Duct Sizing

Duct Sizing

9th Grade

15 Qs

quiz-placeholder

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Duct Sizing

Duct Sizing

Assessment

Quiz

Science

9th Grade

Hard

NGSS
HS-PS3-4, HS-ETS1-3

Standards-aligned

Created by

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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