AVIXA Recognized AV Technologist AV Systems
Multiple Choice Exam– Complete Study Test
1. A signal transmitted at the proper level will _____ over distance.
a. decrease in signal strength or amplitude
b. pick up additional harmonics to the fundamental frequency
c. decrease in signal frequency
d. maintain signal level
Answer: A
Explanation: As a signal travels through a medium it loses energy due to attenuation.
This results in a reduction of amplitude over distance. Proper system gain structure
reduces but does not eliminate this effect.
2. If voltage stayed the same and current increased, resistance would have _____.
a. increased
b. stayed the same
c. reversed polarity
d. decreased
Answer: D
Explanation: Ohm’s Law states V = IR. If voltage remains constant and current increases,
resistance must decrease. This inverse relationship is fundamental in electrical systems.
3. Which of the following display technologies are transmissive?
a. Virtual reality headsets
b. Interactive whiteboards
c. LCD
d. LED
Answer: C
Explanation: LCD displays are transmissive because they use a backlight that passes
through liquid crystal layers. The crystals control light transmission to form images. This
differs from emissive technologies like LED.
4. What is the purpose of a wall wash in a three-point lighting system?
a. It fills in shadows cast by other lights
b. It is the brightest light on the subject
c. It lights the background and adds depth
d. It creates an outline around the subject to separate it from the background
Answer: C
Explanation: A wall wash illuminates the background in a lighting setup. It adds depth
and separation between subject and background. This improves visual composition.
5. What does a sightline study determine?
a. to determine room size
b. to determine how many people should be in a room while observing a display
c. to determine table and chair spacing
d. to determine seating layout and screen position
, Answer: D
Explanation: A sightline study ensures all viewers can clearly see the display. It
determines optimal seating layout and screen position. This is critical in AV design.
6. Lower sensitivity microphones may be used in order to _____.
a. reduce energy consumption
b. save money
c. capture low sound pressure level sources
d. capture high sound pressure level sources
Answer: D
Explanation: Low-sensitivity microphones are designed for loud environments. They
prevent distortion from high SPL sources. This is common in concerts and loud
instruments.
7. What is the definition of frequency?
a. molecular movement cycle
b. distance between waveform points
c. number of cycles per second
d. sound intensity
Answer: C
Explanation: Frequency is measured in Hertz and represents cycles per second. It
determines pitch in audio signals. Higher frequency equals higher pitch.
8. Which statement about automatic mixers is true?
a. used for speech applications
b. only for music
c. only one channel adjusts
d. require live personnel
Answer: A
Explanation: Automatic mixers are mainly used in speech systems like conferences. They
automatically manage multiple microphones. This improves clarity and reduces noise.
9. What type of wave has the highest electromagnetic frequency?
a. ultraviolet
b. infrared
c. microwaves
d. radio frequencies
Answer: A
Explanation: Ultraviolet waves have higher frequency than infrared, microwaves, and
radio waves. Higher frequency means higher energy. They are near X-rays in the
spectrum.
10. The dimensions of antennas are related to _____.
a. carrier frequency
b. location
c. content
d. height
Answer: A
Explanation: Antenna size depends on wavelength which is determined by carrier
frequency. Higher frequency means smaller antennas. This ensures resonance efficiency.
, 11. RGB signals in analog displays are typically _____.
a. combined
b. kept separate
c. radio transmitted
d. IP transmitted
Answer: B
Explanation: Keeping RGB separate preserves image quality. It prevents interference and
signal loss. This is standard in professional video systems.
12. Advantage of IPv6 over IPv4 is _____.
a. easier memory
b. more addresses
c. more use
d. simpler format
Answer: B
Explanation: IPv6 provides a vastly larger address space. This solves IPv4 exhaustion
problems. It supports modern network expansion.
13. Cable bend radius is _____.
a. max safe bend
b. EM field strength
c. number of bends
d. thickness
Answer: A
Explanation: Bend radius is the minimum curve a cable can safely handle. Exceeding it
may damage conductors. It is important for installation reliability.
14. Transmissive display technology is _____.
a. emissive
b. transmissive
c. reflective
d. expressive
Answer: B
Explanation: Transmissive displays pass light through a medium to form images. LCD is
the main example. Light is controlled by liquid crystals.
15. Bidirectional microphone pattern is _____.
a. hypercardioid
b. bidirectional
c. omnidirectional
d. cardioid
Answer: B
Explanation: Bidirectional microphones capture sound from front and back. They reject
side noise. They are used in interviews and stereo recording.
16. HDMI connector is used for _____.
a. analog audio
b. digital video/audio/control
c. RF transmission
d. power only
Answer: B
Multiple Choice Exam– Complete Study Test
1. A signal transmitted at the proper level will _____ over distance.
a. decrease in signal strength or amplitude
b. pick up additional harmonics to the fundamental frequency
c. decrease in signal frequency
d. maintain signal level
Answer: A
Explanation: As a signal travels through a medium it loses energy due to attenuation.
This results in a reduction of amplitude over distance. Proper system gain structure
reduces but does not eliminate this effect.
2. If voltage stayed the same and current increased, resistance would have _____.
a. increased
b. stayed the same
c. reversed polarity
d. decreased
Answer: D
Explanation: Ohm’s Law states V = IR. If voltage remains constant and current increases,
resistance must decrease. This inverse relationship is fundamental in electrical systems.
3. Which of the following display technologies are transmissive?
a. Virtual reality headsets
b. Interactive whiteboards
c. LCD
d. LED
Answer: C
Explanation: LCD displays are transmissive because they use a backlight that passes
through liquid crystal layers. The crystals control light transmission to form images. This
differs from emissive technologies like LED.
4. What is the purpose of a wall wash in a three-point lighting system?
a. It fills in shadows cast by other lights
b. It is the brightest light on the subject
c. It lights the background and adds depth
d. It creates an outline around the subject to separate it from the background
Answer: C
Explanation: A wall wash illuminates the background in a lighting setup. It adds depth
and separation between subject and background. This improves visual composition.
5. What does a sightline study determine?
a. to determine room size
b. to determine how many people should be in a room while observing a display
c. to determine table and chair spacing
d. to determine seating layout and screen position
, Answer: D
Explanation: A sightline study ensures all viewers can clearly see the display. It
determines optimal seating layout and screen position. This is critical in AV design.
6. Lower sensitivity microphones may be used in order to _____.
a. reduce energy consumption
b. save money
c. capture low sound pressure level sources
d. capture high sound pressure level sources
Answer: D
Explanation: Low-sensitivity microphones are designed for loud environments. They
prevent distortion from high SPL sources. This is common in concerts and loud
instruments.
7. What is the definition of frequency?
a. molecular movement cycle
b. distance between waveform points
c. number of cycles per second
d. sound intensity
Answer: C
Explanation: Frequency is measured in Hertz and represents cycles per second. It
determines pitch in audio signals. Higher frequency equals higher pitch.
8. Which statement about automatic mixers is true?
a. used for speech applications
b. only for music
c. only one channel adjusts
d. require live personnel
Answer: A
Explanation: Automatic mixers are mainly used in speech systems like conferences. They
automatically manage multiple microphones. This improves clarity and reduces noise.
9. What type of wave has the highest electromagnetic frequency?
a. ultraviolet
b. infrared
c. microwaves
d. radio frequencies
Answer: A
Explanation: Ultraviolet waves have higher frequency than infrared, microwaves, and
radio waves. Higher frequency means higher energy. They are near X-rays in the
spectrum.
10. The dimensions of antennas are related to _____.
a. carrier frequency
b. location
c. content
d. height
Answer: A
Explanation: Antenna size depends on wavelength which is determined by carrier
frequency. Higher frequency means smaller antennas. This ensures resonance efficiency.
, 11. RGB signals in analog displays are typically _____.
a. combined
b. kept separate
c. radio transmitted
d. IP transmitted
Answer: B
Explanation: Keeping RGB separate preserves image quality. It prevents interference and
signal loss. This is standard in professional video systems.
12. Advantage of IPv6 over IPv4 is _____.
a. easier memory
b. more addresses
c. more use
d. simpler format
Answer: B
Explanation: IPv6 provides a vastly larger address space. This solves IPv4 exhaustion
problems. It supports modern network expansion.
13. Cable bend radius is _____.
a. max safe bend
b. EM field strength
c. number of bends
d. thickness
Answer: A
Explanation: Bend radius is the minimum curve a cable can safely handle. Exceeding it
may damage conductors. It is important for installation reliability.
14. Transmissive display technology is _____.
a. emissive
b. transmissive
c. reflective
d. expressive
Answer: B
Explanation: Transmissive displays pass light through a medium to form images. LCD is
the main example. Light is controlled by liquid crystals.
15. Bidirectional microphone pattern is _____.
a. hypercardioid
b. bidirectional
c. omnidirectional
d. cardioid
Answer: B
Explanation: Bidirectional microphones capture sound from front and back. They reject
side noise. They are used in interviews and stereo recording.
16. HDMI connector is used for _____.
a. analog audio
b. digital video/audio/control
c. RF transmission
d. power only
Answer: B
