
Solar Angles and Illuminance Concepts
Interactive Video
•
Physics, Science, Architecture
•
10th - 12th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary difference between sunlight and daylight in technical terms?
Daylight is direct, while sunlight is diffused.
Sunlight is direct, while daylight is diffused.
Sunlight is artificial, while daylight is natural.
Daylight is artificial, while sunlight is natural.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the solar altitude angle affect the illuminance produced by an overcast sky?
It has no effect.
It decreases the illuminance.
It determines the illuminance level.
It increases the illuminance.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Under clear sky conditions, what is the typical illuminance provided by direct sunlight?
200 kilo lux
150 kilo lux
100 kilo lux
50 kilo lux
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the luminous efficacy value used for in estimating illuminance?
To measure temperature
To calculate energy consumption
To estimate illuminance from solar irradiance
To determine the color of light
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example provided, what is the calculated illuminance when the irradiance sensor reads 30 watts per meter square under overcast conditions?
3200 lux
3500 lux
3000 lux
3300 lux
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What tool is used to specify the orientation angle from the north or south direction?
Sun chart
Shadow angle protractor
Altimeter
Compass
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the shadow angle protractor help determine?
The plan overshadowing range
The month of the year
The time of day
The temperature of the environment
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