 2 out of 2 points

What design goal associated with task factors is specifically concerned with adaptation,
visibility, glare and brightness perception?

Correct b.
Answer: Luminan
ce

 Question 2
2 out of 2 points
These types of general lighting systems radiate light in all directions.

Correct d.
Answer: Open Direct
Luminaires
 Question 3
2 out of 2 points
What happens when the selected frequency of the light wave matches the frequency at
which electrons in the atoms of that material vibrate?

Correct c.
Answer: Absorptio
n

 Question 4
2 out of 2 points
What is the minimum required Color Rendition Index (CRI) for Industrial and general
illumination where color is not important?

Correct b.
Answer: 50-
70

 Question 5
2 out of 2 points
One of these statements defines what asymmetric luminaire is.

Correct b.
Answer: Luminaire with a stronger distribution in one direction, such as away
from a wall
 Question 6
2 out of 2 points
One of these statements defines what diffuse luminaire is:

Correct a.
Answer: Emits light in all directions
uniformly

 Question 7
2 out of 2 points
When people complain about the presence of bright light sources, luminaires or windows,
what type of visual irritation are they experiencing?

Correct d.
Answer: Discomfort
glare

 Question 8
2 out of 2 points
This element provides the necessary circuit conditions (voltage, current, and wave form)
to start and operate the fluorescent lamps.

Correct b.
Answer: Ballas
ts

 Question 9
2 out of 2 points
A type of radiation production used in man-made light sources in which the process
involves a material absorbing radiation and then re-emitting light; also known as
fluorescence.

Correct c.
Answer: Luminescen
ce

 Question 10
2 out of 2 points
When dispersed light hits the back of the raindrop, what specifically happens next to the
dispersed light?

Correct a.
Answer: It gets internally
reflected
 Question 11
2 out of 2 points
This type of Architectural lighting systems provides flexibility in design and make it
possible to accommodate changing displays.

Correct b.
Answer: Track-Mounted Lighting
Fixtures

 Question 12
2 out of 2 points
One of these statements is NOT an objective of a luminaire:

Correct a.
Answer: Vary the mood in a
room

 Question 13
0 out of 2 points
It is the true "fingerprint" of a light source as it is the key to how that light source renders
colors.

Correct b.
Answer: Spectral power
distribution

 Question 14
2 out of 2 points
A type of adaption experienced by the human visual system when someone suddenly
drives through a a dark tunnel coming from a bright environment.

Correct a.
Answer: Transient
adaptation

 Question 15
2 out of 2 points
Which light source has more power in the short wavelength (below 450 nanometers) of
the visible spectrum?

Correct e.
Answer: Fluorescent
lamp

 Question 16
 2 out of 2 points
This type of glare occurs when the visual system is exposed to a sudden, large increase in
luminance of the whole visual field.

Correct c.
Answer: Adaptation
glare

 Question 17
0 out of 2 points
This element in a fluorescent bulb transforms UV radiation into visible light and the color
of light produced depends on the composition of this element.

Correct b.
Answer: Phosphor
coating

 Question 18
0 out of 2 points
A type of lighting that radiates a comfortable level of brightness without glare and allows
the occupant to see and walk about safely.

Correct d.
Answer: General
lighting

 Question 19
0 out of 2 points
This landscape lighting technique is done with the spotlight in front of a plant material
that has a tall adjacent wall to serve as a backdrop.

Correct a.
Answer: Shadowi
ng

 Question 20
2 out of 2 points
One of these statements defines what adjustable luminaire is:

Correct c.
Answer: Luminaire that can be modified to throw light in directions other
than down

 Question 21
0 out of 2 points
If an incident ray of light strikes a polished reflective surface at an angle 35 O from an
imaginary line perpendicular to the wall, the angle of the reflected light will be:
 Correct b.
Answer: Reflected 55O from the surface of
the wall.

 Question 22
2 out of 2 points
One of these elements is NOT a part of a luminaire:

Correct e.
Answer: Control
s

 Question 23
2 out of 2 points
A landscaping lighting technique whare a light source is placed behind the subject; it is
also called back lighting.

Correct b.
Answer: Silhouetti
ng

 Question 24
2 out of 2 points
A type of lighting that tends to create drama as a result of greater contrast between the
brightness this lighting type and ambient lighting.

Correct c.
Answer: Accent
lighting

 Question 25
2 out of 2 points
Which type of lamp is strongly affected by input voltage?

Correct b.
Answer: Incandescent
lamps

 Question 26
2 out of 2 points
A type of adaptation in the human visual system that accounts for changes at luminance
values encountered in electrically lighted environments.

Correct c.
 Answer: Neural
adaptation

 Question 27
2 out of 2 points
This type of Architectural lighting systems is particularly important when visual
responsibilities are difficult to perform because of low contrast, high speed, and/or worker
age.

Correct c.
Answer: Task
Lights

 Question 28
2 out of 2 points
One of these statements is NOT an objective of a lighting control.

Correct c.
Answer: Withstand the expected conditions
of use

 Question 29
2 out of 2 points
These lamps are sometimes called “quartz” lamps because their higher temperature
requires quartz envelopes instead of the softer glass used for other incandescent lamps.

Correct a.
Answer: Halogen
lamps

 Question 30
0 out of 2 points
A type of lighting that tends to create drama and usually produces 500lux or more within
a small area.

Correct b.
Answer: Task
lighting
 Question 31
2 out of 2 points
In Total Internal Reflection (TIR), when the angle of incidence of a light ray is equal to the
critical angle, the angle of refraction is:
 Correct e.
Answer: 90
degrees

 Question 32
2 out of 2 points
Which type of reflection is a key factor in the general construction of luminaires’
reflectors?

Correct b.
Answer: Specular
reflection

 Question 33
2 out of 2 points
When white light breaks into its constituent colors, it demonstrates what property?

Correct e.
Answer: Dispersi
on

 Question 34
2 out of 2 points
What design goal associated with spatial factors is specifically concerned with scale and
shape, styling, luminance patterns and intensities?

Correct a.
Answer: Pleasantne
ss

 Question 35
0 out of 2 points
This type of adaptation can be experienced when a person enters a tunnel on a sunny day
or in the event of a power failure in a windowless building.

Correct a.
Answer: Transient
adaptation
 Question 36
2 out of 2 points
In Total Internal Reflection (TIR), as the angle of incidence of a light ray increases from
zero to greater angles,

Correct a.
Answer: The refracted ray becomes
dimmer.

 Question 37
2 out of 2 points
What is the basis for objects of having colors?

Correct c.
Answer: Absorptio
n

 Question 38
2 out of 2 points
One of these elements is NOT part of a fluorescent lamp.

Correct a.
Answer: Mica or ceramic
disc

 Question 39
2 out of 2 points
A mercury vapor lamp with other metal compounds (known as halides) added to the arc
tube to improve both color and luminous efficacy.

Correct d.
Answer: Metal-Halide
Lamps

 Question 40
0 out of 2 points
It is a gas discharge light source that is sensitive to temperature caused by the ambient
air.

Correct b.
Answer: Fluorescent
 lamps

 Question 41
2 out of 2 points
One of these is NOT a component of an incandescent lamp.

Correct c.
Answer: Catho
de

 Question 42
2 out of 2 points
When light passes an obstacle, the shadow is not precise and sharp, giving the shadow a
fuzzy edge. What property of light is this?

Correct d.
Answer: Diffractio
n

 Question 43
2 out of 2 points
A common aspect of lighting that produces visual discomfort where luminous reflections
from specular surfaces change the contrast of the visual task.

Correct c.
Answer: Veiling
reflections

 Question 44
2 out of 2 points
It is a type of light control device that can be set at a favorite setting and will remain at
the preset intensity each time the device is switched on.

Correct b.
Answer: Toggle
dimmers

 Question 45
2 out of 2 points
What is the minimum required Color Rendition Index (CRI) for office, school, medical, and
other work and recreational spaces?
 Correct c.
Answer: 70-
79

 Question 46
2 out of 2 points
It is a term that indicates the amount of luminous flux from a light source falling on a
given area.

Correct c.
Answer: Illuminan
ce

 Question 47
2 out of 2 points
Total Internal Reflection (TIR) takes place when both conditions are met when:

Correct c.
Answer: The light is in a denser medium approaching a less dense medium, and the
incident angle is greater than the critical angle.

 Question 48
2 out of 2 points
The purpose of the gas filling of the incandescent lamp is:

Correct a.
Answer: Make the lamp last
longer.

 Question 49
0 out of 2 points
1. One of these five statements is true.

Correct d.
Answer: All Electromagnetic radiation (EMR) travel in all directions through a vacuum, at
the same speed, different wavelengths and frequencies, and dissipate as they
go farther from the source.

 Question 50
2 out of 2 points
A glare that is experienced most frequently on the roads at night when facing an
oncoming vehicle.

Correct b.
Answer: Disability
glare