. - ✔✔Analytical
Decision Making
✔✔There is a Closest Viewer calculation for ADM. - ✔✔FALSE
✔✔No viewing position in the horizontal plane should exceed __________ degrees
from the opposite perpendicular edge of the displayed image. - ✔✔60
, ✔✔An elevation view is a required drawing for ADM. - ✔✔FALSE
✔✔There is a Closest Viewer for BDM. - ✔✔TRUE
✔✔DISCAS calculations must use consistent units. - ✔✔TRUE
✔✔The Farthest Viewer distance for ADM depends on (select all that apply): -
✔✔Image Height; Verical Image Resolution
✔✔The Farthest Viewer Distance for BDM depends on (choose the best answer): -
✔✔A and B
✔✔A screen is 72 inches (1829 mm) wide and the throw ratio is 2.1:1. How far from the
screen should the projector be placed? Express your answer in inches or millimeters. -
✔✔151.2 in
✔✔A screen is 125 inches (3175 mm) wide and the throw ratio is 2.3:1. How far from
the screen should the projector be placed? Express your answer in inches or millimeters
- ✔✔287.5 in
✔✔What is a projector's throw distance? - ✔✔the distance between a location on the
projector to the screen for a given image size
✔✔Estimating throw distance requires two values: ____ and ____. - ✔✔screen width;
throw ratio
✔✔The screen is 90 inches (2286 mm) wide and the lens ratio is 2.0:1. How far from
the screen should the projector be placed? - ✔✔180 in
✔✔The screen is 120 inches (3048 mm) wide and the lens ratio is 2.5:1. How far from
the screen should the projector be placed? - ✔✔300 in
✔✔In a ____ WAN topology, all LAN sites connect to an ISP backbone. - ✔✔common
carrier
✔✔A wide area network (WAN) uses _____ to send information between nodes. -
✔✔logical addresses, such as IP addresses
✔✔What type of WAN topology is pictured below? Headquarters in middle and buildings
indivudaly connected - ✔✔hub and spoke
