CTS Exam Study Cards
When working with a client to design an AV solution for a new conference center, the client requests a
detailed budget for the equipment and installation. In what project phase does this occur? - Answer -
Design Phase
AV Specialists determine the end users needs by examining three things: the required applications, the
tasks, and .... - Answer -Function of the applications
When verifying a display system, what should be used to determine whether it meets a specified
contrast ratio? - Answer -Spot Photometer
A simple dimmer rack is feeding 24 incandescent lights during a stage production. The rack is running on
a steady 230v AC supply and averaging a current draw of approximately 98 amps. Suddenly the line
voltage drops to 211v AC. Calculate the expected draw at this new voltage. - Answer -90 Amps
The question is to test familiarity with Ohm's Law and the relationships between voltage, current, and
resistance. If the voltage decreases but the load remains constant, than the current must also decrease.
So if the voltage falls from 230 to 211 volts than the current must fall proportionately. As 211/230=.92
the current drawn will be 98x.92=90.16(90 amps), **Note that incndescenet lamps are a resistive load,
not a constant power load such as an amp or a projector. The answer would be different with a constant
power device.
,For what purpose would an AV tech designate a loop back internet protocol address in the range of
127.0.0.1 to 127.255.255.254 in network configuration? - Answer -To test the local device to see
whether TCP/IP is working on the system.
In the needs analysis pyramid, what is used to define tasks that will be used to define the scope of the
project? - Answer -Applications
While evaluating a potential AC conference room site, you notice the HVAC system appears to be
introducing a substantial amount of noise into the environment. What should be your first course of
action? - Answer -Ask to obtain measurements of the HVAC noise using a SPL meter (A Weighted).
Record the measurements and provide them to the design team to articulate the implications to the
client's site.
What should be the specific capabilities of the AV systems defined in the program report/concept design
report be based on? - Answer -Identified needs of the end user
The minimum load safety rating for mounting audiovisual equipment is.... - Answer -5:1
When establishing initial contact with a client, try to develop a relationship early on with the.... - Answer
-stakeholders
The document that is presented to the end user as a summary of the need analysis and site survey is
called the ..... - Answer -Program Report/Concept Design Report
The minimum load safety rating for mounting audiovisual equipment is... - Answer -5:1
In a digital signal, the on state is represented by...., and the off state is represented by.... - Answer -One;
Zero
The audio signal ends up in an....before being converted into acoustical energy. - Answer -Output Device
What is crossover? - Answer -an electrical frequency dividing network circuit.
,Electromagnetic radiation is categorized by its.... - Answer -Wavelength
Illumination decreases by....when the distance from a light source is doubled. - Answer -75%
To measure bandwidth of an image, you will need a.... - Answer -Spectrum Analyzer
The....the gain number of projection screen, the....the image. - Answer -The higher the gain number of a
projection screen the brighter the image.
Which IEEE standard defines Wi-Fi communications methods? - Answer -The IEEE 802.11 standard
defines wifi communication methods.
What is required to set an IP address manually on a network? - Answer -An IP address and subnet mask
are required to set an IP address manually on a network
Which type of server automatically assigns an IP address to the MAC address during the device's
connection to a network? - Answer -A DHCP server automatically assigns an IP address to the MAC
address during the device's connection to a network.
What differentiates a cable from a wire? - Answer -Cable contains multiple conductors
Unless amplified or buffered, digital signals generally do not travel as far as ....signals - Answer -analog
signals
What do switchers do? - Answer -Switchers allow the user to select one input from a number of inputs
The inside of a typical AV rack is...wide, and the outside varies from.... - Answer -The inside of a typical
AC rack i 19 inches (482.6mm)wide, and the outside varies from 21 to 25 inches(533 to 635mm).
Which of the following is more likely to be a function rather than a program?
, a. starting a video conference
b. playing a video
c. dimming the lights and starting a media player
d. setting volume levels - Answer -d. setting volume levels is more likely to be a function than a program.
Power is measured in.... - Answer -Power is measured in watts
The reationship between voltage, current, and resistance is defined by the formula.... - Answer -The
relationship between voltage, current, and resistance is defined by the formula, I=V/R
The main panel distributes power using...... - Answer -The main panel distributes power using feeders
and distribution panels.
An AC signal of...falls into the RF spectrum. - Answer -An AC signal of 3kHz to 300GHz falls into the RF
spectrum
What does a transmitter do with its incoming signal stream? - Answer -modulates its incoming signal
stream to be sent out via antenna
One of the most efficient configurations for a vertical antenna is to.... - Answer -One of the most
efficient configurations for a vertical antenna is to have a physical length 1/4 of the signal wavelength
Parabolic antennas are ideal for use in... - Answer -Parabolic antennas are ideal for use in point to point
communications
How does knowledge of the overall room function assist the AV system designer in defining the client
needs? - Answer -Knowledge of the overall room function assists the AV system designer by providing a
starting point from which to determine client needs.
How does the AV team use information about any identified constraints to the AV design and
installation tasks? - Answer -The AV team uses information about any identified constraints to the AV
design and installation tasks to develop a work-around plan when these constraints will affect the design
or installation tasks.
When working with a client to design an AV solution for a new conference center, the client requests a
detailed budget for the equipment and installation. In what project phase does this occur? - Answer -
Design Phase
AV Specialists determine the end users needs by examining three things: the required applications, the
tasks, and .... - Answer -Function of the applications
When verifying a display system, what should be used to determine whether it meets a specified
contrast ratio? - Answer -Spot Photometer
A simple dimmer rack is feeding 24 incandescent lights during a stage production. The rack is running on
a steady 230v AC supply and averaging a current draw of approximately 98 amps. Suddenly the line
voltage drops to 211v AC. Calculate the expected draw at this new voltage. - Answer -90 Amps
The question is to test familiarity with Ohm's Law and the relationships between voltage, current, and
resistance. If the voltage decreases but the load remains constant, than the current must also decrease.
So if the voltage falls from 230 to 211 volts than the current must fall proportionately. As 211/230=.92
the current drawn will be 98x.92=90.16(90 amps), **Note that incndescenet lamps are a resistive load,
not a constant power load such as an amp or a projector. The answer would be different with a constant
power device.
,For what purpose would an AV tech designate a loop back internet protocol address in the range of
127.0.0.1 to 127.255.255.254 in network configuration? - Answer -To test the local device to see
whether TCP/IP is working on the system.
In the needs analysis pyramid, what is used to define tasks that will be used to define the scope of the
project? - Answer -Applications
While evaluating a potential AC conference room site, you notice the HVAC system appears to be
introducing a substantial amount of noise into the environment. What should be your first course of
action? - Answer -Ask to obtain measurements of the HVAC noise using a SPL meter (A Weighted).
Record the measurements and provide them to the design team to articulate the implications to the
client's site.
What should be the specific capabilities of the AV systems defined in the program report/concept design
report be based on? - Answer -Identified needs of the end user
The minimum load safety rating for mounting audiovisual equipment is.... - Answer -5:1
When establishing initial contact with a client, try to develop a relationship early on with the.... - Answer
-stakeholders
The document that is presented to the end user as a summary of the need analysis and site survey is
called the ..... - Answer -Program Report/Concept Design Report
The minimum load safety rating for mounting audiovisual equipment is... - Answer -5:1
In a digital signal, the on state is represented by...., and the off state is represented by.... - Answer -One;
Zero
The audio signal ends up in an....before being converted into acoustical energy. - Answer -Output Device
What is crossover? - Answer -an electrical frequency dividing network circuit.
,Electromagnetic radiation is categorized by its.... - Answer -Wavelength
Illumination decreases by....when the distance from a light source is doubled. - Answer -75%
To measure bandwidth of an image, you will need a.... - Answer -Spectrum Analyzer
The....the gain number of projection screen, the....the image. - Answer -The higher the gain number of a
projection screen the brighter the image.
Which IEEE standard defines Wi-Fi communications methods? - Answer -The IEEE 802.11 standard
defines wifi communication methods.
What is required to set an IP address manually on a network? - Answer -An IP address and subnet mask
are required to set an IP address manually on a network
Which type of server automatically assigns an IP address to the MAC address during the device's
connection to a network? - Answer -A DHCP server automatically assigns an IP address to the MAC
address during the device's connection to a network.
What differentiates a cable from a wire? - Answer -Cable contains multiple conductors
Unless amplified or buffered, digital signals generally do not travel as far as ....signals - Answer -analog
signals
What do switchers do? - Answer -Switchers allow the user to select one input from a number of inputs
The inside of a typical AV rack is...wide, and the outside varies from.... - Answer -The inside of a typical
AC rack i 19 inches (482.6mm)wide, and the outside varies from 21 to 25 inches(533 to 635mm).
Which of the following is more likely to be a function rather than a program?
, a. starting a video conference
b. playing a video
c. dimming the lights and starting a media player
d. setting volume levels - Answer -d. setting volume levels is more likely to be a function than a program.
Power is measured in.... - Answer -Power is measured in watts
The reationship between voltage, current, and resistance is defined by the formula.... - Answer -The
relationship between voltage, current, and resistance is defined by the formula, I=V/R
The main panel distributes power using...... - Answer -The main panel distributes power using feeders
and distribution panels.
An AC signal of...falls into the RF spectrum. - Answer -An AC signal of 3kHz to 300GHz falls into the RF
spectrum
What does a transmitter do with its incoming signal stream? - Answer -modulates its incoming signal
stream to be sent out via antenna
One of the most efficient configurations for a vertical antenna is to.... - Answer -One of the most
efficient configurations for a vertical antenna is to have a physical length 1/4 of the signal wavelength
Parabolic antennas are ideal for use in... - Answer -Parabolic antennas are ideal for use in point to point
communications
How does knowledge of the overall room function assist the AV system designer in defining the client
needs? - Answer -Knowledge of the overall room function assists the AV system designer by providing a
starting point from which to determine client needs.
How does the AV team use information about any identified constraints to the AV design and
installation tasks? - Answer -The AV team uses information about any identified constraints to the AV
design and installation tasks to develop a work-around plan when these constraints will affect the design
or installation tasks.
