AVIXA Recognized AV Technologist AV
Systems & Networking Fundamentals
Examination-Graded A
1. A signal transmitted at the proper level will _____ over distance.
a. increase in strength
b. decrease in signal strength or amplitude
c. remain constant without loss
d. double in frequency
Answer: B
Explanation: As a signal travels through a medium, it naturally loses energy due to
resistance, interference, and distance. This reduction in amplitude is called attenuation.
Even properly transmitted signals will still weaken over distance. This is a fundamental
concept in AV signal flow and transmission design.
2. If voltage stayed the same and current increased, resistance would have _____.
a. increased
b. doubled
c. decreased
d. remained unchanged
Answer: C
Explanation: According to Ohm’s Law, resistance is inversely proportional to current
when voltage remains constant. If current increases, resistance must decrease. This
relationship helps explain circuit behavior in electrical systems. It is essential for
troubleshooting AV electronics.
3. What is an example of transmissive display technology?
a. OLED
b. Plasma
c. LCD
d. LED wall
Answer: C
Explanation: LCDs are transmissive because they rely on a backlight shining through
liquid crystal layers. The crystals control how much light passes through each pixel. This
makes LCDs dependent on external illumination.
4. What is the purpose of a wall wash in a three-point lighting system?
a. To highlight the subject directly
b. To eliminate shadows completely
c. It lights the background and adds depth
d. To reduce camera exposure
Answer: C
Explanation: A wall wash is used to illuminate the background in a lighting setup. It
separates the subject from the background visually. This creates depth and improves
scene composition. It is a key part of professional lighting design.
, 5. What does a sightline study determine?
a. Cable routing paths
b. Audio delay timing
c. The most appropriate seating layout and screen position
d. Lighting placement only
Answer: C
Explanation: A sightline study ensures that all audience members can clearly view a
display or stage. It determines optimal seating angles and screen placement. This prevents
visual obstructions in AV environments. It is essential for auditorium and conference
design.
6. Lower sensitivity microphones may be used in order to _____.
a. reduce background noise
b. capture high sound pressure level sources, such as a singer
c. increase echo
d. filter RF interference
Answer: B
Explanation: Low-sensitivity microphones are designed to handle loud audio sources
without distortion. They are ideal for vocals or instruments producing high sound
pressure levels. This ensures clean and accurate audio capture.
7. What is the definition of frequency?
a. Loudness of a signal
b. Number of times a complete cycle occurs per second
c. Strength of electrical current
d. Speed of sound waves
Answer: B
Explanation: Frequency is the number of waveform cycles that occur in one second. It is
measured in Hertz (Hz). Higher frequency corresponds to higher pitch in audio systems.
It is a core concept in acoustics.
8. What are common applications for automatic mixers?
a. Video production
b. Lighting automation
c. Speech applications, such as meetings
d. Network routing systems
Answer: C
Explanation: Automatic mixers are used in environments with multiple microphones.
They automatically control which microphones are active. This reduces noise, feedback,
and unwanted sound pickup. They are widely used in conferencing systems.
9. What type of wave has the highest frequency in the electromagnetic spectrum?
a. Infrared
b. Radio waves
c. Ultraviolet
d. Gamma rays
Answer: C
Explanation: Ultraviolet waves have higher frequency than visible light and infrared.
They carry more energy than lower-frequency waves. This makes them useful in
scientific and sterilization applications.
Systems & Networking Fundamentals
Examination-Graded A
1. A signal transmitted at the proper level will _____ over distance.
a. increase in strength
b. decrease in signal strength or amplitude
c. remain constant without loss
d. double in frequency
Answer: B
Explanation: As a signal travels through a medium, it naturally loses energy due to
resistance, interference, and distance. This reduction in amplitude is called attenuation.
Even properly transmitted signals will still weaken over distance. This is a fundamental
concept in AV signal flow and transmission design.
2. If voltage stayed the same and current increased, resistance would have _____.
a. increased
b. doubled
c. decreased
d. remained unchanged
Answer: C
Explanation: According to Ohm’s Law, resistance is inversely proportional to current
when voltage remains constant. If current increases, resistance must decrease. This
relationship helps explain circuit behavior in electrical systems. It is essential for
troubleshooting AV electronics.
3. What is an example of transmissive display technology?
a. OLED
b. Plasma
c. LCD
d. LED wall
Answer: C
Explanation: LCDs are transmissive because they rely on a backlight shining through
liquid crystal layers. The crystals control how much light passes through each pixel. This
makes LCDs dependent on external illumination.
4. What is the purpose of a wall wash in a three-point lighting system?
a. To highlight the subject directly
b. To eliminate shadows completely
c. It lights the background and adds depth
d. To reduce camera exposure
Answer: C
Explanation: A wall wash is used to illuminate the background in a lighting setup. It
separates the subject from the background visually. This creates depth and improves
scene composition. It is a key part of professional lighting design.
, 5. What does a sightline study determine?
a. Cable routing paths
b. Audio delay timing
c. The most appropriate seating layout and screen position
d. Lighting placement only
Answer: C
Explanation: A sightline study ensures that all audience members can clearly view a
display or stage. It determines optimal seating angles and screen placement. This prevents
visual obstructions in AV environments. It is essential for auditorium and conference
design.
6. Lower sensitivity microphones may be used in order to _____.
a. reduce background noise
b. capture high sound pressure level sources, such as a singer
c. increase echo
d. filter RF interference
Answer: B
Explanation: Low-sensitivity microphones are designed to handle loud audio sources
without distortion. They are ideal for vocals or instruments producing high sound
pressure levels. This ensures clean and accurate audio capture.
7. What is the definition of frequency?
a. Loudness of a signal
b. Number of times a complete cycle occurs per second
c. Strength of electrical current
d. Speed of sound waves
Answer: B
Explanation: Frequency is the number of waveform cycles that occur in one second. It is
measured in Hertz (Hz). Higher frequency corresponds to higher pitch in audio systems.
It is a core concept in acoustics.
8. What are common applications for automatic mixers?
a. Video production
b. Lighting automation
c. Speech applications, such as meetings
d. Network routing systems
Answer: C
Explanation: Automatic mixers are used in environments with multiple microphones.
They automatically control which microphones are active. This reduces noise, feedback,
and unwanted sound pickup. They are widely used in conferencing systems.
9. What type of wave has the highest frequency in the electromagnetic spectrum?
a. Infrared
b. Radio waves
c. Ultraviolet
d. Gamma rays
Answer: C
Explanation: Ultraviolet waves have higher frequency than visible light and infrared.
They carry more energy than lower-frequency waves. This makes them useful in
scientific and sterilization applications.
