AVIXA Video 1 Essentials Vision and
Perception Test Questions and Answers
1. Which of the following stage lighting instruments is used as a spotlight?
a. PAR can
b. Fresnel
c. Ellipsoidal Reflective Spotlight (ERS)
d. Floodlight
Answer: C
Explanation: The Ellipsoidal Reflective Spotlight (ERS) is the correct instrument used as
a spotlight. It provides precise control of light direction and shape. It is commonly used
in stage and AV presentations where focus and accuracy are required.
2. The visual field of the human eye is wide at approximately:
a. 120 degrees
b. 160 degrees
c. 200 degrees
d. 300 degrees
Answer: C
Explanation: The human visual field is approximately 200 degrees horizontally when
both eyes are combined. This wide range helps with spatial awareness and motion
detection. However, only a smaller central area is sharply focused.
3. The word "Chroma" is sometimes used for the ___ of each hue.
a. Brightness
b. Saturation
c. Frequency
d. Contrast
Answer: B
Explanation: Chroma refers to the saturation or intensity of a color. It describes how
vivid or pure a hue appears. Higher chroma means more intense color, while lower
chroma appears dull or gray.
4. The back light:
a. Illuminates the background
b. Fills shadows
c. Shines on the subject's shoulders and hair
d. Lights the audience
Answer: C
Explanation: The back light is used to illuminate the edges of the subject, especially
shoulders and hair. It helps separate the subject from the background. This improves
depth and visual clarity in production.
5. Why is color temperature awareness important in the AV industry?
a. It controls sound levels
b. It allows brightness adjustment only
, c. It allows adjusting the whiteness of light for optimal display
d. It increases resolution
Answer: C
Explanation: Color temperature affects how white light appears on screens and cameras.
Matching color temperatures ensures accurate color reproduction. This is essential for
professional AV environments.
6. Which of the following describes the number of cycles in a given time period?
a. Wavelength
b. Amplitude
c. Frequency
d. Dispersion
Answer: C
Explanation: Frequency refers to the number of cycles occurring per second. It is
measured in Hertz (Hz). In light and sound systems, frequency determines properties like
color or pitch.
7. How many dimensions does color space possess?
a. One
b. Two
c. Three
d. Four
Answer: C
Explanation: Color space has three dimensions: hue, value, and saturation. These
components fully describe how humans perceive color. Together, they define all visible
colors.
8. The fill light does which of the following?
a. Creates shadows
b. Fills in dark spots created by key light
c. Acts as a backlight
d. Projects patterns
Answer: B
Explanation: The fill light reduces shadows created by the key light. It softens contrast on
the subject’s face or object. This results in a more balanced and natural image.
9. The source or bulb of the light output is called a:
a. Lens
b. Reflector
c. Lamp
d. Fixture
Answer: C
Explanation: A lamp is the actual light-producing bulb inside a fixture. It generates
illumination when powered. The fixture is only the housing that holds the lamp.
10. A spot meter is used to take ___ light measurements.
a. Incident
b. Reflected
c. Ambient
d. Diffused
Answer: B
, Explanation: A spot meter measures reflected light from a specific area. It helps
determine exposure precisely in photography and video. This ensures accurate brightness
control.
11. Designers of visual presentations try to _____ ambient light.
a. Increase
b. Balance
c. Minimize
d. Reflect
Answer: C
Explanation: Ambient light reduces contrast and can wash out visuals. Designers aim to
minimize it for better image clarity. Controlled lighting improves overall presentation
quality.
12. Different colors of light vary in:
a. Frequency
b. Brightness
c. Wavelength
d. Intensity
Answer: C
Explanation: Different colors correspond to different wavelengths of light. Wavelength
determines how color is perceived by the human eye. This is fundamental in
understanding light behavior.
13. Perceived illumination decreases by ____ when the distance from a light source is
doubled.
a. 25%
b. 50%
c. 75%
d. 100%
Answer: C
Explanation: According to the inverse square law, doubling distance reduces light
intensity to one-quarter. This results in a 75% decrease in brightness. It is a key principle
in lighting design.
14. The refractive index varies for different wavelengths of light, producing an effect called
____
a. Reflection
b. Refraction
c. Dispersion
d. Absorption
Answer: C
Explanation: Dispersion occurs when different wavelengths of light bend at different
angles. This separates white light into its component colors. It is commonly seen in
prisms and rainbows.
15. The different distributions of white light sources means that each white light ____ is:
a. Constant
b. Color temperature
c. Shadow
d. Frequency
Perception Test Questions and Answers
1. Which of the following stage lighting instruments is used as a spotlight?
a. PAR can
b. Fresnel
c. Ellipsoidal Reflective Spotlight (ERS)
d. Floodlight
Answer: C
Explanation: The Ellipsoidal Reflective Spotlight (ERS) is the correct instrument used as
a spotlight. It provides precise control of light direction and shape. It is commonly used
in stage and AV presentations where focus and accuracy are required.
2. The visual field of the human eye is wide at approximately:
a. 120 degrees
b. 160 degrees
c. 200 degrees
d. 300 degrees
Answer: C
Explanation: The human visual field is approximately 200 degrees horizontally when
both eyes are combined. This wide range helps with spatial awareness and motion
detection. However, only a smaller central area is sharply focused.
3. The word "Chroma" is sometimes used for the ___ of each hue.
a. Brightness
b. Saturation
c. Frequency
d. Contrast
Answer: B
Explanation: Chroma refers to the saturation or intensity of a color. It describes how
vivid or pure a hue appears. Higher chroma means more intense color, while lower
chroma appears dull or gray.
4. The back light:
a. Illuminates the background
b. Fills shadows
c. Shines on the subject's shoulders and hair
d. Lights the audience
Answer: C
Explanation: The back light is used to illuminate the edges of the subject, especially
shoulders and hair. It helps separate the subject from the background. This improves
depth and visual clarity in production.
5. Why is color temperature awareness important in the AV industry?
a. It controls sound levels
b. It allows brightness adjustment only
, c. It allows adjusting the whiteness of light for optimal display
d. It increases resolution
Answer: C
Explanation: Color temperature affects how white light appears on screens and cameras.
Matching color temperatures ensures accurate color reproduction. This is essential for
professional AV environments.
6. Which of the following describes the number of cycles in a given time period?
a. Wavelength
b. Amplitude
c. Frequency
d. Dispersion
Answer: C
Explanation: Frequency refers to the number of cycles occurring per second. It is
measured in Hertz (Hz). In light and sound systems, frequency determines properties like
color or pitch.
7. How many dimensions does color space possess?
a. One
b. Two
c. Three
d. Four
Answer: C
Explanation: Color space has three dimensions: hue, value, and saturation. These
components fully describe how humans perceive color. Together, they define all visible
colors.
8. The fill light does which of the following?
a. Creates shadows
b. Fills in dark spots created by key light
c. Acts as a backlight
d. Projects patterns
Answer: B
Explanation: The fill light reduces shadows created by the key light. It softens contrast on
the subject’s face or object. This results in a more balanced and natural image.
9. The source or bulb of the light output is called a:
a. Lens
b. Reflector
c. Lamp
d. Fixture
Answer: C
Explanation: A lamp is the actual light-producing bulb inside a fixture. It generates
illumination when powered. The fixture is only the housing that holds the lamp.
10. A spot meter is used to take ___ light measurements.
a. Incident
b. Reflected
c. Ambient
d. Diffused
Answer: B
, Explanation: A spot meter measures reflected light from a specific area. It helps
determine exposure precisely in photography and video. This ensures accurate brightness
control.
11. Designers of visual presentations try to _____ ambient light.
a. Increase
b. Balance
c. Minimize
d. Reflect
Answer: C
Explanation: Ambient light reduces contrast and can wash out visuals. Designers aim to
minimize it for better image clarity. Controlled lighting improves overall presentation
quality.
12. Different colors of light vary in:
a. Frequency
b. Brightness
c. Wavelength
d. Intensity
Answer: C
Explanation: Different colors correspond to different wavelengths of light. Wavelength
determines how color is perceived by the human eye. This is fundamental in
understanding light behavior.
13. Perceived illumination decreases by ____ when the distance from a light source is
doubled.
a. 25%
b. 50%
c. 75%
d. 100%
Answer: C
Explanation: According to the inverse square law, doubling distance reduces light
intensity to one-quarter. This results in a 75% decrease in brightness. It is a key principle
in lighting design.
14. The refractive index varies for different wavelengths of light, producing an effect called
____
a. Reflection
b. Refraction
c. Dispersion
d. Absorption
Answer: C
Explanation: Dispersion occurs when different wavelengths of light bend at different
angles. This separates white light into its component colors. It is commonly seen in
prisms and rainbows.
15. The different distributions of white light sources means that each white light ____ is:
a. Constant
b. Color temperature
c. Shadow
d. Frequency
