Duct Sizing
Quiz
•
Science
•
9th Grade
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the primary purpose of duct sizing in HVAC systems?
To ensure proper air flow and distribution
To reduce the cost of materials
To increase the noise levels
To minimize the size of the HVAC unit
Tags
NGSS.HS-PS3-4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following factors is most important when determining duct size?
Color of the duct
Material of the duct
Air flow rate
Length of the duct
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In duct sizing, what does the term 'friction loss' refer to?
Loss of air due to leaks
Loss of air speed due to bends
Loss of pressure due to resistance
Loss of temperature due to insulation
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which scientific principle is primarily used in calculating duct size?
Bernoulli's principle
Newton's third law
Pascal's law
Boyle's law
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the unit of measurement commonly used for duct size in HVAC systems?
Meters
Inches
Liters
Kilograms
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How does increasing the diameter of a duct affect air flow?
Increases air flow
Decreases air flow
Has no effect on air flow
Reverses air flow direction
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the effect of duct length on air pressure in a system?
Longer ducts increase pressure
Longer ducts decrease pressure
Duct length has no effect on pressure
Duct length reverses pressure direction
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